build system: reduce default compiler warnings

git-svn-id: svn://tug.org/texlive/trunk@16900 c570f23f-e606-0410-a88d-b1316a301751
author: Peter Breitenlohner <peb@mppmu.mpg.de> 2010-02-02 10:54:09 +0000
committer: Peter Breitenlohner <peb@mppmu.mpg.de> 2010-02-02 10:54:09 +0000
commit: 0389b5324fc851a32e84698a3a22c2b5254c8efd (patch)
tree: 47fa24111ccb773fa957b5494551dfa8eac1bbe5
parent: 2db2385dc39fb49d9b21a5b7e2eca05572baaee0 (diff)
55 files changed, 285 insertions, 239 deletions
diff --git a/Build/source/ChangeLog b/Build/source/ChangeLog
index dda078fe19c..ecb2ae4178c 100644
--- a/Build/source/ChangeLog
+++ b/Build/source/ChangeLog
@@ -1,3 +1,8 @@
+2010-02-02  Peter Breitenlohner  <peb@mppmu.mpg.de>
+
+	* m4/kpse-warnings.m4: Redefine compiler warning levels to
+	reduce the number of 'min' warnings.
+
 2009-12-24  Karl Berry  <karl@tug.org>
 
 	* Makefile.am (world): also run make check.
diff --git a/Build/source/configure b/Build/source/configure
index 0df35306e5a..f1f4ea4bf1e 100755
--- a/Build/source/configure
+++ b/Build/source/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for TeX Live 2009-12-23.
+# Generated by GNU Autoconf 2.65 for TeX Live 2010-02-01.
 #
 # Report bugs to <tex-k@tug.org>.
 #
@@ -701,8 +701,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='TeX Live'
 PACKAGE_TARNAME='tex-live'
-PACKAGE_VERSION='2009-12-23'
-PACKAGE_STRING='TeX Live 2009-12-23'
+PACKAGE_VERSION='2010-02-01'
+PACKAGE_STRING='TeX Live 2010-02-01'
 PACKAGE_BUGREPORT='tex-k@tug.org'
 PACKAGE_URL=''
 
@@ -1575,7 +1575,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures TeX Live 2009-12-23 to adapt to many kinds of systems.
+\`configure' configures TeX Live 2010-02-01 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1649,7 +1649,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of TeX Live 2009-12-23:";;
+     short | recursive ) echo "Configuration of TeX Live 2010-02-01:";;
    esac
   cat <<\_ACEOF
 
@@ -1925,7 +1925,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-TeX Live configure 2009-12-23
+TeX Live configure 2010-02-01
 generated by GNU Autoconf 2.65
 
 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -2474,7 +2474,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by TeX Live $as_me 2009-12-23, which was
+It was created by TeX Live $as_me 2010-02-01, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
@@ -9181,7 +9181,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='tex-live'
- VERSION='2009-12-23'
+ VERSION='2010-02-01'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -13757,7 +13757,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -13771,10 +13771,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -15267,7 +15267,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -15275,9 +15275,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
@@ -19702,7 +19702,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by TeX Live $as_me 2009-12-23, which was
+This file was extended by TeX Live $as_me 2010-02-01, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -19759,7 +19759,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-TeX Live config.status 2009-12-23
+TeX Live config.status 2010-02-01
 configured by $0, generated by GNU Autoconf 2.65,
   with options \\"\$ac_cs_config\\"
 
diff --git a/Build/source/configure.ac b/Build/source/configure.ac
index 22fd7702f6b..4f73175ebc1 100644
--- a/Build/source/configure.ac
+++ b/Build/source/configure.ac
@@ -6,7 +6,7 @@ dnl   This file is free software; the copyright holder
 dnl   gives unlimited permission to copy and/or distribute it,
 dnl   with or without modifications, as long as this notice is preserved.
 dnl
-AC_INIT([TeX Live], [2009-12-23], [tex-k@tug.org])
+AC_INIT([TeX Live], [2010-02-01], [tex-k@tug.org])
 AC_PREREQ([2.65])
 AC_CONFIG_SRCDIR([m4/kpse-pkgs.m4])
 AC_CONFIG_AUX_DIR([build-aux])
diff --git a/Build/source/libs/graphite/configure b/Build/source/libs/graphite/configure
index 175687f0bc7..053d3c78399 100755
--- a/Build/source/libs/graphite/configure
+++ b/Build/source/libs/graphite/configure
@@ -4407,7 +4407,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -4421,10 +4421,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -4454,7 +4454,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -4462,9 +4462,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/libs/libpng/configure b/Build/source/libs/libpng/configure
index cdf6cd99878..2b018278f45 100755
--- a/Build/source/libs/libpng/configure
+++ b/Build/source/libs/libpng/configure
@@ -3838,7 +3838,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3852,10 +3852,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/libs/teckit/configure b/Build/source/libs/teckit/configure
index 00fd4081362..df275b823e9 100755
--- a/Build/source/libs/teckit/configure
+++ b/Build/source/libs/teckit/configure
@@ -4443,7 +4443,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -4457,10 +4457,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -4490,7 +4490,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -4498,9 +4498,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/libs/zziplib/configure b/Build/source/libs/zziplib/configure
index e57d5ac3544..8c1a1458da1 100755
--- a/Build/source/libs/zziplib/configure
+++ b/Build/source/libs/zziplib/configure
@@ -4090,7 +4090,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -4104,10 +4104,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/m4/kpse-warnings.m4 b/Build/source/m4/kpse-warnings.m4
index b72a1b74721..0d481456b4f 100644
--- a/Build/source/m4/kpse-warnings.m4
+++ b/Build/source/m4/kpse-warnings.m4
@@ -1,5 +1,5 @@
 # Public macros for the TeX Live (TL) tree.
-# Copyright (C) 2009 Peter Breitenlohner <tex-live@tug.org>
+# Copyright (C) 2009, 2010 Peter Breitenlohner <tex-live@tug.org>
 #
 # This file is free software; the copyright holders
 # give unlimited permission to copy and/or distribute it,
@@ -142,7 +142,7 @@ m4_define([_KPSE_WARNING_OBJCXXFLAGS], [])[]dnl
 # Internal subroutine.
 # Determine warning flags for GNU (Objective) C compiler.
 m4_define([_KPSE_WARNING_GNU_CFLAGS],
-[kpse_cv_warning_$2="-Wall -Wunused"
+[kpse_cv_warning_$2="-Wimplicit -Wreturn-type"
 AS_CASE([`$[]$1 -dumpversion`],
         [3.4.* | 4.*],
         [kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wdeclaration-after-statement"])
@@ -150,10 +150,10 @@ AS_CASE([`$[]$1 -dumpversion`],
         [3.@<:@234@:>@.* | 4.*],
         [kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wno-unknown-pragmas"])
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_$2="-Wall -Wunused -Wimplicit $kpse_cv_warning_$2"
   kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wcast-qual -Wcast-align -Wwrite-strings"
     AS_CASE([`$[]$1 -dumpversion`],
             [3.4.* | 4.*],
@@ -170,14 +170,14 @@ fi
 # Internal subroutine.
 # Determine warning flags for GNU (Objective) C++ compiler.
 m4_define([_KPSE_WARNING_GNU_CXXFLAGS],
-[kpse_cv_warning_$2="-Wall -Wunused"
+[kpse_cv_warning_$2="-Wimplicit -Wreturn-type"
 AS_CASE([`$[]$1 -dumpversion`],
         [3.@<:@234@:>@.* | 4.*],
         [kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wno-unknown-pragmas"])
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_$2="-Wall -Wunused $kpse_cv_warning_$2"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_$2="$kpse_cv_warning_$2 -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/texk/afm2pl/configure b/Build/source/texk/afm2pl/configure
index cedf4a86935..dbfbe2b8cd4 100755
--- a/Build/source/texk/afm2pl/configure
+++ b/Build/source/texk/afm2pl/configure
@@ -11340,7 +11340,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11354,10 +11354,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/bibtex8/configure b/Build/source/texk/bibtex8/configure
index e6ac0b78ac0..bbdcde150ed 100755
--- a/Build/source/texk/bibtex8/configure
+++ b/Build/source/texk/bibtex8/configure
@@ -11331,7 +11331,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11345,10 +11345,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/bibtexu/configure b/Build/source/texk/bibtexu/configure
index aa7e54d6e37..581915be993 100755
--- a/Build/source/texk/bibtexu/configure
+++ b/Build/source/texk/bibtexu/configure
@@ -11571,7 +11571,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11585,10 +11585,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -12395,7 +12395,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -12403,9 +12403,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/texk/cjkutils/configure b/Build/source/texk/cjkutils/configure
index 8e82d161d27..15adf696a0c 100755
--- a/Build/source/texk/cjkutils/configure
+++ b/Build/source/texk/cjkutils/configure
@@ -11347,7 +11347,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11361,10 +11361,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/detex/configure b/Build/source/texk/detex/configure
index fe5981f5887..001a0f4426a 100755
--- a/Build/source/texk/detex/configure
+++ b/Build/source/texk/detex/configure
@@ -11343,7 +11343,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11357,10 +11357,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/devnag/configure b/Build/source/texk/devnag/configure
index ede86dcb44e..53b41ae09ec 100755
--- a/Build/source/texk/devnag/configure
+++ b/Build/source/texk/devnag/configure
@@ -3493,7 +3493,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3507,10 +3507,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dtl/configure b/Build/source/texk/dtl/configure
index 1e7dbf74683..b0076ed9bcd 100755
--- a/Build/source/texk/dtl/configure
+++ b/Build/source/texk/dtl/configure
@@ -11518,7 +11518,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11532,10 +11532,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvi2tty/configure b/Build/source/texk/dvi2tty/configure
index 587dd041886..63f827b32b1 100755
--- a/Build/source/texk/dvi2tty/configure
+++ b/Build/source/texk/dvi2tty/configure
@@ -11340,7 +11340,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11354,10 +11354,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvidvi/configure b/Build/source/texk/dvidvi/configure
index 9d053dc9c5e..96de7456879 100755
--- a/Build/source/texk/dvidvi/configure
+++ b/Build/source/texk/dvidvi/configure
@@ -11340,7 +11340,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11354,10 +11354,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dviljk/configure b/Build/source/texk/dviljk/configure
index 5c37e955113..9edb926ff32 100755
--- a/Build/source/texk/dviljk/configure
+++ b/Build/source/texk/dviljk/configure
@@ -11509,7 +11509,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11523,10 +11523,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvipdfmx/configure b/Build/source/texk/dvipdfmx/configure
index 4d77d6846ad..f392cc875b9 100755
--- a/Build/source/texk/dvipdfmx/configure
+++ b/Build/source/texk/dvipdfmx/configure
@@ -11635,7 +11635,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11649,10 +11649,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvipng/configure b/Build/source/texk/dvipng/configure
index c273462525d..7c83efd555f 100755
--- a/Build/source/texk/dvipng/configure
+++ b/Build/source/texk/dvipng/configure
@@ -11599,7 +11599,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11613,10 +11613,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvipos/configure b/Build/source/texk/dvipos/configure
index f653f0d1147..e916be7f065 100755
--- a/Build/source/texk/dvipos/configure
+++ b/Build/source/texk/dvipos/configure
@@ -11340,7 +11340,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11354,10 +11354,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvipsk/configure b/Build/source/texk/dvipsk/configure
index ad79362d94a..ea0ce7832ac 100755
--- a/Build/source/texk/dvipsk/configure
+++ b/Build/source/texk/dvipsk/configure
@@ -11519,7 +11519,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11533,10 +11533,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvipsk/squeeze/configure b/Build/source/texk/dvipsk/squeeze/configure
index 5750c7eec6c..bb683858e99 100755
--- a/Build/source/texk/dvipsk/squeeze/configure
+++ b/Build/source/texk/dvipsk/squeeze/configure
@@ -3290,7 +3290,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3304,10 +3304,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/dvisvgm/configure b/Build/source/texk/dvisvgm/configure
index ac44b2e5690..424b7057f03 100755
--- a/Build/source/texk/dvisvgm/configure
+++ b/Build/source/texk/dvisvgm/configure
@@ -11604,7 +11604,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11618,10 +11618,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -12450,7 +12450,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -12458,9 +12458,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/texk/gsftopk/configure b/Build/source/texk/gsftopk/configure
index 630a5f852c0..f63f9bdf9ae 100755
--- a/Build/source/texk/gsftopk/configure
+++ b/Build/source/texk/gsftopk/configure
@@ -11394,7 +11394,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11408,10 +11408,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/kpathsea/configure b/Build/source/texk/kpathsea/configure
index 7e08d9e334f..87880578977 100755
--- a/Build/source/texk/kpathsea/configure
+++ b/Build/source/texk/kpathsea/configure
@@ -11398,7 +11398,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11412,10 +11412,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/lacheck/configure b/Build/source/texk/lacheck/configure
index 8fc423b69e3..df734b42bd4 100755
--- a/Build/source/texk/lacheck/configure
+++ b/Build/source/texk/lacheck/configure
@@ -11335,7 +11335,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11349,10 +11349,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/lcdf-typetools/configure b/Build/source/texk/lcdf-typetools/configure
index 4c7516b9fb6..28bc0bdd25e 100755
--- a/Build/source/texk/lcdf-typetools/configure
+++ b/Build/source/texk/lcdf-typetools/configure
@@ -11881,7 +11881,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11895,10 +11895,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -12705,7 +12705,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -12713,9 +12713,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
diff --git a/Build/source/texk/makeindexk/configure b/Build/source/texk/makeindexk/configure
index 7db023724ed..59c8f72a688 100755
--- a/Build/source/texk/makeindexk/configure
+++ b/Build/source/texk/makeindexk/configure
@@ -11331,7 +11331,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11345,10 +11345,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/musixflx/configure b/Build/source/texk/musixflx/configure
index e81f0433bd2..c7ba98d5c59 100755
--- a/Build/source/texk/musixflx/configure
+++ b/Build/source/texk/musixflx/configure
@@ -3290,7 +3290,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3304,10 +3304,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/ps2pkm/configure b/Build/source/texk/ps2pkm/configure
index f75e12e9f4e..62eaec9438c 100755
--- a/Build/source/texk/ps2pkm/configure
+++ b/Build/source/texk/ps2pkm/configure
@@ -11331,7 +11331,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11345,10 +11345,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/seetexk/configure b/Build/source/texk/seetexk/configure
index a40714d8289..b4148154cbc 100755
--- a/Build/source/texk/seetexk/configure
+++ b/Build/source/texk/seetexk/configure
@@ -11518,7 +11518,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11532,10 +11532,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/tex4htk/configure b/Build/source/texk/tex4htk/configure
index 6704eb990b7..a72e64ba340 100755
--- a/Build/source/texk/tex4htk/configure
+++ b/Build/source/texk/tex4htk/configure
@@ -11518,7 +11518,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11532,10 +11532,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/ttf2pk/configure b/Build/source/texk/ttf2pk/configure
index b2f436b0c9e..b3548b5f62c 100755
--- a/Build/source/texk/ttf2pk/configure
+++ b/Build/source/texk/ttf2pk/configure
@@ -11352,7 +11352,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11366,10 +11366,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/ttfdump/configure b/Build/source/texk/ttfdump/configure
index be385d70f60..a442270ff6f 100755
--- a/Build/source/texk/ttfdump/configure
+++ b/Build/source/texk/ttfdump/configure
@@ -11506,7 +11506,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11520,10 +11520,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/web2c/Makefile.in b/Build/source/texk/web2c/Makefile.in
index 49deb6cee98..1eaac0518d8 100644
--- a/Build/source/texk/web2c/Makefile.in
+++ b/Build/source/texk/web2c/Makefile.in
@@ -60,12 +60,11 @@ DIST_COMMON = README $(am__configure_deps) $(dist_man_MANS) \
 	$(srcdir)/../../build-aux/install-sh \
 	$(srcdir)/../../build-aux/ltmain.sh \
 	$(srcdir)/../../build-aux/missing $(srcdir)/Makefile.am \
-	$(srcdir)/Makefile.in $(srcdir)/README \
-	$(srcdir)/alephdir/am/aleph.am $(srcdir)/am/bootstrap.am \
-	$(srcdir)/am/cweb.am $(srcdir)/am/texmf.am $(srcdir)/am/web.am \
-	$(srcdir)/c-auto.in $(srcdir)/ctangleboot-sh.in \
-	$(srcdir)/etexdir/am/etex.am $(srcdir)/libmd5/am/md5.am \
-	$(srcdir)/luatexdir/am/liblua51.am \
+	$(srcdir)/Makefile.in $(srcdir)/alephdir/am/aleph.am \
+	$(srcdir)/am/bootstrap.am $(srcdir)/am/cweb.am \
+	$(srcdir)/am/texmf.am $(srcdir)/am/web.am $(srcdir)/c-auto.in \
+	$(srcdir)/ctangleboot-sh.in $(srcdir)/etexdir/am/etex.am \
+	$(srcdir)/libmd5/am/md5.am $(srcdir)/luatexdir/am/liblua51.am \
 	$(srcdir)/luatexdir/am/libluatex.am \
 	$(srcdir)/luatexdir/am/luafontforge.am \
 	$(srcdir)/luatexdir/am/luamisc.am \
@@ -201,6 +200,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -213,7 +213,7 @@ am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
  configure.lineno config.status.lineno
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = c-auto.h ff-config.h
-CONFIG_CLEAN_FILES = CXXLD.sh web2c-sh tangle-sh ctangleboot-sh
+CONFIG_CLEAN_FILES = web2c-sh tangle-sh ctangleboot-sh
 CONFIG_CLEAN_VPATH_FILES =
 ARFLAGS = cru
 libff_a_AR = $(AR) $(ARFLAGS)
@@ -555,8 +555,8 @@ nodist_luatex_OBJECTS = $(am__objects_14) luatex-luatex-pool.$(OBJEXT) \
 luatex_OBJECTS = $(nodist_luatex_OBJECTS)
 am__DEPENDENCIES_4 = libluatex.a libff.a libluamisc.a libluasocket.a \
 	liblua51.a $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
-	$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) libmd5.a \
-	libmplib.a
+	$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
+	$(am__DEPENDENCIES_1) libmd5.a libmplib.a
 luatex_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(luatex_CXXFLAGS) $(CXXFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
@@ -908,8 +908,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -1012,6 +1010,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
@@ -2190,8 +2191,6 @@ stamp-h2: $(top_srcdir)/luatexdir/luafontloader/ff-config.in $(top_builddir)/con
 
 distclean-hdr:
 	-rm -f c-auto.h stamp-h1 ff-config.h stamp-h2
-CXXLD.sh: $(top_builddir)/config.status $(srcdir)/README
-	cd $(top_builddir) && $(SHELL) ./config.status $@
 web2c-sh: $(top_builddir)/config.status $(srcdir)/web2c-sh.in
 	cd $(top_builddir) && $(SHELL) ./config.status $@
 tangle-sh: $(top_builddir)/config.status $(srcdir)/tangle-sh.in
diff --git a/Build/source/texk/web2c/aclocal.m4 b/Build/source/texk/web2c/aclocal.m4
index af019bf2d34..7fe1e663592 100644
--- a/Build/source/texk/web2c/aclocal.m4
+++ b/Build/source/texk/web2c/aclocal.m4
@@ -1121,6 +1121,7 @@ m4_include([../../m4/kpse-web2c.m4])
 m4_include([../../m4/kpse-win32.m4])
 m4_include([../../m4/kpse-xpdf-flags.m4])
 m4_include([../../m4/kpse-zlib-flags.m4])
+m4_include([../../m4/kpse-zziplib-flags.m4])
 m4_include([../../m4/libtool.m4])
 m4_include([../../m4/ltoptions.m4])
 m4_include([../../m4/ltsugar.m4])
diff --git a/Build/source/texk/web2c/configure b/Build/source/texk/web2c/configure
index 11ae823bf18..e7f95a97c30 100755
--- a/Build/source/texk/web2c/configure
+++ b/Build/source/texk/web2c/configure
@@ -777,6 +777,10 @@ GRAPHITE_RULE
 GRAPHITE_DEPEND
 GRAPHITE_LIBS
 GRAPHITE_INCLUDES
+ZZIPLIB_RULE
+ZZIPLIB_DEPEND
+ZZIPLIB_LIBS
+ZZIPLIB_INCLUDES
 XPDF_RULE
 XPDF_DEPEND
 XPDF_LIBS
@@ -859,8 +863,6 @@ MINGW32_TRUE
 WIN32_FALSE
 WIN32_TRUE
 KPSEWHICH
-CXX_HACK_LIBS
-CXX_HACK_DEPS
 CXXLD
 WARNING_OBJCXXFLAGS
 ac_ct_OBJCXX
@@ -1038,6 +1040,7 @@ with_system_libpng
 with_libpng_includes
 with_libpng_libdir
 with_system_xpdf
+with_system_zziplib
 with_system_graphite
 with_system_freetype2
 with_system_teckit
@@ -1756,6 +1759,8 @@ Optional Packages:
                           libpng library installed in DIR
   --with-system-xpdf      use installed poppler headers and library instead of
                           xpdf (requires pkg-config)
+  --with-system-zziplib   use installed zziplib headers and library (requires
+                          pkg-config)
   --with-system-graphite  use installed silgraphite headers and library
                           (requires pkg-config)
   --with-system-freetype2 use installed freetype2 headers and library
@@ -5164,13 +5169,13 @@ if test "${lt_cv_nm_interface+set}" = set; then :
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:5167: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:5172: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5170: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:5175: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5173: output\"" >&5)
+  (eval echo "\"\$as_me:5178: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -6376,7 +6381,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 6379 "configure"' > conftest.$ac_ext
+  echo '#line 6384 "configure"' > conftest.$ac_ext
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -8008,11 +8013,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8011: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8016: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8015: \$? = $ac_status" >&5
+   echo "$as_me:8020: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8347,11 +8352,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8350: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8355: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8354: \$? = $ac_status" >&5
+   echo "$as_me:8359: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -8452,11 +8457,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8455: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8460: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8459: \$? = $ac_status" >&5
+   echo "$as_me:8464: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8507,11 +8512,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:8510: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8515: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8514: \$? = $ac_status" >&5
+   echo "$as_me:8519: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -10874,7 +10879,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10877 "configure"
+#line 10882 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10970,7 +10975,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10973 "configure"
+#line 10978 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12018,7 +12023,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -12032,10 +12037,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -12844,7 +12849,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -12852,9 +12857,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
@@ -14760,11 +14765,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14763: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14768: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14767: \$? = $ac_status" >&5
+   echo "$as_me:14772: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14859,11 +14864,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14862: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14867: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:14866: \$? = $ac_status" >&5
+   echo "$as_me:14871: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -14911,11 +14916,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14914: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14919: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:14918: \$? = $ac_status" >&5
+   echo "$as_me:14923: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -16102,7 +16107,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_objcxxflags=
 elif test "x$GOBJCXX" = xyes; then
-  kpse_cv_warning_objcxxflags="-Wall -Wunused"
+  kpse_cv_warning_objcxxflags="-Wimplicit -Wreturn-type"
 case `$OBJCXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_objcxxflags="$kpse_cv_warning_objcxxflags -Wno-unknown-pragmas" ;; #(
@@ -16110,9 +16115,9 @@ case `$OBJCXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_objcxxflags="-Wall -Wunused $kpse_cv_warning_objcxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_objcxxflags="$kpse_cv_warning_objcxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_objcxxflags="$kpse_cv_warning_objcxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_objcxxflags="$kpse_cv_warning_objcxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_objcxxflags="$kpse_cv_warning_objcxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
@@ -16225,22 +16230,18 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 fi
 if test "x$kpse_cv_cxx_hack" = xok; then
   CXXLD='$(top_builddir)/CXXLD.sh'
-  CXX_HACK_DEPS=$CXXLD
-  CXX_HACK_LIBS=$kpse_cv_cxx_flags
   cxxld_sh="#! ${CONFIG_SHELL-/bin/sh}
 # CXXLD.sh.  Generated by configure.
-set -- $CXX \"\$@\" $CXX_HACK_LIBS
+set -- $CXX \"\$@\" $kpse_cv_cxx_flags
 echo \"\$0:\" \"\$@\"
 exec \"\$@\""
-  ac_config_files="$ac_config_files CXXLD.sh:README"
+  ac_config_commands="$ac_config_commands CXXLD.sh"
 
 else
   CXXLD='$(CXX)'
 fi
 
 
-
-
 # Check whether --enable-libtool-hack was given.
 if test "${enable_libtool_hack+set}" = set; then :
   enableval=$enable_libtool_hack;
@@ -20762,7 +20763,7 @@ if test "x$with_system_xpdf" = xyes; then
   POPPLER_VERSION='-DPOPPLER_VERSION=\"'`$PKG_CONFIG poppler --modversion`'\"'
   XPDF_INCLUDES="$POPPLER_VERSION `$PKG_CONFIG poppler --cflags`"
   XPDF_LIBS=`$PKG_CONFIG poppler --libs`
-elif test "x$need_xpdf:$with_system_xpdf" = 'xyes:yes'; then
+elif test "x$need_xpdf:$with_system_xpdf" = xyes:yes; then
   as_fn_error "did not find poppler-0.10 or better" "$LINENO" 5
 fi
 else
@@ -20781,7 +20782,35 @@ ${top_builddir}/../../libs/xpdf/xpdf/Stream.h:
 	cd ${top_builddir}/../../libs/xpdf && $(MAKE) $(AM_MAKEFLAGS) rebuild'
 fi
 
-KPSE_ZZIPLIB_FLAGS
+## _KPSE_LIB_FLAGS: Setup zziplib (-lzzip) flags
+
+# Check whether --with-system-zziplib was given.
+if test "${with_system_zziplib+set}" = set; then :
+  withval=$with_system_zziplib;
+fi
+if test "x$with_system_zziplib" = xyes; then
+  if $PKG_CONFIG zziplib --atleast-version=0.12; then
+  ZZIPLIB_INCLUDES=`$PKG_CONFIG zziplib --cflags`
+  ZZIPLIB_LIBS=`$PKG_CONFIG zziplib --libs`
+elif test "x$need_zziplib:$with_system_zziplib" = xyes:yes; then
+  as_fn_error "did not find zziplib-0.12 or better" "$LINENO" 5
+fi
+else
+  ZZIPLIB_INCLUDES=`echo '-IBLD/libs/zziplib/include' | sed \
+    -e "s,SRC/,$kpse_SRC/,g" \
+    -e "s,BLD/,$kpse_BLD/,g"`
+  ZZIPLIB_LIBS=`echo 'BLD/libs/zziplib/libzzip.a' | sed \
+    -e "s,BLD/,$kpse_BLD/,g"`
+
+  ZZIPLIB_DEPEND=`echo 'BLD/libs/zziplib/libzzip.a' | sed \
+    -e 's,BLD/,${top_builddir}/../../,g'`
+   ZZIPLIB_RULE='# Rebuild libzzip
+$(ZZIPLIB_DEPEND): ${top_builddir}/../../libs/zziplib/include/zzip/zzip.h
+	cd ${top_builddir}/../../libs/zziplib && $(MAKE) $(AM_MAKEFLAGS) rebuild
+${top_builddir}/../../libs/zziplib/include/zzip/zzip.h:
+	cd ${top_builddir}/../../libs/zziplib && $(MAKE) $(AM_MAKEFLAGS) rebuild'
+fi
+
 ## _KPSE_LIB_FLAGS: Setup graphite (-lgraphite) flags
 
 # Check whether --with-system-graphite was given.
@@ -20792,7 +20821,7 @@ if test "x$with_system_graphite" = xyes; then
   if $PKG_CONFIG silgraphite --atleast-version=2.3; then
   GRAPHITE_INCLUDES="`$PKG_CONFIG silgraphite --cflags`"
   GRAPHITE_LIBS=`$PKG_CONFIG silgraphite --libs`
-elif test "x$need_graphite:$with_system_graphite" = 'xyes:yes'; then
+elif test "x$need_graphite:$with_system_graphite" = xyes:yes; then
   as_fn_error "did not find silgraphite 2.3 or better" "$LINENO" 5
 fi
 else
@@ -20913,7 +20942,7 @@ if test "x$with_system_freetype2" = xyes; then
   if $FT2_CONFIG --ftversion >/dev/null 2>&1; then
   FREETYPE2_INCLUDES=`$FT2_CONFIG --cflags`
   FREETYPE2_LIBS=`$FT2_CONFIG --libs`
-elif test "x$need_freetype2:$with_system_freetype2" = 'xyes:yes'; then
+elif test "x$need_freetype2:$with_system_freetype2" = xyes:yes; then
   as_fn_error "did not find freetype-config required for system freetype2 library" "$LINENO" 5
 fi
 else
@@ -22661,7 +22690,7 @@ do
   case $ac_config_target in
     "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
-    "CXXLD.sh") CONFIG_FILES="$CONFIG_FILES CXXLD.sh:README" ;;
+    "CXXLD.sh") CONFIG_COMMANDS="$CONFIG_COMMANDS CXXLD.sh" ;;
     "c-auto.h") CONFIG_HEADERS="$CONFIG_HEADERS c-auto.h:c-auto.in" ;;
     "ff-config.h") CONFIG_HEADERS="$CONFIG_HEADERS ff-config.h:luatexdir/luafontloader/ff-config.in" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
@@ -24162,7 +24191,7 @@ if test "x$enable_libtool_hack" = xyes; then
   chmod +x "$ofile"
 fi
  ;;
-    "CXXLD.sh":F) echo "$cxxld_sh" >CXXLD.sh; chmod +x CXXLD.sh ;;
+    "CXXLD.sh":C) echo "$cxxld_sh" >CXXLD.sh; chmod +x CXXLD.sh ;;
     "c-auto.h":H) sed -e 's/^#define PACKAGE/#define WEB2C_PACKAGE/' \
       -e 's/^#define VERSION/#define WEB2C_VERSION/' c-auto.h >c-auto.tmp && mv -f c-auto.tmp c-auto.h ;;
     "web2c-sh":F) chmod +x web2c-sh ;;
diff --git a/Build/source/texk/web2c/doc/Makefile.in b/Build/source/texk/web2c/doc/Makefile.in
index 8f06ff91d05..069cea30a89 100644
--- a/Build/source/texk/web2c/doc/Makefile.in
+++ b/Build/source/texk/web2c/doc/Makefile.in
@@ -59,6 +59,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -128,8 +129,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -232,6 +231,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/web2c/lib/Makefile.in b/Build/source/texk/web2c/lib/Makefile.in
index 5baf0602ed5..4f473047db6 100644
--- a/Build/source/texk/web2c/lib/Makefile.in
+++ b/Build/source/texk/web2c/lib/Makefile.in
@@ -60,6 +60,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -119,8 +120,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -223,6 +222,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/web2c/man/Makefile.in b/Build/source/texk/web2c/man/Makefile.in
index e1bb8014623..27f56f40481 100644
--- a/Build/source/texk/web2c/man/Makefile.in
+++ b/Build/source/texk/web2c/man/Makefile.in
@@ -74,6 +74,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -133,8 +134,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -237,6 +236,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/web2c/omegafonts/Makefile.in b/Build/source/texk/web2c/omegafonts/Makefile.in
index bdc518ed6d9..92a51ee79cd 100644
--- a/Build/source/texk/web2c/omegafonts/Makefile.in
+++ b/Build/source/texk/web2c/omegafonts/Makefile.in
@@ -63,6 +63,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -137,8 +138,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -241,6 +240,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/web2c/otps/Makefile.in b/Build/source/texk/web2c/otps/Makefile.in
index 1f1bcf6f7ed..23ae68789ae 100644
--- a/Build/source/texk/web2c/otps/Makefile.in
+++ b/Build/source/texk/web2c/otps/Makefile.in
@@ -65,6 +65,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -163,8 +164,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -267,6 +266,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/web2c/web2c/configure b/Build/source/texk/web2c/web2c/configure
index 03e34b7edcb..c7903ab8bf3 100755
--- a/Build/source/texk/web2c/web2c/configure
+++ b/Build/source/texk/web2c/web2c/configure
@@ -11517,7 +11517,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11531,10 +11531,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/web2c/window/Makefile.in b/Build/source/texk/web2c/window/Makefile.in
index 18e5a4349c1..7baaacba326 100644
--- a/Build/source/texk/web2c/window/Makefile.in
+++ b/Build/source/texk/web2c/window/Makefile.in
@@ -61,6 +61,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/web2c-disable.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-zlib-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-zziplib-flags.m4 \
 	$(top_srcdir)/../../m4/libtool.m4 \
 	$(top_srcdir)/../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../m4/ltsugar.m4 \
@@ -124,8 +125,6 @@ CXXCPP = @CXXCPP@
 CXXDEPMODE = @CXXDEPMODE@
 CXXFLAGS = @CXXFLAGS@
 CXXLD = @CXXLD@
-CXX_HACK_DEPS = @CXX_HACK_DEPS@
-CXX_HACK_LIBS = @CXX_HACK_LIBS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -228,6 +227,9 @@ YFLAGS = @YFLAGS@
 ZLIB_DEPEND = @ZLIB_DEPEND@
 ZLIB_INCLUDES = @ZLIB_INCLUDES@
 ZLIB_LIBS = @ZLIB_LIBS@
+ZZIPLIB_DEPEND = @ZZIPLIB_DEPEND@
+ZZIPLIB_INCLUDES = @ZZIPLIB_INCLUDES@
+ZZIPLIB_LIBS = @ZZIPLIB_LIBS@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/Build/source/texk/xdv2pdf/configure b/Build/source/texk/xdv2pdf/configure
index 10ad3e8a3c1..adffb9ab4ba 100755
--- a/Build/source/texk/xdv2pdf/configure
+++ b/Build/source/texk/xdv2pdf/configure
@@ -11580,7 +11580,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11594,10 +11594,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
@@ -12404,7 +12404,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cxxflags=
 elif test "x$GXX" = xyes; then
-  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  kpse_cv_warning_cxxflags="-Wimplicit -Wreturn-type"
 case `$CXX -dumpversion` in #(
   3.[234].* | 4.*) :
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas" ;; #(
@@ -12412,9 +12412,9 @@ case `$CXX -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused $kpse_cv_warning_cxxflags"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
   fi
     if test "x$enable_compiler_warnings" != xmax; then
@@ -15787,7 +15787,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_objcflags=
 elif test "x$GOBJC" = xyes; then
-  kpse_cv_warning_objcflags="-Wall -Wunused"
+  kpse_cv_warning_objcflags="-Wimplicit -Wreturn-type"
 case `$OBJC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wdeclaration-after-statement" ;; #(
@@ -15801,10 +15801,10 @@ case `$OBJC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_objcflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_objcflags"
   kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_objcflags="$kpse_cv_warning_objcflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$OBJC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/xdvik/configure b/Build/source/texk/xdvik/configure
index f81d8ef2eec..ebdf3a63001 100755
--- a/Build/source/texk/xdvik/configure
+++ b/Build/source/texk/xdvik/configure
@@ -11700,7 +11700,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11714,10 +11714,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/xdvik/squeeze/configure b/Build/source/texk/xdvik/squeeze/configure
index f046995a5dc..f7ec3ed4b1e 100755
--- a/Build/source/texk/xdvik/squeeze/configure
+++ b/Build/source/texk/xdvik/squeeze/configure
@@ -3290,7 +3290,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3304,10 +3304,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/texk/xdvipdfmx/configure b/Build/source/texk/xdvipdfmx/configure
index 4cbee2fcb77..0744dd629d6 100755
--- a/Build/source/texk/xdvipdfmx/configure
+++ b/Build/source/texk/xdvipdfmx/configure
@@ -11658,7 +11658,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -11672,10 +11672,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/pdfopen/configure b/Build/source/utils/pdfopen/configure
index c6e1c8c0f26..a497c6d3502 100755
--- a/Build/source/utils/pdfopen/configure
+++ b/Build/source/utils/pdfopen/configure
@@ -3461,7 +3461,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3475,10 +3475,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/ps2eps/configure b/Build/source/utils/ps2eps/configure
index f013bf53a28..66c5cc36433 100755
--- a/Build/source/utils/ps2eps/configure
+++ b/Build/source/utils/ps2eps/configure
@@ -3291,7 +3291,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3305,10 +3305,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/psutils/configure b/Build/source/utils/psutils/configure
index 0024998b5c5..23ca4650d2a 100755
--- a/Build/source/utils/psutils/configure
+++ b/Build/source/utils/psutils/configure
@@ -3291,7 +3291,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3305,10 +3305,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/t1utils/configure b/Build/source/utils/t1utils/configure
index 36d491f1bea..f46d7da4f29 100755
--- a/Build/source/utils/t1utils/configure
+++ b/Build/source/utils/t1utils/configure
@@ -3963,7 +3963,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3977,10 +3977,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/vlna/configure b/Build/source/utils/vlna/configure
index 4ac94e9a762..89b0d6ae589 100755
--- a/Build/source/utils/vlna/configure
+++ b/Build/source/utils/vlna/configure
@@ -3288,7 +3288,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3302,10 +3302,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
diff --git a/Build/source/utils/xindy-new/configure b/Build/source/utils/xindy-new/configure
index 7779c5dc9c2..988c86bbe16 100755
--- a/Build/source/utils/xindy-new/configure
+++ b/Build/source/utils/xindy-new/configure
@@ -3745,7 +3745,7 @@ else
   if test "x$enable_compiler_warnings" = xno; then
   kpse_cv_warning_cflags=
 elif test "x$GCC" = xyes; then
-  kpse_cv_warning_cflags="-Wall -Wunused"
+  kpse_cv_warning_cflags="-Wimplicit -Wreturn-type"
 case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;; #(
@@ -3759,10 +3759,10 @@ case `$CC -dumpversion` in #(
      ;;
 esac
 if test "x$enable_compiler_warnings" != xmin; then
+  kpse_cv_warning_cflags="-Wall -Wunused -Wimplicit $kpse_cv_warning_cflags"
   kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
   if test "x$enable_compiler_warnings" != xyes; then
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type"
-    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wpointer-arith"
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wparentheses -Wswitch -Wtrigraphs -Wpointer-arith"
     kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
     case `$CC -dumpversion` in #(
   3.4.* | 4.*) :
author	Peter Breitenlohner <peb@mppmu.mpg.de>	2010-02-02 10:54:09 +0000
committer	Peter Breitenlohner <peb@mppmu.mpg.de>	2010-02-02 10:54:09 +0000
commit	0389b5324fc851a32e84698a3a22c2b5254c8efd (patch)
tree	47fa24111ccb773fa957b5494551dfa8eac1bbe5
parent	2db2385dc39fb49d9b21a5b7e2eca05572baaee0 (diff)