regenerate

git-svn-id: svn://tug.org/texlive/trunk@13755 c570f23f-e606-0410-a88d-b1316a301751

10 files changed, 222 insertions, 34 deletions

diff --git a/Build/source/texk/web2c/Makefile.in b/Build/source/texk/web2c/Makefile.in
index 809cdf4e272..c1998269c7f 100644
--- a/Build/source/texk/web2c/Makefile.in
+++ b/Build/source/texk/web2c/Makefile.in
@@ -187,6 +187,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -947,6 +948,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
diff --git a/Build/source/texk/web2c/configure b/Build/source/texk/web2c/configure
index 94cde9399ff..3f49a0adf28 100755
--- a/Build/source/texk/web2c/configure
+++ b/Build/source/texk/web2c/configure
@@ -906,12 +906,14 @@ CXX_HACK_LIBS
 CXX_HACK_DEPS
 CXXLD
 CXXCPP
+WARNING_CXXFLAGS
 am__fastdepCXX_FALSE
 am__fastdepCXX_TRUE
 CXXDEPMODE
 ac_ct_CXX
 CXXFLAGS
 CXX
+WARNING_CFLAGS
 CPP
 OTOOL64
 OTOOL
@@ -1032,6 +1034,7 @@ enable_dependency_tracking
 with_gnu_ld
 enable_libtool_lock
 enable_largefile
+enable_compiler_warnings
 enable_cxx_runtime_hack
 with_tex_banner
 with_editor
@@ -1739,6 +1742,9 @@ Optional Features:
   --enable-dependency-tracking   do not reject slow dependency extractors
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --disable-largefile     omit support for large files
+  --enable-compiler-warnings=[no|min|yes|max]
+                          Turn on compiler warnings [default: yes if
+                          maintainer-mode, min otherwise]
   --enable-cxx-runtime-hack  link C++ runtime statically
   --enable-auto-core      cause TeX&MF to dump core, given a certain filename
   --disable-dump-share    make fmt/base/mem files architecture-dependent
@@ -4562,13 +4568,13 @@ if test "${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:4565: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:4571: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4568: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:4574: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4571: output\"" >&5)
+  (eval echo "\"\$as_me:4577: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -5774,7 +5780,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5777 "configure"' > conftest.$ac_ext
+  echo '#line 5783 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -7129,6 +7135,21 @@ fi
 
 done
 
+# Check whether --enable-compiler-warnings was given.
+if test "${enable_compiler_warnings+set}" = set; then
+  enableval=$enable_compiler_warnings;
+fi
+case $enable_compiler_warnings in
+  no | min | yes | max) : ;;
+  *) if test "x$enable_maintainer_mode" = xyes; then
+  enable_compiler_warnings=yes
+else
+  enable_compiler_warnings=min
+fi
+ ;;
+esac
+
+
 
 if test "`cd $srcdir && pwd`" != "`pwd`"; then
   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
@@ -7720,11 +7741,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7723: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7744: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7727: \$? = $ac_status" >&5
+   echo "$as_me:7748: \$? = $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.
@@ -8059,11 +8080,11 @@ 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:8062: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8083: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:8066: \$? = $ac_status" >&5
+   echo "$as_me:8087: \$? = $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.
@@ -8164,11 +8185,11 @@ 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:8167: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8188: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8171: \$? = $ac_status" >&5
+   echo "$as_me:8192: \$? = $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
@@ -8219,11 +8240,11 @@ 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:8222: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8243: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:8226: \$? = $ac_status" >&5
+   echo "$as_me:8247: \$? = $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
@@ -11019,7 +11040,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11022 "configure"
+#line 11043 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11115,7 +11136,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11118 "configure"
+#line 11139 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13118,6 +13139,42 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
+{ $as_echo "$as_me:$LINENO: checking what warning flags to pass to the C compiler" >&5
+$as_echo_n "checking what warning flags to pass to the C compiler... " >&6; }
+if test "${kpse_cv_warning_cflags+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$enable_compiler_warnings" = xno; then
+  kpse_cv_warning_cflags=
+elif test "x$GCC" = xyes; then
+  kpse_cv_warning_cflags="-Wall -Wunused"
+  if test "x$enable_compiler_warnings" != xmin; then
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
+    case `$CC -dumpversion` in
+  3.4.* | 4.*) kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;;
+esac
+
+    if test "x$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 -Wshadow -Wpointer-arith"
+      kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
+      case `$CC -dumpversion` in
+  3.4.* | 4.*) kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wold-style-definition" ;;
+esac
+
+    fi
+  fi
+else
+  : # FIXME: warning flags for non-gcc compilers
+fi
+fi
+{ $as_echo "$as_me:$LINENO: result: $kpse_cv_warning_cflags" >&5
+$as_echo "$kpse_cv_warning_cflags" >&6; }
+WARNING_CFLAGS=$kpse_cv_warning_cflags
+
+
+
+
 
 
 ac_ext=cpp
@@ -14118,6 +14175,30 @@ else
   am__fastdepCXX_FALSE=
 fi
 
+{ $as_echo "$as_me:$LINENO: checking what warning flags to pass to the C++ compiler" >&5
+$as_echo_n "checking what warning flags to pass to the C++ compiler... " >&6; }
+if test "${kpse_cv_warning_cxxflags+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$enable_compiler_warnings" = xno; then
+  kpse_cv_warning_cxxflags=
+elif test "x$GXX" = xyes; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  if test "x$enable_compiler_warnings" != xmin; then
+    if test "x$enable_compiler_warnings" != xyes; then
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wshadow -Wpointer-arith"
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
+    fi
+  fi
+else
+  : # FIXME: warning flags for non-g++ compilers
+fi
+fi
+{ $as_echo "$as_me:$LINENO: result: $kpse_cv_warning_cxxflags" >&5
+$as_echo "$kpse_cv_warning_cxxflags" >&6; }
+WARNING_CXXFLAGS=$kpse_cv_warning_cxxflags
+
 
 if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
     ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
@@ -16169,11 +16250,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16172: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16253: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:16176: \$? = $ac_status" >&5
+   echo "$as_me:16257: \$? = $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.
@@ -16268,11 +16349,11 @@ 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:16271: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16352: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:16275: \$? = $ac_status" >&5
+   echo "$as_me:16356: \$? = $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
@@ -16320,11 +16401,11 @@ 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:16323: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16404: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:16327: \$? = $ac_status" >&5
+   echo "$as_me:16408: \$? = $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
@@ -17284,6 +17365,30 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+{ $as_echo "$as_me:$LINENO: checking what warning flags to pass to the C++ compiler" >&5
+$as_echo_n "checking what warning flags to pass to the C++ compiler... " >&6; }
+if test "${kpse_cv_warning_cxxflags+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$enable_compiler_warnings" = xno; then
+  kpse_cv_warning_cxxflags=
+elif test "x$GXX" = xyes; then
+  kpse_cv_warning_cxxflags="-Wall -Wunused"
+  if test "x$enable_compiler_warnings" != xmin; then
+    if test "x$enable_compiler_warnings" != xyes; then
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type"
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wshadow -Wpointer-arith"
+      kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings"
+    fi
+  fi
+else
+  : # FIXME: warning flags for non-g++ compilers
+fi
+fi
+{ $as_echo "$as_me:$LINENO: result: $kpse_cv_warning_cxxflags" >&5
+$as_echo "$kpse_cv_warning_cxxflags" >&6; }
+WARNING_CXXFLAGS=$kpse_cv_warning_cxxflags
+
 
 # Check whether --enable-cxx-runtime-hack was given.
 if test "${enable_cxx_runtime_hack+set}" = set; then
diff --git a/Build/source/texk/web2c/doc/Makefile.in b/Build/source/texk/web2c/doc/Makefile.in
index e3c3f06e315..22a686436f4 100644
--- a/Build/source/texk/web2c/doc/Makefile.in
+++ b/Build/source/texk/web2c/doc/Makefile.in
@@ -52,6 +52,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -209,6 +210,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
diff --git a/Build/source/texk/web2c/lib/Makefile.in b/Build/source/texk/web2c/lib/Makefile.in
index d8b30956648..d3bf99aaac8 100644
--- a/Build/source/texk/web2c/lib/Makefile.in
+++ b/Build/source/texk/web2c/lib/Makefile.in
@@ -53,6 +53,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -200,6 +201,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
@@ -274,6 +277,7 @@ wlibs = @wlibs@
 x_ext_lib = @x_ext_lib@
 x_tool_libs = @x_tool_libs@
 INCLUDES = -I$(top_builddir)/.. -I$(top_srcdir) $(KPATHSEA_INCLUDES)
+AM_CFLAGS = $(WARNING_CFLAGS)
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = \
 	basechsuffix.c \
@@ -283,6 +287,7 @@ lib_a_SOURCES = \
 	fprintreal.c \
 	inputint.c \
 	input2int.c \
+	lib.h \
 	main.c \
 	openclose.c \
 	printversion.c \
diff --git a/Build/source/texk/web2c/man/Makefile.in b/Build/source/texk/web2c/man/Makefile.in
index 860816b90b8..48306fc5251 100644
--- a/Build/source/texk/web2c/man/Makefile.in
+++ b/Build/source/texk/web2c/man/Makefile.in
@@ -63,6 +63,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -210,6 +211,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
diff --git a/Build/source/texk/web2c/omegafonts/Makefile.in b/Build/source/texk/web2c/omegafonts/Makefile.in
index 0d1cc11ff6d..55cd431787b 100644
--- a/Build/source/texk/web2c/omegafonts/Makefile.in
+++ b/Build/source/texk/web2c/omegafonts/Makefile.in
@@ -56,6 +56,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -220,6 +221,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
diff --git a/Build/source/texk/web2c/otps/Makefile.in b/Build/source/texk/web2c/otps/Makefile.in
index a5e2fbe03b2..14bde755093 100644
--- a/Build/source/texk/web2c/otps/Makefile.in
+++ b/Build/source/texk/web2c/otps/Makefile.in
@@ -58,6 +58,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -239,6 +240,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
diff --git a/Build/source/texk/web2c/web2c/Makefile.in b/Build/source/texk/web2c/web2c/Makefile.in
index 384e980c4b5..8f90e9c505c 100644
--- a/Build/source/texk/web2c/web2c/Makefile.in
+++ b/Build/source/texk/web2c/web2c/Makefile.in
@@ -61,6 +61,7 @@ DIST_COMMON = README $(am__configure_deps) $(dist_noinst_DATA) \
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../../../m4/kpse-common.m4 \
 	$(top_srcdir)/../../../m4/kpse-lex.m4 \
+	$(top_srcdir)/../../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../../m4/libtool.m4 \
 	$(top_srcdir)/../../../m4/ltoptions.m4 \
 	$(top_srcdir)/../../../m4/ltsugar.m4 \
@@ -194,6 +195,7 @@ SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
 YACC = @YACC@
 YFLAGS = @YFLAGS@
 abs_builddir = @abs_builddir@
@@ -251,6 +253,7 @@ top_srcdir = @top_srcdir@
 ACLOCAL_AMFLAGS = -I ../../../m4
 INCLUDES = -Inative -I$(srcdir)/native -I$(srcdir)/.. -I$(srcdir)/../..
 AM_YFLAGS = -d -v
+AM_CFLAGS = $(WARNING_CFLAGS)
 noinst_HEADERS = coerce.h
 dist_noinst_SCRIPTS = convert
 dist_noinst_DATA = \
diff --git a/Build/source/texk/web2c/web2c/configure b/Build/source/texk/web2c/web2c/configure
index 9c4794b00ae..cce73d3ea3f 100755
--- a/Build/source/texk/web2c/web2c/configure
+++ b/Build/source/texk/web2c/web2c/configure
@@ -795,6 +795,7 @@ LEX_OUTPUT_ROOT
 LEX
 YFLAGS
 YACC
+WARNING_CFLAGS
 CPP
 OTOOL64
 OTOOL
@@ -914,6 +915,7 @@ enable_dependency_tracking
 with_gnu_ld
 enable_libtool_lock
 enable_largefile
+enable_compiler_warnings
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1566,6 +1568,9 @@ Optional Features:
   --enable-dependency-tracking   do not reject slow dependency extractors
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --disable-largefile     omit support for large files
+  --enable-compiler-warnings=[no|min|yes|max]
+                          Turn on compiler warnings [default: yes if
+                          maintainer-mode, min otherwise]
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -4322,13 +4327,13 @@ 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:4325: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:4330: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4328: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:4333: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:4331: output\"" >&5)
+  (eval echo "\"\$as_me:4336: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -5534,7 +5539,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5537 "configure"' > conftest.$ac_ext
+  echo '#line 5542 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -6889,6 +6894,21 @@ fi
 
 done
 
+# Check whether --enable-compiler-warnings was given.
+if test "${enable_compiler_warnings+set}" = set; then
+  enableval=$enable_compiler_warnings;
+fi
+case $enable_compiler_warnings in
+  no | min | yes | max) : ;;
+  *) if test "x$enable_maintainer_mode" = xyes; then
+  enable_compiler_warnings=yes
+else
+  enable_compiler_warnings=min
+fi
+ ;;
+esac
+
+
 
 if test "`cd $srcdir && pwd`" != "`pwd`"; then
   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
@@ -7480,11 +7500,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7483: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7503: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7487: \$? = $ac_status" >&5
+   echo "$as_me:7507: \$? = $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.
@@ -7819,11 +7839,11 @@ 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:7822: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7842: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7826: \$? = $ac_status" >&5
+   echo "$as_me:7846: \$? = $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.
@@ -7924,11 +7944,11 @@ 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:7927: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7947: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7931: \$? = $ac_status" >&5
+   echo "$as_me:7951: \$? = $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
@@ -7979,11 +7999,11 @@ 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:7982: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:8002: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7986: \$? = $ac_status" >&5
+   echo "$as_me:8006: \$? = $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
@@ -10779,7 +10799,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10782 "configure"
+#line 10802 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10875,7 +10895,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10878 "configure"
+#line 10898 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12878,6 +12898,42 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
+{ $as_echo "$as_me:$LINENO: checking what warning flags to pass to the C compiler" >&5
+$as_echo_n "checking what warning flags to pass to the C compiler... " >&6; }
+if test "${kpse_cv_warning_cflags+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$enable_compiler_warnings" = xno; then
+  kpse_cv_warning_cflags=
+elif test "x$GCC" = xyes; then
+  kpse_cv_warning_cflags="-Wall -Wunused"
+  if test "x$enable_compiler_warnings" != xmin; then
+    kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations"
+    case `$CC -dumpversion` in
+  3.4.* | 4.*) kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement" ;;
+esac
+
+    if test "x$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 -Wshadow -Wpointer-arith"
+      kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings"
+      case `$CC -dumpversion` in
+  3.4.* | 4.*) kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wold-style-definition" ;;
+esac
+
+    fi
+  fi
+else
+  : # FIXME: warning flags for non-gcc compilers
+fi
+fi
+{ $as_echo "$as_me:$LINENO: result: $kpse_cv_warning_cflags" >&5
+$as_echo "$kpse_cv_warning_cflags" >&6; }
+WARNING_CFLAGS=$kpse_cv_warning_cflags
+
+
+
+
 
 
 for ac_prog in 'bison -y' byacc
diff --git a/Build/source/texk/web2c/window/Makefile.in b/Build/source/texk/web2c/window/Makefile.in
index 45826e77740..316b4352945 100644
--- a/Build/source/texk/web2c/window/Makefile.in
+++ b/Build/source/texk/web2c/window/Makefile.in
@@ -54,6 +54,7 @@ am__aclocal_m4_deps = $(top_srcdir)/../../m4/kpse-asm.m4 \
 	$(top_srcdir)/../../m4/kpse-obsdcompat-flags.m4 \
 	$(top_srcdir)/../../m4/kpse-socket-libs.m4 \
 	$(top_srcdir)/../../m4/kpse-teckit-flags.m4 \
+	$(top_srcdir)/../../m4/kpse-warnings.m4 \
 	$(top_srcdir)/../../m4/kpse-web2c.m4 \
 	$(top_srcdir)/../../m4/kpse-win32.m4 \
 	$(top_srcdir)/../../m4/kpse-xpdf-flags.m4 \
@@ -205,6 +206,8 @@ TECKIT_INCLUDES = @TECKIT_INCLUDES@
 TECKIT_LIBS = @TECKIT_LIBS@
 TIE = @TIE@
 VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
 WEB2CVERSION = @WEB2CVERSION@
 XMKMF = @XMKMF@
 XPDF_DEPEND = @XPDF_DEPEND@
@@ -280,6 +283,7 @@ x_ext_lib = @x_ext_lib@
 x_tool_libs = @x_tool_libs@
 INCLUDES = -I$(top_srcdir) $(KPATHSEA_INCLUDES)
 AM_CPPFLAGS = $(X_CFLAGS)
+AM_CFLAGS = $(WARNING_CFLAGS)
 EXTRA_LIBRARIES = libwindow.a
 libwindow_a_SOURCES = amiga.c epsf.c hp2627.c mftalk.c next.c regis.c \
 	suntools.c tek.c trap.c uniterm.c win32.c $(am__append_1) \