4 files changed, 71 insertions, 1 deletions
diff --git a/Build/source/texk/web2c/web2c/ChangeLog b/Build/source/texk/web2c/web2c/ChangeLog
index 3972f5eab2a..e43657a3a20 100644
--- a/Build/source/texk/web2c/web2c/ChangeLog
+++ b/Build/source/texk/web2c/web2c/ChangeLog
@@ -1,3 +1,7 @@
+2015-04-17  Peter Breitenlohner  <peb@mppmu.mpg.de>
+
+	* configure.ac: Test if isascii is declared.
+
 2015-01-19  Peter Breitenlohner  <peb@mppmu.mpg.de>
 
 	* common.defines: Remove intcast.
diff --git a/Build/source/texk/web2c/web2c/c-auto.in b/Build/source/texk/web2c/web2c/c-auto.in
index e198ab43076..1659ea715ec 100644
--- a/Build/source/texk/web2c/web2c/c-auto.in
+++ b/Build/source/texk/web2c/web2c/c-auto.in
@@ -6,6 +6,10 @@
 /* Define to 1 if you have the <assert.h> header file. */
 #undef HAVE_ASSERT_H
 
+/* Define to 1 if you have the declaration of `isascii', and to 0 if you
+   don't. */
+#undef HAVE_DECL_ISASCII
+
 /* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
    */
 #undef HAVE_DIRENT_H
diff --git a/Build/source/texk/web2c/web2c/configure b/Build/source/texk/web2c/web2c/configure
index 3db75bed5d3..37613c1771b 100755
--- a/Build/source/texk/web2c/web2c/configure
+++ b/Build/source/texk/web2c/web2c/configure
@@ -2310,6 +2310,52 @@ rm -f conftest.val
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_compute_int
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -13963,6 +14009,19 @@ fi
 
 
 
+ac_fn_c_check_decl "$LINENO" "isascii" "ac_cv_have_decl_isascii" "#include <ctype.h>
+"
+if test "x$ac_cv_have_decl_isascii" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_ISASCII $ac_have_decl
+_ACEOF
+
+
 ac_config_headers="$ac_config_headers kpathsea/c-auto.h:c-auto.in"
 
 
diff --git a/Build/source/texk/web2c/web2c/configure.ac b/Build/source/texk/web2c/web2c/configure.ac
index 56dc0e6d515..3beca468860 100644
--- a/Build/source/texk/web2c/web2c/configure.ac
+++ b/Build/source/texk/web2c/web2c/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with Autoconf to produce a configure script for Web2c.
 dnl
-dnl   Copyright (C) 2009-2014 Peter Breitenlohner <tex-live@tug.org>
+dnl   Copyright (C) 2009-2015 Peter Breitenlohner <tex-live@tug.org>
 dnl
 dnl   This file is free software; the copyright holder
 dnl   gives unlimited permission to copy and/or distribute it,
@@ -35,6 +35,9 @@ AC_CHECK_SIZEOF([long])
 AC_CHECK_SIZEOF([void *])
 AC_TYPE_UINTPTR_T
 
+dnl Check if <ctype.h> declares isascii.
+AC_CHECK_DECLS([isascii], [], [], [[#include <ctype.h>]])
+
 dnl Write output here, instead of putting a zillion -D's on the command line.
 AC_CONFIG_HEADERS([kpathsea/c-auto.h:c-auto.in])