Bug 1302909 - Set STDC_HEADERS everywhere instead of relying on AC_HEADER_STDC. r=glandium

MozReview-Commit-ID: DXvcX1i9vuo

build/autoconf/toolchain.m4

@@ -2,13 +2,15 @@ dnl This Source Code Form is subject to the terms of the Mozilla Public
 dnl License, v. 2.0. If a copy of the MPL was not distributed with this
 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-dnl Several autoconf functions AC_REQUIRE AC_PROG_CPP/AC_PROG_CXXCPP,
-dnl meaning they are called even when we don't call them explicitly.
+dnl Several autoconf functions AC_REQUIRE AC_PROG_CPP/AC_PROG_CXXCPP
+dnl or AC_HEADER_STDC, meaning they are called even when we don't call
+dnl them explicitly.
 dnl However, theses checks are not necessary and python configure sets
 dnl the corresponding variables already, so just skip those tests
 dnl entirely.
 define([AC_PROG_CPP],[])
 define([AC_PROG_CXXCPP],[])
+define([AC_HEADER_STDC], [])
 
 AC_DEFUN([MOZ_TOOL_VARIABLES],
 [

build/moz.configure/headers.configure

@@ -8,6 +8,9 @@
 check_header('stdint.h')
 have_inttypes = check_header('inttypes.h')
 
+# Assume we have ansi C header files available.
+set_define('STDC_HEADERS', True)
+
 set_config('HAVE_INTTYPES_H', have_inttypes)
 
 building_linux = depends(target)(lambda target: target.kernel == 'Linux')

js/src/old-configure.in

@@ -856,7 +856,6 @@ case "$target" in
         RCFLAGS="-nologo"
     fi
     AC_DEFINE(HAVE__MSIZE)
-    AC_DEFINE(STDC_HEADERS)
     AC_DEFINE(WIN32_LEAN_AND_MEAN)
     BIN_SUFFIX='.exe'
     MOZ_USER_DIR="Mozilla"
@@ -979,7 +978,6 @@ fi
 if test -z "$SKIP_COMPILER_CHECKS"; then
 dnl Checks for typedefs, structures, and compiler characteristics.
 dnl ========================================================
-AC_HEADER_STDC
 AC_C_CONST
 AC_TYPE_MODE_T
 AC_TYPE_OFF_T

old-configure.in

@@ -1222,7 +1222,6 @@ case "$target" in
         dnl allow AVX2 code from VS2012
         HAVE_X86_AVX2=1
     fi
-    AC_DEFINE(STDC_HEADERS)
     AC_DEFINE(WIN32_LEAN_AND_MEAN)
     dnl See http://support.microsoft.com/kb/143208 to use STL
     AC_DEFINE(NOMINMAX)
@@ -1345,7 +1344,6 @@ fi # COMPILE_ENVIRONMENT
 if test -z "$SKIP_COMPILER_CHECKS"; then
 dnl Checks for typedefs, structures, and compiler characteristics.
 dnl ========================================================
-AC_HEADER_STDC
 AC_C_CONST
 AC_TYPE_MODE_T
 AC_TYPE_OFF_T