Merge from emacs-24; up to 2012-12-05T00:13:56Z!yamaoka@jpl.org

[bpt/emacs.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 3c8be79..2f1124d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -23,6 +23,9 @@ dnl  along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 AC_PREREQ(2.65)
 AC_INIT(emacs, 24.3.50)
+dnl This is the documented way to record the args passed to configure,
+dnl rather than $ac_configure_args.
+emacs_config_options="$@"
 AC_CONFIG_HEADER(src/config.h:src/config.in)
 AC_CONFIG_SRCDIR(src/lisp.h)
 AC_CONFIG_AUX_DIR(build-aux)
@@ -727,23 +730,12 @@ else
   # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
   nw="$nw -Wshadow"
 
+  # Emacs's use of alloca inhibits protecting the stack.
+  nw="$nw -Wstack-protector"
+
   # The following line should be removable at some point.
   nw="$nw -Wsuggest-attribute=pure"
 
-  AC_MSG_CHECKING([whether to use -Wstack-protector])
-  AC_PREPROC_IFELSE(
-    [AC_LANG_PROGRAM(
-       [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \
-           && 4 < __GNUC__ + (7 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__)))
-          /* OK */
-         #else
-          #error "Not GCC, or GCC before 4.7.2, or 'long int' has < 64 bits."
-        #endif
-       ]])],
-    [AC_MSG_RESULT(yes)],
-    [AC_MSG_RESULT(no)
-     nw="$nw -Wstack-protector"])
-
   gl_MANYWARN_ALL_GCC([ws])
   gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
   for w in $ws; do
@@ -1483,8 +1475,8 @@ tmp_CPPFLAGS="$CPPFLAGS"
 tmp_CFLAGS="$CFLAGS"
 CPPFLAGS="$CPPFLAGS -x objective-c"
 CFLAGS="$CFLAGS -x objective-c"
-TEMACS_LDFLAGS2="\${LDFLAGS}"
 GNU_OBJC_CFLAGS=
+LIBS_GNUSTEP=
 if test "${with_ns}" != no; then
   if test "${opsys}" = darwin; then
      NS_IMPL_COCOA=yes
@@ -1511,9 +1503,9 @@ if test "${with_ns}" != no; then
      CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
      CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
      LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
+     LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
      LIB_STANDARD=
      START_FILES=
-     TEMACS_LDFLAGS2=
      dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
      dnl If they had chosen to either define it or not, we could have
      dnl just used AC_CHECK_DECL here.
@@ -1564,7 +1556,7 @@ fail;
   fi
 fi
 
-AC_SUBST(TEMACS_LDFLAGS2)
+AC_SUBST(LIBS_GNUSTEP)
 
 INSTALL_ARCH_INDEP_EXTRA=install-etc
 ns_self_contained=no
@@ -3684,7 +3676,7 @@ AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
 case $opsys in
   dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
   dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
-  aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
+  aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
     AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
     ;;
 
@@ -4079,7 +4071,9 @@ fi
 
 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION,  "${canonical}",
                   [Define to the canonical Emacs configuration name.])
-AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
+dnl Replace any embedded " characters (bug#13274).
+emacs_config_options=`echo "$emacs_config_options" | sed -e "s/\"/'/g"`
+AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
                   [Define to the options passed to configure.])
 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
   define this to include extra configuration information.])
@@ -4293,10 +4287,6 @@ case "$opsys" in
   *) LD_SWITCH_SYSTEM_TEMACS= ;;
 esac
 
-if test "$NS_IMPL_GNUSTEP" = "yes"; then
-  LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
-fi
-
 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)