* configure.in: Check for exec-shield.

* configure: Rebuild.

diff --git a/ChangeLog b/ChangeLog
index d7d85c0..a06d464 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-24  Jan Dj\e,Ad\e(Brv  <jan.h.d@swipnet.se>
+
+       * configure.in: Check for exec-shield.
+       * configure: Rebuild.
+
 2004-08-06  Andreas Schwab  <schwab@suse.de>
 
        * Makefile.in (install-arch-indep, uninstall): Add flymake.

diff --git a/configure b/configure
index 0e74a04..204bf90 100755 (executable)
--- a/configure
+++ b/configure
@@ -310,7 +310,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS MAINT build build_cpu build_vendor build_os host host_cpu host_vendor host_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT LN_S CPP INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA RANLIB ac_ct_RANLIB INSTALL_INFO EGREP LIBSOUND SET_MAKE PKG_CONFIG GTK_CFLAGS GTK_LIBS ALLOCA liblockfile LIBOBJS NEED_SETGID KMEM_GROUP GETLOADAVG_LIBS version configuration canonical srcdir lispdir locallisppath lisppath x_default_search_path etcdir archlibdir docdir bitmapdir gamedir gameuser c_switch_system c_switch_machine LD_SWITCH_X_SITE LD_SWITCH_X_SITE_AUX C_SWITCH_X_SITE X_TOOLKIT_TYPE machfile opsysfile carbon_appdir LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS MAINT build build_cpu build_vendor build_os host host_cpu host_vendor host_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT LN_S CPP INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA RANLIB ac_ct_RANLIB INSTALL_INFO EGREP SETARCH LIBSOUND SET_MAKE PKG_CONFIG GTK_CFLAGS GTK_LIBS ALLOCA liblockfile LIBOBJS NEED_SETGID KMEM_GROUP GETLOADAVG_LIBS version configuration canonical srcdir lispdir locallisppath lisppath x_default_search_path etcdir archlibdir docdir bitmapdir gamedir gameuser c_switch_system c_switch_machine LD_SWITCH_X_SITE LD_SWITCH_X_SITE_AUX C_SWITCH_X_SITE X_TOOLKIT_TYPE machfile opsysfile carbon_appdir LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -4278,6 +4278,80 @@ rm -f conftest*
 
 
 
+echo "$as_me:$LINENO: checking for /proc/sys/kernel/exec-shield" >&5
+echo $ECHO_N "checking for /proc/sys/kernel/exec-shield... $ECHO_C" >&6
+if test "${ac_cv_file__proc_sys_kernel_exec_shield+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  test "$cross_compiling" = yes &&
+  { { echo "$as_me:$LINENO: error: cannot check for file existence when cross compiling" >&5
+echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
+   { (exit 1); exit 1; }; }
+if test -r "/proc/sys/kernel/exec-shield"; then
+  ac_cv_file__proc_sys_kernel_exec_shield=yes
+else
+  ac_cv_file__proc_sys_kernel_exec_shield=no
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_file__proc_sys_kernel_exec_shield" >&5
+echo "${ECHO_T}$ac_cv_file__proc_sys_kernel_exec_shield" >&6
+if test $ac_cv_file__proc_sys_kernel_exec_shield = yes; then
+  emacs_cv_execshield=1
+else
+  emacs_cv_execshield=0
+fi
+
+if test "$emacs_cv_execshield" = 1; then
+   # Extract the first word of "setarch", so it can be a program name with args.
+set dummy setarch; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_SETARCH+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $SETARCH in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_SETARCH="$SETARCH" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_SETARCH="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_path_SETARCH" && ac_cv_path_SETARCH="no"
+  ;;
+esac
+fi
+SETARCH=$ac_cv_path_SETARCH
+
+if test -n "$SETARCH"; then
+  echo "$as_me:$LINENO: result: $SETARCH" >&5
+echo "${ECHO_T}$SETARCH" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+
+   if test "$setarch" != no; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_EXECSHIELD 1
+_ACEOF
+
+   fi
+fi
+
 #### Extract some information from the operating system and machine files.
 
 { echo "$as_me:$LINENO: checking the machine- and system-dependent files to find out
@@ -13275,7 +13349,6 @@ done
 
 
 
-
 
 
 for ac_func in gethostname getdomainname dup2 \
@@ -13286,7 +13359,7 @@ utimes setrlimit setpgid getcwd getwd shutdown getaddrinfo \
 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm index rindex \
 sendto recvfrom getsockopt setsockopt getsockname getpeername \
 gai_strerror mkstemp getline getdelim mremap memmove fsync bzero \
-memset memcmp memmove difftime memcpy mempcpy mblen mbrlen posix_memalign
+memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -22002,6 +22075,7 @@ s,@RANLIB@,$RANLIB,;t t
 s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
 s,@INSTALL_INFO@,$INSTALL_INFO,;t t
 s,@EGREP@,$EGREP,;t t
+s,@SETARCH@,$SETARCH,;t t
 s,@LIBSOUND@,$LIBSOUND,;t t
 s,@SET_MAKE@,$SET_MAKE,;t t
 s,@PKG_CONFIG@,$PKG_CONFIG,;t t

diff --git a/configure.in b/configure.in
index b7318b8..52c35bb 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1286,6 +1286,17 @@ AC_LINK_IFELSE([main(){return 0;}],
 dnl checks for Unix variants
 AC_AIX
 
+dnl check if exec-shield is present.
+AC_CHECK_FILE(/proc/sys/kernel/exec-shield, emacs_cv_execshield=1,
+                                           emacs_cv_execshield=0)
+if test "$emacs_cv_execshield" = 1; then
+   AC_PATH_PROG(SETARCH, setarch, no)
+   AC_SUBST(SETARCH)
+   if test "$setarch" != no; then
+     AC_DEFINE(HAVE_EXECSHIELD, 1, [Define to 1 if this OS has exec shield.])
+   fi
+fi
+
 #### Extract some information from the operating system and machine files.
 
 AC_CHECKING([the machine- and system-dependent files to find out
@@ -2342,7 +2353,7 @@ utimes setrlimit setpgid getcwd getwd shutdown getaddrinfo \
 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm index rindex \
 sendto recvfrom getsockopt setsockopt getsockname getpeername \
 gai_strerror mkstemp getline getdelim mremap memmove fsync bzero \
-memset memcmp memmove difftime memcpy mempcpy mblen mbrlen posix_memalign)
+memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign)
 
 AC_CHECK_HEADERS(sys/un.h)