-retain-symbols-file is not what it seems. Update the makefiles
and configury to use --version-script.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105271 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 8487d94..66f5383 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1039,8 +1039,8 @@
dnl Determine whether the linker supports the -export-dynamic option.
AC_LINK_EXPORT_DYNAMIC
-dnl Determine whether the linker supports the -retain-symbols-file option.
-AC_LINK_RETAIN_SYMBOLS_FILE
+dnl Determine whether the linker supports the --version-script option.
+AC_LINK_VERSION_SCRIPT
dnl Check for libtool and the library that has dlopen function (which must come
dnl before the AC_PROG_LIBTOOL check in order to enable dlopening libraries with
diff --git a/autoconf/m4/link_options.m4 b/autoconf/m4/link_options.m4
index 697abab..251c8a4 100644
--- a/autoconf/m4/link_options.m4
+++ b/autoconf/m4/link_options.m4
@@ -40,14 +40,14 @@
])
#
-# Determine if the system can handle the -retain-symbols-file option being
+# Determine if the system can handle the --version-script option being
# passed to the linker.
#
# This macro is specific to LLVM.
#
-AC_DEFUN([AC_LINK_RETAIN_SYMBOLS_FILE],
-[AC_CACHE_CHECK([for compiler -Wl,-retain-symbols-file option],
- [llvm_cv_link_use_retain_symbols_file],
+AC_DEFUN([AC_LINK_VERSION_SCRIPT],
+[AC_CACHE_CHECK([for compiler -Wl,--version-script option],
+ [llvm_cv_link_use_version_script],
[ AC_LANG_PUSH([C])
oldcflags="$CFLAGS"
@@ -67,18 +67,21 @@
(umask 077 && mkdir "$tmp")
} || exit $?
- echo "main" > "$tmp/exports"
+ echo "{" > "$tmp/export.map"
+ echo " global: main;" >> "$tmp/export.map"
+ echo " local: *;" >> "$tmp/export.map"
+ echo "};" >> "$tmp/export.map"
- CFLAGS="$CFLAGS -Wl,-retain-symbols-file=$tmp/exports"
+ CFLAGS="$CFLAGS -Wl,--version-script=$tmp/export.map"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
- [llvm_cv_link_use_retain_symbols_file=yes],[llvm_cv_link_use_retain_symbols_file=no])
- rm "$tmp/exports"
+ [llvm_cv_link_use_version_script=yes],[llvm_cv_link_version_script=no])
+ rm "$tmp/export.map"
rmdir "$tmp"
CFLAGS="$oldcflags"
AC_LANG_POP([C])
])
-if test "$llvm_cv_link_use_retain_symbols_file" = yes ; then
- AC_SUBST(HAVE_LINK_RETAIN_SYMBOLS_FILE,1)
+if test "$llvm_cv_link_use_version_script" = yes ; then
+ AC_SUBST(HAVE_LINK_VERSION_SCRIPT,1)
fi
])