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| author | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 07:50:58 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2012-11-21 12:36:21 -0800 |
| commit | 0fc844f8a771cddcad68c9e58b59e065db032cd3 (patch) | |
| tree | 00f5c7f06f33f00fca83c0aeeff00be4951ed664 /configure.in | |
| parent | 163abe1837d2ff89be00b8a675e45d478f509df6 (diff) | |
| download | glibc-0fc844f8a771cddcad68c9e58b59e065db032cd3.tar.gz glibc-0fc844f8a771cddcad68c9e58b59e065db032cd3.tar.xz glibc-0fc844f8a771cddcad68c9e58b59e065db032cd3.zip | |
Check if -z global works
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/configure.in b/configure.in index a7f7198818..2ec07b1e43 100644 --- a/configure.in +++ b/configure.in @@ -1561,6 +1561,23 @@ LIBC_LINKER_FEATURE([-z execstack], [-Wl,-z,execstack], [libc_cv_z_execstack=yes], [libc_cv_z_execstack=no]) AC_SUBST(libc_cv_z_execstack) +AC_CACHE_CHECK(for -z global, + libc_cv_z_global, [dnl +cat > conftest.c <<EOF +int _start (void) { return 42; } +EOF +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -fPIC -shared -o conftest.so conftest.c + -Wl,-z,global -nostdlib + 1>&AS_MESSAGE_LOG_FD]) +then + libc_cv_z_global=yes +else + libc_cv_z_global=no +fi +rm -f conftest*]) +AC_SUBST(libc_cv_z_global) + AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no]) ]) |