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authorebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2006-12-04 11:10:38 +0000
committerebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2006-12-04 11:10:38 +0000
commit72a430e4dd7cfa5d104dfc1eb9f76c988bd83b0e (patch)
tree38c687216b40ee374097b4fbb790fb3131adfdc3 /config/tls.m4
parent497f2858ac9b8d97b197b4657b4145ae0c7534a8 (diff)
downloadgcc-72a430e4dd7cfa5d104dfc1eb9f76c988bd83b0e.tar.gz
config/
* tls.m4 (GCC_CHECK_TLS): Do not test TLS with static linking if static linking doesn't even work. libgomp/ * configure: Regenerate. libmudflap/ * configure: Regenerate. libjava/ * configure: Regenerate. libstdc++-v3/ * configure: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119487 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'config/tls.m4')
-rw-r--r--config/tls.m410
1 files changed, 6 insertions, 4 deletions
diff --git a/config/tls.m4 b/config/tls.m4
index b66b6d758ce..41f11ab3ea5 100644
--- a/config/tls.m4
+++ b/config/tls.m4
@@ -5,12 +5,14 @@ AC_DEFUN([GCC_CHECK_TLS], [
have_tls, [
AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
[dnl If the test case passed with dynamic linking, try again with
- dnl static linking. This fails at least with some older Red Hat
- dnl releases.
+ dnl static linking, but only if static linking is supported (not
+ dnl on Solaris 10). This fails with some older Red Hat releases.
save_LDFLAGS="$LDFLAGS"
LDFLAGS="-static $LDFLAGS"
- AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
- [have_tls=yes], [have_tls=no], [])
+ AC_LINK_IFELSE([int main() { return 0; }],
+ AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
+ [have_tls=yes], [have_tls=no],[]),
+ [have_tls=yes])
LDFLAGS="$save_LDFLAGS"],
[have_tls=no],
[AC_LINK_IFELSE([__thread int a; int b; int main() { return a = b; }],