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-rw-r--r--stdio-common/tst-printf-bz18872.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/stdio-common/tst-printf-bz18872.sh b/stdio-common/tst-printf-bz18872.sh
index 3b283f49a6..ade4b61f85 100644
--- a/stdio-common/tst-printf-bz18872.sh
+++ b/stdio-common/tst-printf-bz18872.sh
@@ -31,7 +31,11 @@ cat <<'EOF'
Compile do_test without optimization: GCC 4.9/5.0/6.0 takes a long time
to build this source. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67396 */
+#ifdef __clang__
+__attribute__ ((optnone))
+#else
__attribute__ ((optimize ("-O0")))
+#endif
int do_test (void)
{
mtrace ();