[Qemu-devel] [PATCH 2/3] build-sys: check static linking of UBSAN

[Marc-André Lureau]

Signed-off-by: Marc-André Lureau <address@hidden>
---
 configure | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 41d8a2666c..beb0de6a77 100755
--- a/configure
+++ b/configure
@@ -5247,7 +5247,15 @@ fi
 ##########################################
 # checks for sanitizers
 
-write_c_skeleton
+# we could use a simple skeleton for flags chekcs, but this also
+# detect the static linking issue of ubsan, see also:
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
+cat > $TMPC << EOF
+#include <stdint.h>
+int main(void) {
+  return INT32_MIN / -1;
+}
+EOF
 
 have_asan=no
 have_ubsan=no
-- 
2.16.1.73.g5832b7e9f2