The check for a broken GCC -Wlogical-op implemententation
was written under the wrong assumption that unknown warning
options would be gracefully ignored.
Thanks to Eric Blake and Daniel Berrange for pointing that
out.
Signed-off-by: Viktor Mihajlovski <mihajlov@xxxxxxxxxxxxxxxxxx>
---
configure.ac | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 20caa92..828ae01 100644
--- a/configure.ac
+++ b/configure.ac
@@ -260,7 +260,13 @@ dnl which is the case with a certain range of GCC versions
AC_MSG_CHECKING([whether GCC -Wlogical-op is broken])
save_CFLAGS="$CFLAGS"
-CFLAGS="-O2 -Wlogical-op -Werror"
+for w_opt in $WARN_CFLAGS; do
+ case $w_opt in
+ "-Wlogical-op" | "-Werror" )
+ CFLAGS="$CFLAGS $w_opt"
+ ;;
+ esac
+done
AC_TRY_COMPILE([#include <string.h>],
[const char *haystack;
--
1.7.9.5
--
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