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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 5a0f19d2b..7a488dd6e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -251,7 +251,7 @@ AC_DEFINE_UNQUOTED([NEED_LIBGCRYPT_VERSION], "$NEED_LIBGCRYPT_VERSION", [require
AC_ARG_ENABLE(gcc-hardening,
AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
[if test x$enableval = xyes; then
- CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
+ CFLAGS="$CFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-all"
CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
CFLAGS="$CFLAGS --param ssp-buffer-size=1"
LDFLAGS="$LDFLAGS -pie"