@@ -4853,6 +4853,20 @@ EOF
fi
##########################################
+# check for _Static_assert()
+
+have_static_assert=no
+cat > $TMPC << EOF
+_Static_assert(1, "success");
+int main(void) {
+ return 0;
+}
+EOF
+if compile_prog "" "" ; then
+ have_static_assert=yes
+fi
+
+##########################################
# End of CC checks
# After here, no more $cc or $ld runs
@@ -5848,6 +5862,10 @@ if test "$have_sysmacros" = "yes" ; then
echo "CONFIG_SYSMACROS=y" >> $config_host_mak
fi
+if test "$have_static_assert" = "yes" ; then
+ echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
+fi
+
# Hold two types of flag:
# CONFIG_THREAD_SETNAME_BYTHREAD - we've got a way of setting the name on
# a thread we have a handle to
@@ -82,7 +82,9 @@
int:(x) ? -1 : 1; \
}
-#ifdef __COUNTER__
+#if defined(CONFIG_STATIC_ASSERT)
+#define QEMU_BUILD_BUG_ON(x) _Static_assert(!(x), "not expecting: " #x)
+#elif defined(__COUNTER__)
#define QEMU_BUILD_BUG_ON(x) typedef QEMU_BUILD_BUG_ON_STRUCT(x) \
glue(qemu_build_bug_on__, __COUNTER__) __attribute__((unused))
#else