1 files changed, 6 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/usr.bin/xlint/lint1/d_gcc_extension.c b/contrib/netbsd-tests/usr.bin/xlint/lint1/d_gcc_extension.c
new file mode 100644
index 000000000000..d8bd8f5fe944
--- /dev/null
+++ b/contrib/netbsd-tests/usr.bin/xlint/lint1/d_gcc_extension.c
@@ -0,0 +1,6 @@
+/* extension */
+void a(void) {
+    double __logbw = 1;
+    if (__extension__(({ __typeof((__logbw)) x_ = (__logbw); !__builtin_isinf((x_)) && !__builtin_isnan((x_)); })))
+	__logbw = 1;
+}