1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/isysroot-1.c b/gcc/testsuite/gcc.dg/cpp/isysroot-1.c
new file mode 100644
index 000000000..7263ce415
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/isysroot-1.c
@@ -0,0 +1,10 @@
+/* { dg-options "-isysroot ${srcdir}/gcc.dg/cpp" } */
+/* { dg-do compile  { target *-*-darwin* } } */
+
+#include <stdio.h>
+int main()
+{
+  /* Special stdio.h supplies function foo.  */
+  void (*x)(void) = foo;
+  return 0;
+}