1 files changed, 13 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index e6278d32e5..508d295ebc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -435,7 +435,19 @@ AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wold-style-definition, C)
 # some Xcode versions that came with Mac OS X 10.5) complain about
 # that.
 #
-AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wshadow, C)
+AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wshadow, C,
+  [
+extern int atoi(char *p);
+
+int
+foo(char *p)
+{
+	int (*fptr)(char *p) = atoi;
+
+	return fptr(p) * 2;
+}
+  ],
+  [warns about variables in function declarations shadowing other variables])
 AC_WIRESHARK_GCC_CFLAGS_CHECK(-Wno-error=unused-but-set-variable)    ##  for now
 #
 # Use the faster pre gcc 4.5 floating point precision if available;