Add warning for C libraries that don't commit to Unicode wchar_t

2012-03-31 14:54:16 -04:00
parent edf6ec9052
commit 4f79778ca5
1 changed files with 5 additions and 0 deletions
@@ -166,6 +166,11 @@ AC_CHECK_DECL([IP_MTU_DISCOVER],
     [Define if IP_MTU_DISCOVER is a valid sockopt.])],
  , [[#include <netinet/ip.h>]])

+AC_CHECK_DECL([__STDC_ISO_10646__],
+  [],
+  [AC_MSG_WARN([C library doesn't advertise wchar_t is Unicode (OS X works anyway with workaround).])],
+  [[#include <wchar.h>]])
+
 # Checks for protobuf
 PKG_CHECK_MODULES([protobuf], [protobuf])