gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / lib / mbchar.h

diff --git a/lib/mbchar.h b/lib/mbchar.h
index 327c957..0646cf4 100644 (file)
--- a/lib/mbchar.h
+++ b/lib/mbchar.h
@@ -156,6 +156,9 @@
 #include <wchar.h>
 #include <wctype.h>
 
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
 _GL_INLINE_HEADER_BEGIN
 #ifndef MBCHAR_INLINE
 # define MBCHAR_INLINE _GL_INLINE