X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fsource-file.cc;h=7667b2f810d21973e8ed757522ddf06bb3cbe794;hb=62a502b7a020a0414058b7bfda405f644e8261f5;hp=90bc5fcabde4a01ecfd8d0e6a55e09d8aa1621f5;hpb=00e3e15364b9d3c94cda1bcab9f889bb95f6832d;p=lilypond.git

diff --git a/lily/source-file.cc b/lily/source-file.cc
index 90bc5fcabd..7667b2f810 100644
--- a/lily/source-file.cc
+++ b/lily/source-file.cc
@@ -7,15 +7,20 @@
   Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
+#if GCC_MAJOR < 4
+#define _GLIBCXX_HAVE_MBSTATE_T
+#include <wchar.h>
+#endif /* GCC_MAJOR < 4 */
+
 #include "source-file.hh"
 
 #include "config.hh"
 
 #if HAVE_UTF8_WCHAR_H
 #include <utf8/wchar.h>  /* mbrtowc */
-#else
+#else /* !HAVE_UTF8_WCHAR_H */
 #include <cwchar> /* mbrtowc */
-#endif
+#endif /* HAVE_UTF8_WCHAR_H */
 
 #include <cstdio>