No need to directly #include (already done from ). diff -ur cjkutils-4.8.2.orig/cjklatex/cjklatex.c cjkutils-4.8.2/cjklatex/cjklatex.c --- cjkutils-4.8.2.orig/cjklatex/cjklatex.c 2010-12-19 16:25:43.000000000 +0100 +++ cjkutils-4.8.2/cjklatex/cjklatex.c 2011-09-12 13:44:29.000000000 +0200 @@ -36,10 +36,6 @@ #include #include -#if defined(WIN32) && !defined(__MINGW32__) -#include -#endif - static const char *cjklatex_version_string = "1.0"; static const char *usage_str[] = {