diff --git a/src/im.c b/src/im.c
index c528ff018..477f93842 100644
--- a/src/im.c
+++ b/src/im.c
@@ -572,9 +572,11 @@ static int charmap_load(CHARMAP* cm, const char* path)
           size_t i = 0;
 
 #ifndef __BEOS__
+#if defined __GLIBC__ && __GLIBC__ == 2 && __GLIBC_MINOR__ >=2 || __GLIBC__ > 2 || __APPLE__
           fwprintf(stderr, L"Unable to add sequence '%ls', unicode ", buf);
           for(i = 0; i < wcslen(unicode); i++) fwprintf(stderr, L"%04X ", (int)unicode[i]);
           fwprintf(stderr, L"in section %d\n", section);
+#endif
 #endif
 
           error_code = 1;