string: undef basename, dirname before defining

Helps with testing, otherwise OS defs conflict with ours.

diff --git a/usual/string.h b/usual/string.h
index db9c8931a8c1cbe3665b444002ed5a905ca3101a..80f5f356238e5f15b11e76ceb14f519fad9a3f09 100644 (file)
--- a/usual/string.h
+++ b/usual/string.h
@@ -88,11 +88,13 @@ static inline int flsll(long long x) { _FLS(ll, long long); }
 
 
 #ifndef HAVE_BASENAME
+#undef basename
 #define basename(a) usual_basename(a)
 const char *basename(const char *path);
 #endif
 
 #ifndef HAVE_DIRNAME
+#undef dirname
 #define dirname(a) usual_dirname(a)
 const char *dirname(const char *path);
 #endif