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-rw-r--r--dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/dir.c b/dir.c
index 37cf332..49002fc 100644
--- a/dir.c
+++ b/dir.c
@@ -69,7 +69,7 @@ char *strchr _((char*,char));
#define FNM_NOMATCH 1
#define FNM_ERROR 2
-#define downcase(c) (nocase && isupper(c) ? tolower(c) : (c))
+#define downcase(c) (nocase && ISUPPER(c) ? tolower(c) : (c))
#if defined DOSISH
#define isdirsep(c) ((c) == '/' || (c) == '\\')