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-rw-r--r--libfonts_parse_order__.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libfonts_parse_order__.c b/libfonts_parse_order__.c
index 349347e..906c4a9 100644
--- a/libfonts_parse_order__.c
+++ b/libfonts_parse_order__.c
@@ -37,7 +37,7 @@ main(void)
ASSERT(res == C);\
strcpy(buf, S);\
for (i = 0; buf[i]; i++)\
- buf[i] = toupper(buf[i]);\
+ buf[i] = (char)toupper(buf[i]);\
res = 999;\
ASSERT(libfonts_parse_order__(&res, buf) == 1);\
ASSERT(res == C);\