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-rw-r--r--newlib/libc/include/ctype.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/newlib/libc/include/ctype.h b/newlib/libc/include/ctype.h
index 224b703ad..7c4f28adf 100644
--- a/newlib/libc/include/ctype.h
+++ b/newlib/libc/include/ctype.h
@@ -57,9 +57,9 @@ extern _CONST char _ctype_[] __declspec(dllimport);
slightly slower */
#ifdef __GNUC__
# define toupper(c) \
- ({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
+ __extension__ ({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
# define tolower(c) \
- ({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
+ __extension__ ({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
#endif
#ifndef __STRICT_ANSI__