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-rw-r--r--sysdeps/generic/strtol.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/generic/strtol.c b/sysdeps/generic/strtol.c
index 7e174d488b..28806083cf 100644
--- a/sysdeps/generic/strtol.c
+++ b/sysdeps/generic/strtol.c
@@ -188,7 +188,8 @@ extern int errno;
# define TOUPPER(Ch) towupper (Ch)
# endif
# else
-# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
+# if defined _LIBC \
+ || defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
# define IN_CTYPE_DOMAIN(c) 1
# else
# define IN_CTYPE_DOMAIN(c) isascii(c)