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-rw-r--r--b.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/b.c b/b.c
index a4a46acbf91a..97dc32a05730 100644
--- a/b.c
+++ b/b.c
@@ -748,7 +748,11 @@ struct charclass {
} charclasses[] = {
{ "alnum", 5, isalnum },
{ "alpha", 5, isalpha },
+#ifndef HAS_ISBLANK
{ "blank", 5, isspace }, /* was isblank */
+#else
+ { "blank", 5, isblank },
+#endif
{ "cntrl", 5, iscntrl },
{ "digit", 5, isdigit },
{ "graph", 5, isgraph },