1 files changed, 2 insertions, 2 deletions
diff --git a/Configure b/Configure
index 7fa1804d0d..a1bc83554d 100755
--- a/Configure
+++ b/Configure
@@ -15068,9 +15068,9 @@ $cat >isblank.c <<'EOCP'
 int main() {
 	int c = ' ';
 	if (isblank(c))
-		exit(0);
+		return 0 ;
 	else
-		exit(1);
+		return 1 ;
 }
 EOCP
 if $cc $ccflags $ldflags -o isblank isblank.c $libs >/dev/null 2>&1 ; then