the () around isspace actually matters

diff --git a/libbb/xgetlarg.c b/libbb/xgetlarg.c
index 0460aad57516875d7dea337392c14cbeb01614ae..f24492beef15267675911ac3c76732f133598104 100644 (file)
--- a/libbb/xgetlarg.c
+++ b/libbb/xgetlarg.c
@@ -21,8 +21,10 @@ extern long bb_xgetlarg(const char *arg, int base, long lower, long upper)
 
        assert(arg!=NULL);
 
-       /* Don't allow leading whitespace. */
-       if (isspace(*arg)) {    /* Use an actual function call for minimal size. */
+       /* Don't allow leading whitespace.
+        * Wrap isspace in () to make sure we call the 
+        * function rather than the macro. */
+       if ((isspace)(*arg)) {
                bb_show_usage();
        }