another warning destroyed

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@5731 ec53bebd-3082-4978-b11e-865c3cabbd6b

diff --git a/include/bits.c b/include/bits.c
index 616e804324e67cb438ced7b2d675e312f88b9e9d..a2effaf0ca4d6deac80b0ba3fbda56aad178892f 100644 (file)
--- a/include/bits.c
+++ b/include/bits.c
@@ -130,7 +130,7 @@ int main(int argc, char **argv)
        hb = malloc(strlen(fn) + 5);
        sprintf(hb, "__%s__", fn);
        for(p = hb; *p; p++){
-           if(!isalnum(*p))
+           if(!isalnum((unsigned char)*p))
                *p = '_';
        }
        f = fopen(argv[1], "w");