Fix passing plain char into ctype.h is* functions

Change-Id: I3d1fd585ba7f0bd8f6d074f0d2b86a20fa366072
2017-03-22 21:56:57 +01:00 · 2017-03-22 21:56:57 +01:00 · cea11039b2
commit cea11039b2
parent cb643b44ca
1 changed files with 2 additions and 1 deletions
--- a/solenv/bin/concat-deps.c
+++ b/solenv/bin/concat-deps.c
@ -795,7 +795,8 @@ static inline void print_fullpaths(char* line)
        end = token;
        /* hard to believe that in this day and age drive letters still exist */
        if (*end && (':' == *(end+1)) &&
-            (('\\' == *(end+2)) || ('/' == *(end+2))) && isalpha(*end))
+            (('\\' == *(end+2)) || ('/' == *(end+2))) &&
+            isalpha((unsigned char)*end))
        {
            end = end + 3; /* only one cross, err drive letter per filename */
        }