install: allow paths like LookupPath.generator to be NULL

Fixes #3047.
2016-04-16 23:08:23 -04:00
parent 3ae5990c6e
commit 24737c2917
3 changed files with 24 additions and 14 deletions
@@ -48,6 +48,10 @@ bool path_equal(const char *a, const char *b) _pure_;
 bool path_equal_or_files_same(const char *a, const char *b);
 char* path_join(const char *root, const char *path, const char *rest);

+static inline bool path_equal_ptr(const char *a, const char *b) {
+        return !!a == !!b && (!a || path_equal(a, b));
+}
+
 /* Note: the search terminates on the first NULL item. */
 #define PATH_IN_SET(p, ...)                                     \
        ({                                                      \