* lib: centralize MAX_PATH stuff

lib/mu-util.h

@@ -27,6 +27,16 @@
 #include <dirent.h>
 #include <sys/stat.h> /* for mode_t */
 
+/* hopefully, this should get us a sane PATH_MAX */
+#include <limits.h>
+/* not all systems provide PATH_MAX in limits.h */
+#ifndef PATH_MAX
+#include <sys/param.h>
+#ifndef PATH_MAX
+#define PATH_MAX MAXPATHLEN
+#endif /*!PATH_MAX*/
+#endif /*PATH_MAX*/
+
 G_BEGIN_DECLS
 
 /**