--- a/util.c	Tue May 01 23:55:48 2018 -0700
+++ b/util.c	Wed May 02 00:03:22 2018 -0700
@@ -303,11 +303,11 @@
 	return is_path_sep(path[0]);
 }
 
-char * basename_no_extension(char *path)
+char * basename_no_extension(const char *path)
 {
-	char *lastdot = NULL;
-	char *lastslash = NULL;
-	char *cur;
+	const char *lastdot = NULL;
+	const char *lastslash = NULL;
+	const char *cur;
 	for (cur = path; *cur; cur++)
 	{
 		if (*cur == '.') {
@@ -365,10 +365,10 @@
 	return 0;
 }
 
-char * path_dirname(char *path)
+char * path_dirname(const char *path)
 {
-	char *lastslash = NULL;
-	char *cur;
+	const char *lastslash = NULL;
+	const char *cur;
 	for (cur = path; *cur; cur++)
 	{
 		if (is_path_sep(*cur)) {