pkg: fix sysroot_dir logic for github 213

libpkgconf/pkg.c

@@ -414,15 +414,12 @@ pkgconf_pkg_new_from_file(pkgconf_client_t *client, const char *filename, FILE *
 	pkgconf_tuple_add(client, &pkg->vars, "pcfiledir", pc_filedir_value, true);
 	free(pc_filedir_value);
 
-	/* If pc_filedir is outside of sysroot_dir, clear pc_filedir
+	/* If pc_filedir is outside of sysroot_dir, override sysroot_dir for this
+	 * package.
 	 * See https://github.com/pkgconf/pkgconf/issues/213
 	 */
 	if (client->sysroot_dir && strncmp(pkg->pc_filedir, client->sysroot_dir, strlen(client->sysroot_dir)))
-	{
-		free(client->sysroot_dir);
-		client->sysroot_dir = NULL;
-		pkgconf_client_set_sysroot_dir(client, NULL);
-	}
+		pkgconf_tuple_add(client, &pkg->vars, "pc_sysrootdir", "", false);
 
 	/* make module id */
 	if ((idptr = strrchr(pkg->filename, PKG_DIR_SEP_S)) != NULL)

libpkgconf/tuple.c

@@ -218,10 +218,6 @@ char *
 pkgconf_tuple_find(const pkgconf_client_t *client, pkgconf_list_t *list, const char *key)
 {
 	pkgconf_node_t *node;
-	char *res;
-
-	if ((res = pkgconf_tuple_find_global(client, key)) != NULL)
-		return res;
 
 	PKGCONF_FOREACH_LIST_ENTRY(list->head, node)
 	{
@@ -231,7 +227,7 @@ pkgconf_tuple_find(const pkgconf_client_t *client, pkgconf_list_t *list, const c
 			return tuple->value;
 	}
 
-	return NULL;
+	return pkgconf_tuple_find_global(client, key);
 }
 
 /*