travis-ci: record and skip successfully built trees

diff --git a/builtin/prune.c b/builtin/prune.c
index f0e2bff04c797b630616bddaefa742e736a423a9..c378690545b27b7e4753e0f919f3ea6626b0eae9 100644 (file)
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -68,7 +68,7 @@ static int prune_cruft(const char *basename, const char *path, void *data)
        return 0;
 }
 
-static int prune_subdir(int nr, const char *path, void *data)
+static int prune_subdir(unsigned int nr, const char *path, void *data)
 {
        if (!show_only)
                rmdir(path);