Makefile: introduce SANE_TOOL_PATH for prepending required elements to PATH

diff --git a/wrapper.c b/wrapper.c
index d8efb1365a01104db568633fa8f6aef0c67b4cd1..7eb3218ee995991881252e4bb599452d7214ae4f 100644 (file)
--- a/wrapper.c
+++ b/wrapper.c
@@ -289,3 +289,19 @@ int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1)
        safe_create_leading_directories(name);
        return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
 }
+
+int unlink_or_warn(const char *file)
+{
+       int rc = unlink(file);
+
+       if (rc < 0) {
+               int err = errno;
+               if (ENOENT != err) {
+                       warning("unable to unlink %s: %s",
+                               file, strerror(errno));
+                       errno = err;
+               }
+       }
+       return rc;
+}
+