Silence a warning in file-mmap-posix.c.

diff --git a/mono/metadata/file-mmap-posix.c b/mono/metadata/file-mmap-posix.c
index 4b7fa7a8bfe50626cd1ad6a63b8fd7f76314085e..2fc7fb5ed394bf5965995f232554ffd35605fb00 100644 (file)
--- a/mono/metadata/file-mmap-posix.c
+++ b/mono/metadata/file-mmap-posix.c
@@ -340,7 +340,7 @@ open_memory_map (MonoString *mapName, int mode, gint64 *capacity, int access, in
                }
 
                unlink (file_name);
-               ftruncate (fd, (off_t)*capacity);
+               int unused G_GNUC_UNUSED = ftruncate (fd, (off_t)*capacity);
 
                handle = g_new0 (MmapHandle, 1);
                handle->ref_count = 1;