checkout_merged(): squelch false warning from some gcc

diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index 3c78bda5664e20086bcd500105b039d6241e3782..0d2a3e9fa2023cc673f1f6d9e17d3deeca1c7e9d 100644 (file)
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -3,6 +3,7 @@
 #include "commit.h"
 #include "log-tree.h"
 #include "builtin.h"
+#include "submodule.h"
 
 static struct rev_info log_tree_opt;
 
@@ -112,6 +113,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
        int read_stdin = 0;
 
        init_revisions(opt, prefix);
+       gitmodules_config();
        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
        opt->abbrev = 0;
        opt->diff = 1;