unpack-trees: allow Porcelain to give different error messages

diff --git a/environment.c b/environment.c
index 55c252706317818db64af8ff3fbfde6cd23e3488..4fcb471248fb5276a68b9f86a77a2f5cde7dd884 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -11,6 +11,7 @@
 
 char git_default_email[MAX_GITNAME];
 char git_default_name[MAX_GITNAME];
+int user_ident_explicitly_given;
 int trust_executable_bit = 1;
 int quote_path_fully = 1;
 int has_symlinks = 1;