update-index --split-index: do not split if $GIT_DIR is read only

diff --git a/run-command.h b/run-command.h
index 88460f9bfeeb5c0aa08cff9994ab2b0bfa2ad933..3653bfa6e123ca8497571a2ca1c47200c1b544a2 100644 (file)
--- a/run-command.h
+++ b/run-command.h
@@ -51,6 +51,7 @@ extern int run_hook_le(const char *const *env, const char *name, ...);
 extern int run_hook_ve(const char *const *env, const char *name, va_list args);
 
 LAST_ARG_MUST_BE_NULL
+__attribute__((deprecated))
 extern int run_hook_with_custom_index(const char *index_file, const char *name, ...);
 
 #define RUN_COMMAND_NO_STDIN 1