add helpers for detecting size_t overflow

diff --git a/environment.c b/environment.c
index 2da7fe2e06ff38b977209d44b7404c93358430af..1cc4aab4eacb629f8fe147c2e20b53c4141587aa 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -235,8 +235,6 @@ void set_git_work_tree(const char *new_work_tree)
        }
        git_work_tree_initialized = 1;
        work_tree = xstrdup(real_path(new_work_tree));
-       if (setenv(GIT_WORK_TREE_ENVIRONMENT, work_tree, 1))
-               die("could not set GIT_WORK_TREE to '%s'", work_tree);
 }
 
 const char *get_git_work_tree(void)