win32: pass NULL to spawnve, not environ

Building busybox-w32 for use with UCRT results in mysterious
failures.  (GitHub issue #234)

These are somehow related to the environment values passed to
spawnve.  In several places the global environ pointer was being
passed to spawnve so the child would inherit its environment from
the parent.  This can also be achieved by passing a NULL pointer.
This prevents the failures in at least some cases and also makes
the binary smaller.

1 files changed, 1 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 3e741d7d2..ad1e5ba7e 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -16016,7 +16016,7 @@ spawn_forkshell(struct forkshell *fs, struct job *jp, union node *n, int mode)
         new->nprocs = jp == NULL ? 0 : jp->nprocs;
         sprintf(buf, "%p", new->hMapFile);
         argv[2] = buf;
-        ret = spawnve(P_NOWAIT, bb_busybox_exec_path, (char *const *)argv, environ);
+        ret = spawnve(P_NOWAIT, bb_busybox_exec_path, (char *const *)argv, NULL);
         CloseHandle(new->hMapFile);
         UnmapViewOfFile(new);
         if (ret == -1) {