Add tup patch for working with wine

README.md

@@ -113,6 +113,8 @@ Pokemon sprite filenames are in a 1-to-1 correspondence with the Pokemon's name,
 
 - Tup, like Git, tracks files, not directories. If you `readdir()` and forget to declare a dependency it won't catch it, like it would for `read()`. You can work around this by having build tools `stat()` any filenames they acquire.
 
+- Using DeflOpt requires a custom build of tup. Checkout the repo and `git am vendor/tup-remove-fuse-context-check.patch`, and run with environment variable `TUP_NO_NAMESPACING=1`.
+
 - DeflOpt performance can suffer under Wine due to repeatedly starting/shutting down `wineserver`. You can specify the server timeout with `wineserver -p<n>`, where `n` is the # of seconds (default 3). If you don't specify `n` it never shuts down. Sometimes wine will hang so you may want to instead pick something high like 30 seconds.
 
 ## License

vendor/tup-remove-fuse-context-check.patch

@@ -0,0 +1,31 @@
+From aa0d590380db26d1669fb6368328c71cd9f389d1 Mon Sep 17 00:00:00 2001
+From: Christopher Monsanto <chris@monsan.to>
+Date: Tue, 15 Sep 2020 06:05:50 -0400
+Subject: [PATCH] Remove fuse context check
+
+This allows using wine in build rules.
+---
+ src/tup/server/fuse_fs.c | 7 -------
+ 1 file changed, 7 deletions(-)
+
+diff --git a/src/tup/server/fuse_fs.c b/src/tup/server/fuse_fs.c
+index b8ff82c0..7867b18b 100644
+--- a/src/tup/server/fuse_fs.c
++++ b/src/tup/server/fuse_fs.c
+@@ -290,13 +290,6 @@ static int context_check(void)
+ 		return 0;
+ 	}
+ 
+-	if(ourpgid != pgid) {
+-		if(server_debug_enabled()) {
+-			fprintf(stderr, "tup fuse warning: Process pid=%i, uid=%i, gid=%i is trying to access the tup server's fuse filesystem.\n",
+-					fuse_get_context()->pid, fuse_get_context()->uid, fuse_get_context()->gid);
+-		}
+-		return -1;
+-	}
+ 	return 0;
+ }
+ 
+-- 
+2.25.1
+