From 921f4c5dec3df9d6674250f53032e405b1278525 Mon Sep 17 00:00:00 2001
From: Brett Cannon <brett@python.org>
Date: Mon, 31 Oct 2022 18:05:04 -0700
Subject: [PATCH 1/3] gh-98925: Lower marshal recursion depth for WASI For
 (in-development) wasmtime 2.0, the stack depth cost is 6% higher. As the
 default is 2000 and Windows is 1000, split the difference and choose 1500 for
 WASI.

---
 Lib/test/test_marshal.py                                        | 2 ++
 .../2022-10-31-18-03-10.gh-issue-98925.zpdjVd.rst               | 2 ++
 Python/marshal.c                                                | 2 ++
 3 files changed, 6 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Core and Builtins/2022-10-31-18-03-10.gh-issue-98925.zpdjVd.rst

diff --git a/Lib/test/test_marshal.py b/Lib/test/test_marshal.py
index fe4f368bed42f4..54c5a324897d23 100644
--- a/Lib/test/test_marshal.py
+++ b/Lib/test/test_marshal.py
@@ -260,6 +260,8 @@ def test_recursion_limit(self):
         #if os.name == 'nt' and support.Py_DEBUG:
         if os.name == 'nt':
             MAX_MARSHAL_STACK_DEPTH = 1000
+        elif sys.platform == 'wasi':
+            MAX_MARSHAL_STACK_DEPTH = 1500
         else:
             MAX_MARSHAL_STACK_DEPTH = 2000
         for i in range(MAX_MARSHAL_STACK_DEPTH - 2):
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-10-31-18-03-10.gh-issue-98925.zpdjVd.rst b/Misc/NEWS.d/next/Core and Builtins/2022-10-31-18-03-10.gh-issue-98925.zpdjVd.rst
new file mode 100644
index 00000000000000..7c965dc752f70b
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-10-31-18-03-10.gh-issue-98925.zpdjVd.rst	
@@ -0,0 +1,2 @@
+Lower the recursion depth for marshal on WASI to support (in-development)
+wasmtime 2.0.
diff --git a/Python/marshal.c b/Python/marshal.c
index 90a44050918006..5883464c0a5eda 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -34,6 +34,8 @@ module marshal
  */
 #if defined(MS_WINDOWS)
 #define MAX_MARSHAL_STACK_DEPTH 1000
+#elif defined(__WASI__)
+#define MAX_MARSHAL_STACK_DEPTH 1500
 #else
 #define MAX_MARSHAL_STACK_DEPTH 2000
 #endif

From 0aaed2de4b7a0582f4a43e09966826bc7b9cbc75 Mon Sep 17 00:00:00 2001
From: Brett Cannon <brett@python.org>
Date: Mon, 31 Oct 2022 19:08:56 -0700
Subject: [PATCH 2/3] Fix the case-sensitivity for `__wasi__`

---
 Python/marshal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/marshal.c b/Python/marshal.c
index 5883464c0a5eda..2690f55766c83b 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -34,7 +34,7 @@ module marshal
  */
 #if defined(MS_WINDOWS)
 #define MAX_MARSHAL_STACK_DEPTH 1000
-#elif defined(__WASI__)
+#elif defined(__wasi__)
 #define MAX_MARSHAL_STACK_DEPTH 1500
 #else
 #define MAX_MARSHAL_STACK_DEPTH 2000

From 0f487cd614e7b10ddf677e2df07076c958df2a76 Mon Sep 17 00:00:00 2001
From: Brett Cannon <brett@python.org>
Date: Mon, 31 Oct 2022 19:12:20 -0700
Subject: [PATCH 3/3] Ignore `builddir/` in `.gitignore`

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 6934faa91e9874..5055e6d225c796 100644
--- a/.gitignore
+++ b/.gitignore
@@ -116,6 +116,7 @@ PCbuild/win32/
 Tools/unicode/data/
 /autom4te.cache
 /build/
+/builddir/
 /config.cache
 /config.log
 /config.status