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jak-project/third-party/curl/tests/data/test421
T
Alexander J. Semenuk 5d5e35fb9b fix: Windows toolchain compatibility (curl 8.21 re-vendor, endless reconfigure loop) (#4355)
## Problem

Windows builds break with a current local toolchain (Scoop LLVM 22.1.8,
CMake 4.4.0, VS 2026), in two independent ways:

1. The build stops at curl's deliberate guard: `#error "no non-blocking
method was found/used/set"` in `third-party/curl/lib/nonblock.c`.
2. From the second configure onward, `cmake --build` re-runs CMake in an
endless loop (observed 42 consecutive reconfigure cycles in a single
build). Likely the same mechanism behind the "endlessly building" VS
2026 note in `docs/setup/dev/vs.md`.

## Root cause

1. `third-party/curl/CMake/CurlTests.c` passes `int *` to
`ioctlsocket()`, whose third parameter is `u_long *`. Clang 22 promotes
`-Wincompatible-pointer-types` to a hard error in C, so the
`HAVE_IOCTLSOCKET_FIONBIO` try_compile silently fails and
`curl_config.h` never defines it. Upstream CI does not see this because
the windows-2022 runner image ships an older LLVM. GCC 14 promotes the
same warning to a hard error, which is very likely the `CurlTests.c.obj`
failure reported from MSYS2 in open-goal/jak-project#3551. Upstream curl
hit the identical problem with GCC 14 and fixed the probe in curl 8.8.0
(curl/curl#13578).
2. The root CMakeLists copies the build tree's `compile_commands.json`
into `<src>/build/` for clangd using `configure_file()`, which registers
its input as a configure dependency. CMake rewrites
`compile_commands.json` late in every generation, after
`CTestTestfile.cmake` and `cmake_install.cmake` (outputs of the same
Ninja regen rule), so once the dependency is registered the rule is
deterministically dirty and every `ninja` invocation re-runs CMake. A
pristine first configure is safe (the file does not exist yet, so the
`if(EXISTS ...)` guard skips the copy), which is why the loop looks
machine- or IDE-specific.

## Fix

1. Per review, re-vendor `third-party/curl` at the `curl-8_21_0` tag
(previously `curl-8_3_0`), which carries the upstream probe fix plus two
years of upstream development; `vendor.yaml` updated to match.
Adjustments the version jump forced:
- curl 8.15 removed the native macOS Secure Transport backend
(`CURL_USE_SECTRANSP`), so macOS now builds curl against OpenSSL like
Linux. The two macOS workflows install Homebrew `openssl@3` and export
`OPENSSL_ROOT_DIR` (keg-only), and the macOS setup docs gained the same
two lines.
- `CURL_BROTLI` / `CURL_ZSTD` switched to AUTO-detection in curl 8.10;
pinned OFF to keep the previous no-compression behavior and avoid
silently linking whatever the CI images happen to have.
- curl's new top-level `BUILD_EXAMPLES` cache option (default ON) leaked
into discord-rpc's identically named option and broke configure at a
nonexistent `examples/send-presence` directory; pinned OFF ahead of the
third-party subdirectories.

The diff is dominated by the mechanical tag-tree swap under
`third-party/curl` (linguist-vendored, collapsed in review). The
hand-written changes are `CMakeLists.txt`, the two macOS workflows,
`docs/setup/system/macos.md`, and `vendor.yaml`.
2. Swap `configure_file()` for `file(COPY ...)`: the same clangd copy
with no configure dependency registered. (`file(COPY_FILE ...
ONLY_IF_DIFFERENT)` would be cleaner still but requires CMake 3.21,
above the declared `cmake_minimum_required(VERSION 3.10)`.)

## Test plan

- [x] Fresh `cmake --preset Release-windows-clang` (LLVM 22, no cache
seeding) completes and logs `Enabled SSL backends: Schannel`; the
FIONBIO probe passes without the previous `#error`
- [x] Full Windows Release build from scratch in the branch worktree
(all 1422 targets)
- [x] goalc-test suite: 1509 passed, 0 failed
- [x] Second consecutive configure with `compile_commands.json` present:
the regen rule in `build.ninja` has no `compile_commands.json` input;
`<src>/build/compile_commands.json` is still refreshed for clangd
- [x] Repeated `ninja` invocations after a full build no longer re-run
CMake
- [x] macOS Intel and ARM CI green (first exercise of the OpenSSL
backend switch)

---

I work off a self-hosted forge, so this GitHub account is quiet; the
configure logs and ninja dirty-node traces from the investigation are
available if anyone wants the raw data.

(AI-assisted)
2026-07-27 19:19:18 -04:00

84 lines
2.5 KiB
XML
Vendored
Generated

<?xml version="1.0" encoding="US-ASCII"?>
<testcase>
<info>
<keywords>
header_json
</keywords>
</info>
# Server-side
<reply>
<data crlf="headers">
HTTP/1.1 200 OK
server: nginx
date: Tue, 07 Mar 2023 15:14:41 GMT
content-type: application/json
content-length: 6
vary: Accept-Encoding
access-control-allow-origin: *
vary: Accept-Encoding
referrer-policy: strict-origin-when-cross-origin
access-control-allow-methods: GET, POST, PUT, DELETE, OPTIONS
access-control-max-age: 1728000
access-control-allow-headers: Authorization, Content-Type, AuthorizationOauth, X-EARLY-ACCESS
access-control-expose-headers:%SP
vary: Accept
etag: W/"2678f9ab2ba550d164e7cc014aefd31e"
cache-control: max-age=0, private, must-revalidate
x-request-id: 375b343b3d2ecf9b442c0daf00fc4a9a
strict-transport-security: max-age=31536000; includeSubDomains
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
referrer-policy: strict-origin-when-cross-origin
feature-policy: accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
-foo-
</data>
</reply>
# Client-side
<client>
<server>
http
</server>
<name>
HTTP GET multiple headers and %{header_json}
</name>
<command>
http://%HOSTIP:%HTTPPORT/%TESTNUMBER -w '%{stderr}%{header_json}\n' -s
</command>
</client>
# Verify data after the test has been "shot"
<verify>
<protocol crlf="headers">
GET /%TESTNUMBER HTTP/1.1
Host: %HOSTIP:%HTTPPORT
User-Agent: curl/%VERSION
Accept: */*
</protocol>
<stderr mode="text">
{"server":["nginx"],
"date":["Tue, 07 Mar 2023 15:14:41 GMT"],
"content-type":["application/json"],
"content-length":["6"],
"vary":["Accept-Encoding","Accept-Encoding","Accept"],
"access-control-allow-origin":["*"],
"referrer-policy":["strict-origin-when-cross-origin","strict-origin-when-cross-origin"],
"access-control-allow-methods":["GET, POST, PUT, DELETE, OPTIONS"],
"access-control-max-age":["1728000"],
"access-control-allow-headers":["Authorization, Content-Type, AuthorizationOauth, X-EARLY-ACCESS"],
"access-control-expose-headers":[""],
"etag":["W/\"2678f9ab2ba550d164e7cc014aefd31e\""],
"cache-control":["max-age=0, private, must-revalidate"],
"x-request-id":["375b343b3d2ecf9b442c0daf00fc4a9a"],
"strict-transport-security":["max-age=31536000; includeSubDomains"],
"x-content-type-options":["nosniff"],
"x-xss-protection":["1; mode=block"],
"feature-policy":["accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'"]
}
</stderr>
</verify>
</testcase>