Files
jak-project/third-party/curl/tests/data/test646
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

110 lines
2.6 KiB
XML
Vendored
Generated

<?xml version="1.0" encoding="US-ASCII"?>
<testcase>
<info>
<keywords>
SMTP
MULTIPART
</keywords>
</info>
# Server-side
<reply>
</reply>
# Client-side
<client>
<features>
Mime
</features>
<server>
smtp
</server>
<name>
SMTP multipart using mime API
</name>
<stdin crlf="yes">
From: different
To: another
body
</stdin>
<command>
smtp://%HOSTIP:%SMTPPORT/%TESTNUMBER
--mail-rcpt recipient@example.com
--mail-from sender@example.com
-F "=(;type=multipart/alternative"
-F "= %LTbody%GTThis is the html version%LT/body%GT;headers=X-test1: this is a header;type=text/html;headers=X-test2: this is another header "
-F "=This is the plain text version;headers=@%LOGDIR/headers%TESTNUMBER"
-F "=)"
-F "=@%LOGDIR/test%TESTNUMBER.txt;headers=%LT%LOGDIR/headers%TESTNUMBER"
-H "From: different"
-H "To: another"
-H "Reply-To: %LTfollowup@example.com%GT"
</command>
<file1 name="%LOGDIR/test%TESTNUMBER.txt">
This is an attached file.
It may contain any type of data.
</file1>
<file2 name="%LOGDIR/headers%TESTNUMBER">
# This line is a comment
X-fileheader1: This is a header from a file%SP%CR
# This line is another comment. It precedes a folded header.
X-fileheader2: This is #a
folded header
</file2>
</client>
# Verify data after the test has been "shot"
<verify>
<strippart>
s/^--------------------------[A-Za-z0-9]*/------------------------------/
s/boundary=------------------------[A-Za-z0-9]*/boundary=----------------------------/
</strippart>
<protocol crlf="yes">
EHLO %TESTNUMBER
MAIL FROM:%LTsender@example.com%GT
RCPT TO:%LTrecipient@example.com%GT
DATA
QUIT
</protocol>
<upload>
Content-Type: multipart/mixed; boundary=----------------------------%CR
Mime-Version: 1.0%CR
From: different%CR
To: another%CR
Reply-To: %LTfollowup@example.com%GT%CR
%CR
------------------------------%CR
Content-Type: multipart/alternative; boundary=----------------------------%CR
%CR
------------------------------%CR
Content-Type: text/html%CR
Content-Transfer-Encoding: 8bit%CR
X-test1: this is a header%CR
X-test2: this is another header%CR
%CR
%LTbody%GTThis is the html version%LT/body%GT%CR
------------------------------%CR
X-fileheader1: This is a header from a file%CR
X-fileheader2: This is #a folded header%CR
%CR
This is the plain text version%CR
--------------------------------%CR
%CR
------------------------------%CR
Content-Disposition: attachment; filename="test%TESTNUMBER.txt"%CR
X-fileheader1: This is a header from a file%CR
X-fileheader2: This is #a folded header%CR
%CR
This is an attached file.
It may contain any type of data.
%CR
--------------------------------%CR
.%CR
</upload>
</verify>
</testcase>