Add Python 3.14 wheel builds

[Copilot]

• Investigate cibuildwheel versions and Python 3.14 support
• Update pypa/cibuildwheel from v2.20.0 to v3.3.1 (which includes CPython 3.14.2)
• Add cp31?t-* to CIBW_SKIP to skip free-threading builds (now built by default in cibuildwheel v3.1+)
• Remove cp36-* and pp* from CIBW_SKIP (invalid in cibuildwheel v3)
• Fix pre_build.sh: Python 3.14 uses LC_BUILD_VERSION instead of LC_VERSION_MIN_MACOSX in Mach-O headers
• Replace retired macos-13 runner with macos-14 (Apple Silicon) for x86_64 cross-compilation
• Fix pre_build.sh: pass ARCHFLAGS to pcre2/jansson configure for cross-compilation
• Fix build.yml: add macOS-specific flags for uWSGI build
• Fix macOS x86_64 failure: set explicit per-matrix macOS ARCHFLAGS, APPEND_CFLAGS, and LDFLAGS instead of relying on ${ARCHFLAGS:-} expansion in CIBW_ENVIRONMENT_MACOS

Original prompt

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This section details on the original issue you should resolve

<issue_title>Wheels for Python 3.14</issue_title>
<issue_description>Would it be possible to build wheels for Python 3.14?</issue_description>

<agent_instructions>The changes necessary will likely all be in the CI pipeline. cibuildwheel compatibility should be confirmed.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Wheels for Python 3.14 #43

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[ipmb]

@copilot remove these warnings from the build:

Warning: cibuildwheel: Invalid skip selector: 'cp36-*'. cibuildwheel 3.x no longer supports Python < 3.8. Please use the 2.x series or update `skip`. This selector will have no effect. 
Warning: cibuildwheel: Invalid skip selector: 'pp*'. This selector matches a group that wasn't enabled. Enable it using the `enable` option or remove this selector. This selector will have no effect. 

[Copilot]

@copilot remove these warnings from the build:

...

Done in 5a71799. Removed both cp36-* (Python < 3.8 no longer supported in cibuildwheel v3) and pp* (PyPy not enabled by default in v3, so skip has no effect).

[ipmb]

@copilot review and resolve the the issues in the build https://github.com/lincolnloop/pyuwsgi-wheels/actions/runs/22357647552

[Copilot]

@copilot review and resolve the the issues in the build https://github.com/lincolnloop/pyuwsgi-wheels/actions/runs/22357647552

The macos-14 arm64 job was failing in pre_build.sh because Python 3.14 binaries use LC_BUILD_VERSION instead of LC_VERSION_MIN_MACOSX in their Mach-O load commands. With set -o pipefail, the grep returning exit code 1 (no match) caused the script to abort.

Fixed in 0c4453c:

1. Skip deployment target detection entirely if cibuildwheel has already set MACOSX_DEPLOYMENT_TARGET (it does in v3.2.1+)
2. When detection is needed, fall back from LC_VERSION_MIN_MACOSX to LC_BUILD_VERSION (Python 3.14+)
3. Added an explicit error if both detection methods fail

[ipmb]

@copilot Resolve this issue in the build:

The configuration 'macos-13-us-default' is not supported

[Copilot]

@copilot Resolve this issue in the build:

The configuration 'macos-13-us-default' is not supported

Fixed in e08b3c5. The macos-13 GitHub Actions runner has been retired. Replaced with macos-14 (Apple Silicon) which cross-compiles x86_64 wheels. Also updated pre_build.sh to pass ARCHFLAGS (set by cibuildwheel to -arch x86_64 during cross-compilation) to the pcre2 and jansson configure commands so the native dependencies are built for the correct target architecture.

[ipmb]

@copilot resolve the build error for Build wheels for macos-14 x86_64

[Copilot]

@copilot resolve the build error for Build wheels for macos-14 x86_64

Fixed in 829cf31. The uWSGI build system (uwsgiconfig.py) compiles with its own clang invocations that don't automatically inherit ARCHFLAGS. Added CIBW_ENVIRONMENT_MACOS to propagate ARCHFLAGS via APPEND_CFLAGS and LDFLAGS — the two env vars uwsgiconfig.py reads directly — so the compiled .so is built for the correct target architecture (x86_64 when cross-compiling).

[ipmb]

@copilot build_pcre and build_jannson already have these set CFLAGS="${ARCHFLAGS:-}" LDFLAGS="${ARCHFLAGS:-}". Does your change mean that isn't necessary anymore? Double check your work.

[Copilot]

@copilot build_pcre and build_jannson already have these set CFLAGS="${ARCHFLAGS:-}" LDFLAGS="${ARCHFLAGS:-}". Does your change mean that isn't necessary anymore? Double check your...

Both changes are still needed — they target different build components:

• pre_build.sh CFLAGS="${ARCHFLAGS:-}" → affects pcre2/jansson's ./configure. Autoconf reads CFLAGS from the env. CIBW_ENVIRONMENT_MACOS only sets APPEND_CFLAGS, which autoconf doesn't know about, so the CFLAGS in pre_build.sh can't be removed.

• CIBW_ENVIRONMENT_MACOS APPEND_CFLAGS="${ARCHFLAGS:-}" → affects uWSGI's build. uwsgiconfig.py reads APPEND_CFLAGS (not CFLAGS), so the pre_build.sh subshell CFLAGS setting doesn't reach it.

The LDFLAGS overlap is technically redundant (both set to ${ARCHFLAGS:-}), but removing either risks breaking its respective component if the other ever changes.

[ipmb]

@copilot still failing, try again

[Copilot]

@copilot still failing, try again

Addressed in bd6cb88. I changed CIBW_ENVIRONMENT_MACOS to set explicit per-matrix values for ARCHFLAGS, APPEND_CFLAGS, and LDFLAGS (-arch x86_64 or -arch arm64) instead of relying on ${ARCHFLAGS:-} expansion. This makes the target architecture deterministic for both pre_build.sh (pcre2/jansson) and uWSGI’s uwsgiconfig.py build path.

[ipmb]

@copilot handle this

 Build wheels for macos-14 x86_64
cibuildwheel: Setting SYSTEM_VERSION_COMPAT=0 to ensure CPython 3.8 can get correct macOS version and allow installation of wheels with MACOSX_DEPLOYMENT_TARGET >= 11.0. See https://github.com/pypa/cibuildwheel/issues/1767 for the details.

[Copilot]

@copilot handle this

...

That line is informational from cibuildwheel, not an error. It intentionally sets SYSTEM_VERSION_COMPAT=0 on macOS so CPython 3.8 reports the real macOS version and can install wheels tagged macosx_11_0+ correctly.

I re-checked the latest run (22362136683) and it is green, including Build wheels for macos-14 x86_64.