try ios wheels

.github/workflows/test.yml

@@ -32,6 +32,7 @@ env:
 
 jobs:
   test:
+    if: "false"
     runs-on: ${{ matrix.os }}
     timeout-minutes: 20
     continue-on-error: ${{ matrix.zmq == 'head' || matrix.python == '3.14' }}

.github/workflows/wheels.yml

@@ -73,78 +73,15 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: macos-13
-            name: mac-pypy
+          - os: macos-15
+            name: ios
             cibw:
-              build: "pp*"
+              platform: "ios"
 
-          - os: macos-14
-            name: mac-cpython
-            cibw:
-              arch: universal2
-              build: "cp*"
-
-          - name: manylinux-x86_64
-            cibw:
-              arch: x86_64
-              build: "*manylinux*"
-
-          - name: manylinux-i686
-            cibw:
-              arch: i686
-              build: "*manylinux*"
-
-          - name: manylinux-arm
-            os: ubuntu-24.04-arm
-            cibw:
-              build: "*manylinux*"
-
-          # additional manylinux variants, not specified in pyproject.toml:
-          # this is where we would add e.g. older manylinux_2014 builds
-          # - name: manylinux-x86_64-2014
+          # - os: macos-13
+          #   name: mac-pypy
           #   cibw:
-          #     arch: x86_64
-          #     build: "cp31*-manylinux* pp39-manylinux*"
-          #     manylinux_x86_64_image: manylinux_2_28
-
-          - name: musllinux
-            cibw:
-              arch: auto,auto32
-              build: "*musllinux*"
-
-          - name: musllinux-arm
-            os: ubuntu-24.04-arm
-            cibw:
-              build: "*musllinux*"
-
-          - name: android
-            os: ubuntu-24.04
-            cibw:
-              platform: android
-              arch: all
-
-          - name: win32
-            os: windows-2022
-            architecture: x86
-            cibw:
-              build: "cp*win32"
-
-          - os: windows-2022
-            name: win-pypy
-            architecture: x64
-            cibw:
-              build: "pp*win_amd64"
-
-          - os: windows-2022
-            name: win_amd64
-            architecture: x64
-            cibw:
-              build: "cp*win_amd64"
-
-          - os: windows-11-arm
-            name: win_arm64
-            cibw:
-              arch: ARM64
+          #     build: "pp*"
 
     steps:
       - uses: actions/checkout@v4

CMakeLists.txt

@@ -282,7 +282,11 @@ if (ZMQ_PREFIX STREQUAL "bundled")
       )
 
       # add --host for cross compiling
-      message(STATUS "Cross: ${CMAKE_CROSSCOMPILING} $ENV{CIBW_HOST_TRIPLET}")
+      message(STATUS "Checking cross compilation config: cross=${CMAKE_CROSSCOMPILING} host=$ENV{CIBW_HOST_TRIPLET}")
+      if(IOS AND NOT ENV{CIBW_HOST_TRIPLET})
+        message(STATUS "Guessing host triplet arm64-apple-ios for cross compilation")
+        set(ENV{CIBW_HOST_TRIPLET} "arm64-apple-ios")
+      endif()
       if(CMAKE_CROSSCOMPILING AND DEFINED ENV{CIBW_HOST_TRIPLET})
         message(STATUS "Cross compiling libsodium for host: $ENV{CIBW_HOST_TRIPLET}")
         list(APPEND libsodium_configure "--host=$ENV{CIBW_HOST_TRIPLET}")

pyproject.toml

@@ -186,6 +186,16 @@ repair-wheel-command = "delocate-wheel --sanitize-rpaths --require-archs {deloca
 ZMQ_PREFIX = "/tmp/zmq"
 MACOSX_DEPLOYMENT_TARGET = "10.15"
 
+[tool.cibuildwheel.ios]
+# need cmake >=4 for https://github.com/pypa/cibuildwheel/issues/2435
+before-all = "brew upgrade cmake"
+xbuild-tools = ["cmake", "ninja"]
+
+[tool.cibuildwheel.ios.config-settings]
+"cmake.define.ZMQ_PREFIX" = "bundled"
+"cmake.define.CMAKE_SYSTEM_NAME" = "iOS"
+"cmake.define.CMAKE_SYSTEM_VERSION" = "13"
+
 [tool.cibuildwheel.windows]
 before-all = "python buildutils/bundle.py licenses"
 repair-wheel-command = """\

tools/install_libzmq.sh

@@ -1,13 +1,20 @@
 #!/usr/bin/env bash
 # script to install libzmq/libsodium for use in wheels
+echo $PATH
+env | grep CIBW
+env | grep -I ios
+env | grep MAC
+env | grep SDK
+
 set -ex
+
 LIBSODIUM_VERSION=$(python buildutils/bundle.py libsodium)
 LIBZMQ_VERSION=$(python buildutils/bundle.py)
 PYZMQ_DIR="$PWD"
 LICENSE_DIR="$PYZMQ_DIR/licenses"
 test -d "$LICENSE_DIR" || mkdir "$LICENSE_DIR"
 SHLIB_EXT=".so"
-if [[ "$(uname)" == "Darwin" ]]; then
+if [[ "$(uname)" == "Darwin" && "${CIBW_PLATFORM:-macos}" == "macos" ]]; then
     SHLIB_EXT=".dylib"
     # make sure deployment target is set
     echo "${MACOSX_DEPLOYMENT_TARGET=}"
@@ -33,7 +40,7 @@ if [[ "$(uname)" == "Darwin" ]]; then
             exit 1
             ;;
     esac
-    echo "building libzmq for mac ${ARCHS}"
+    echo "building libzmq for ${CIBW_PLATFORM:-macos} ${ARCHS}"
     export CXX="${CC:-clang++}"
     for arch in ${ARCHS}; do
         # seem to need ARCH in CXX for libtool
@@ -42,6 +49,9 @@ if [[ "$(uname)" == "Darwin" ]]; then
         export CXXFLAGS="-arch ${arch} ${CXXFLAGS:-}"
         export LDFLAGS="-arch ${arch} ${LDFLAGS:-}"
     done
+elif [[ "${CIBW_PLATFORM:-}" == "ios" ]]; then
+    echo "building libzmq for ${CIBW_PLATFORM}"
+    SHLIB_EXT=".dylib"
 fi
 
 PREFIX="${ZMQ_PREFIX:-/usr/local}"