Support iOS

.github/workflows/build.yml

@@ -180,6 +180,7 @@ jobs:
             clang-version: 20
           - platform: iOS arm64
             runner: macos-latest
+            rust-target: aarch64-apple-ios
             cmake-options: "-DCMAKE_TOOLCHAIN_FILE=$GITHUB_WORKSPACE/cmake/toolchain/ios.cmake"
           - platform: macOS arm64
             runner: macos-latest
@@ -202,6 +203,10 @@ jobs:
       - name: Install Ninja
         uses: seanmiddleditch/gha-setup-ninja@v6
 
+      - name: Install Rust Target
+        if: "${{ matrix.rust-target }}"
+        run: rustup target add ${{ matrix.rust-target }}
+
       - name: Install Clang
         if: "${{ matrix.platform == 'Linux x86_64 Clang' }}"
         run: |

src/icicle/CMakeLists.txt

@@ -10,13 +10,19 @@ if(MSVC)
     set(ICICLE_RUST_LIB ${ICICLE_ARTIFACT_DIR}/${ICICLE_RUST_PROJECT_NAME}.lib)
 endif()
 
+set(CARGO_OPTIONS "")
+
+if(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+  set(CARGO_OPTIONS "--target=aarch64-apple-ios")
+endif()
+
 ExternalProject_Add(
     icicle-rust-project
     PREFIX ${CMAKE_CURRENT_BINARY_DIR}
     SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}
     BINARY_DIR ${CMAKE_CURRENT_LIST_DIR}
     CONFIGURE_COMMAND ""
-    BUILD_COMMAND ${CMAKE_COMMAND} -E env "CARGO_TARGET_DIR=${ICICLE_BUILD_DIR}" cargo build --all-targets $<IF:$<CONFIG:Debug>,--lib,--release>
+    BUILD_COMMAND ${CMAKE_COMMAND} -E env "CARGO_TARGET_DIR=${ICICLE_BUILD_DIR}" cargo build ${CARGO_OPTIONS} --all-targets $<IF:$<CONFIG:Debug>,--lib,--release>
     INSTALL_COMMAND ""
     USES_TERMINAL_CONFIGURE 1
     USES_TERMINAL_BUILD 1