Disable more things and fix Linux cross compilation (#11)

Add logic for the Linux ARM platforms.

Disable OpenMP and Fortran to reduce dependencies, and LAPACKE, because it wasn't used by anything.

.github/workflows/main.yml

@@ -21,10 +21,10 @@ jobs:
         include:
           - container: wpilib/raspbian-cross-ubuntu:bookworm-22.04
             artifact-name: Arm32
-            build-options: -Pplatform=linux-arm32
+            build-options: -Pplatform=linux-arm32 -Ptoolchain=/usr/local/toolchain-config.cmake
           - container: wpilib/aarch64-cross-ubuntu:bookworm-22.04
             artifact-name: Arm64
-            build-options: -Pplatform=linux-arm64
+            build-options: -Pplatform=linux-arm64 -Ptoolchain=/usr/local/toolchain-config.cmake
           - container: wpilib/ubuntu-base:22.04
             artifact-name: Linux
             build-options:
@@ -38,11 +38,11 @@ jobs:
         name: Install dependencies
       - uses: actions/checkout@v4
         with:
-          submodules: 'true'
+          submodules: "true"
       - uses: actions/setup-java@v4
         with:
           java-version: 17
-          distribution: 'temurin'
+          distribution: "temurin"
       - run: ./gradlew publish ${{ matrix.build-options }}
         name: Build with Gradle
       - run: ls build*/install/lib/*
@@ -70,11 +70,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          submodules: 'true'
+          submodules: "true"
       - uses: actions/setup-java@v4
         with:
           java-version: 17
-          distribution: 'temurin'
+          distribution: "temurin"
       - uses: ilammy/[email protected]
         with:
           arch: ${{ matrix.tool-arch }}
@@ -94,11 +94,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          submodules: 'true'
+          submodules: "true"
       - uses: actions/setup-java@v4
         with:
           java-version: 17
-          distribution: 'temurin'
+          distribution: "temurin"
       - run: brew install cmake ninja
         name: install ninja
       - run: ./gradlew publish
@@ -136,10 +136,10 @@ jobs:
           ./gradlew publish -Pthirdparty
         working-directory: combiner
         env:
-          RUN_AZURE_ARTIFACTORY_RELEASE: 'TRUE'
+          RUN_AZURE_ARTIFACTORY_RELEASE: "TRUE"
           ARTIFACTORY_PUBLISH_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
           ARTIFACTORY_PUBLISH_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
       - uses: actions/upload-artifact@v4
         with:
           name: Maven
-          path: ~/releases
+          path: ~/releases

CMakeLists.txt

@@ -6,27 +6,30 @@ cmake_minimum_required(VERSION 3.25)
 set(CMAKE_OSX_ARCHITECTURES arm64 x86_64)
 set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT Embedded)
 project(thirdparty-ceres C CXX)
-
+if(TOOLCHAIN_TRIPLE STREQUAL aarch64-linux-gnu)
+    # Hack around opensdk not having the wrong arch and Ceres not being able to detect the Eigen version when on aarch64
+    set(CMAKE_SYSTEM_PROCESSOR ARM64)
+endif()
 set(BUILD_SHARED_LIBS OFF)
 set(BUILD_TESTING OFF)
 set(BUILD_EXAMPLES OFF)
 
 set(NO_CBLAS ON)
+set(NO_LAPACKE ON)
 set(C_LAPACK ON)
 set(USE_LOCKING ON)
 set(USE_THREAD OFF)
 set(NOFORTRAN ON)
 
 set(SUITESPARSE_ENABLE_PROJECTS cholmod)
 set(SUITESPARSE_USE_CUDA OFF)
+set(SUITESPARSE_USE_FORTRAN OFF)
+set(SUITESPARSE_USE_OPENMP OFF)
 set(SUITESPARSE_USE_PYTHON OFF)
 set(CHOLMOD_GPL OFF)
 if(NOT APPLE)
     set(BLA_VENDOR OpenBLAS)
 endif()
-if(MSVC)
-    set(SUITESPARSE_USE_FORTRAN OFF)
-endif()
 
 set(EIGEN_BUILD_CMAKE_PACKAGE ON)
 
@@ -63,6 +66,7 @@ fetchcontent_declare(
     GIT_TAG 0fb2ed140d4fc0108553ecfb25f2d7fc1a9319a1
     OVERRIDE_FIND_PACKAGE 
     PATCH_COMMAND git apply ${CMAKE_CURRENT_SOURCE_DIR}/0003-Make-assignment-constexpr.patch
+    UPDATE_DISCONNECTED 1
 )
 
 fetchcontent_declare(

build.gradle

@@ -68,7 +68,7 @@ ext.platformClassifier = ext.platformPath.replaceFirst('/', '')
 if (!project.hasProperty('repo')) {
     ext.repo = 'development'
 }
-def pubVersion = "$ext.version-1"
+def pubVersion = "$ext.version-2"
 
 def outputsFolder = file("$project.buildDir/outputs")
 
@@ -94,11 +94,18 @@ ext.addTaskToCopyAllOutputs = { task ->
 
 ['Debug', 'RelWithDebInfo'].each { buildtype ->
     task "configure$buildtype" (type: Exec) {
-        def baseArgs = ["-B", "build$buildtype", "-DCMAKE_BUILD_TYPE=$buildtype", "-G", "Ninja"]
+        def baseArgs = ["-B", "build$buildtype", "-DCMAKE_BUILD_TYPE=$buildtype", "-G", "Ninja", "--fresh"]
         if (platform == "windows-arm64") {
             // Need to set CMAKE_CROSSCOMPILING because getarch can't be crosscompiled and executed on the host.
             // Also, TARGET must be generic. You need to set it if crosscompiling, but setting it to ARMV8, it will try to use assembly, which fails on Windows
             baseArgs += ["-DCMAKE_CROSSCOMPILING=1", "-DCMAKE_SYSTEM_NAME=Windows", "-DCMAKE_SYSTEM_PROCESSOR=ARM64", "-DTARGET=GENERIC", "-DARCH=ARM64"]
+        } else if (platform.startsWith("linux-arm64")) {
+            baseArgs += ["-DTARGET=ARMV8", "-DARCH=ARM64"]
+        } else if (platform.startsWith("linux-arm32")) {
+            baseArgs += ["-DTARGET=ARMV6", "-DARCH=ARM"]
+        }
+        if (project.hasProperty("toolchain")) {
+            baseArgs += ["--toolchain=$toolchain"]
         }
         outputs.dir "build$buildtype"
         executable "cmake"