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| 1 | +# CMake toolchain file for cross-compiling to arm64 |
| 2 | +set(CMAKE_SYSTEM_NAME Linux) |
| 3 | +set(CMAKE_SYSTEM_PROCESSOR aarch64) |
| 4 | + |
| 5 | +# Specify the cross compiler |
| 6 | +set(CMAKE_C_COMPILER aarch64-linux-gnu-gcc) |
| 7 | +set(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++) |
| 8 | + |
| 9 | +# Add custom CMake module path for finding packages |
| 10 | +list(APPEND CMAKE_MODULE_PATH "/workspace/cmake/linux") |
| 11 | + |
| 12 | +# Use system's multiarch directories - no separate sysroot needed |
| 13 | +# The cross-compiler toolchain already knows about: |
| 14 | +# /usr/lib/aarch64-linux-gnu/ |
| 15 | +# /usr/include/aarch64-linux-gnu/ |
| 16 | +# Ubuntu's multiarch support handles everything |
| 17 | + |
| 18 | +# Set CMAKE_LIBRARY_ARCHITECTURE for multiarch support |
| 19 | +set(CMAKE_LIBRARY_ARCHITECTURE aarch64-linux-gnu) |
| 20 | + |
| 21 | +# Set root paths for finding libraries - exclude Linuxbrew/Homebrew |
| 22 | +set(CMAKE_FIND_ROOT_PATH |
| 23 | + /usr |
| 24 | + /usr/lib/aarch64-linux-gnu |
| 25 | + /usr/include/aarch64-linux-gnu |
| 26 | +) |
| 27 | + |
| 28 | +# Add prefix paths for finding CMake package config files |
| 29 | +set(CMAKE_PREFIX_PATH |
| 30 | + /usr |
| 31 | + /usr/lib/aarch64-linux-gnu |
| 32 | + /usr/lib/aarch64-linux-gnu/cmake |
| 33 | + /usr/share |
| 34 | +) |
| 35 | + |
| 36 | +# Exclude Linuxbrew/Homebrew paths to prevent architecture mismatches |
| 37 | +set(CMAKE_IGNORE_PATH |
| 38 | + /home/linuxbrew/.linuxbrew |
| 39 | + /opt/homebrew |
| 40 | + /usr/local/Homebrew |
| 41 | +) |
| 42 | + |
| 43 | +# Search for programs in the build host directories |
| 44 | +set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) |
| 45 | + |
| 46 | +# Search for libraries and headers in the target directories only |
| 47 | +set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) |
| 48 | +set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) |
| 49 | +set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) |
| 50 | + |
| 51 | +# Don't build helper tools when cross-compiling |
| 52 | +set(JUCE_BUILD_HELPER_TOOLS OFF CACHE BOOL "Don't build helper tools" FORCE) |
| 53 | + |
| 54 | +# Point to pre-built juceaide from host build |
| 55 | +if(EXISTS "/workspace/build-host-tools/JUCE/tools/juceaide") |
| 56 | + set(JUCE_JUCEAIDE_PATH "/workspace/build-host-tools/JUCE/tools/juceaide" CACHE FILEPATH "Path to juceaide" FORCE) |
| 57 | + message(STATUS "Using pre-built juceaide: /workspace/build-host-tools/JUCE/tools/juceaide") |
| 58 | +endif() |
| 59 | + |
| 60 | +# pkg-config configuration for cross-compilation |
| 61 | +set(PKG_CONFIG_EXECUTABLE /usr/bin/aarch64-linux-gnu-pkg-config) |
| 62 | +if(NOT EXISTS "${PKG_CONFIG_EXECUTABLE}") |
| 63 | + # Fallback to regular pkg-config with environment variables |
| 64 | + set(PKG_CONFIG_EXECUTABLE /usr/bin/pkg-config) |
| 65 | + set(ENV{PKG_CONFIG_PATH} "") |
| 66 | + set(ENV{PKG_CONFIG_LIBDIR} "/usr/lib/aarch64-linux-gnu/pkgconfig:/usr/share/pkgconfig") |
| 67 | + set(ENV{PKG_CONFIG_SYSROOT_DIR} "/") |
| 68 | +endif() |
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