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Add 32-bit cross-compile toolchain

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This commit is contained in:
Allen Byrne 2019-08-29 10:36:12 -05:00
parent 37532a3688
commit fa540a3af8
2 changed files with 38 additions and 0 deletions
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MANIFEST
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@ -3263,6 +3263,7 @@
./java/lib/ext/slf4j-simple-1.7.25.jar
# CMake-specific Files
./config/toolchain/build32.cmake
./config/toolchain/crayle.cmake
./config/toolchain/GCC.cmake
./config/toolchain/intel.cmake

37
config/toolchain/build32.cmake Normal file
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@ -0,0 +1,37 @@
if (WIN32)
set (CMAKE_SYSTEM_NAME Windows)
set (CMAKE_GENERATOR_PLATFORM "x86")
else ()
set (CMAKE_SYSTEM_NAME Linux)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32 -msse2" CACHE STRING "c++ flags")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32 -msse2" CACHE STRING "c flags")
set (LIB32 /usr/lib) # Fedora
if (EXISTS /usr/lib32)
set (LIB32 /usr/lib32) # Arch, Solus
endif ()
set (CMAKE_SYSTEM_LIBRARY_PATH ${LIB32} CACHE STRING "system library search path" FORCE)
set (CMAKE_LIBRARY_PATH ${LIB32} CACHE STRING "library search path" FORCE)
# this is probably unlikely to be needed, but just in case
set (CMAKE_EXE_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "executable linker flags" FORCE)
set (CMAKE_SHARED_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "shared library linker flags" FORCE)
set (CMAKE_MODULE_LINKER_FLAGS "-m32 -L${LIB32}" CACHE STRING "module linker flags" FORCE)
# on Fedora and Arch and similar, point pkgconfig at 32 bit .pc files. We have
# to include the regular system .pc files as well (at the end), because some
# are not always present in the 32 bit directory
if (EXISTS ${LIB32}/pkgconfig)
set (ENV{PKG_CONFIG_LIBDIR} ${LIB32}/pkgconfig:/usr/share/pkgconfig:/usr/lib/pkgconfig:/usr/lib64/pkgconfig)
endif ()
# where is the target environment
set (CMAKE_FIND_ROOT_PATH ${LIB32})
# search for programs in the build host directories
set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
endif ()