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-rw-r--r--config/toolchain/build32.cmake75
1 files changed, 75 insertions, 0 deletions
diff --git a/config/toolchain/build32.cmake b/config/toolchain/build32.cmake
new file mode 100644
index 0000000..deb5899
--- /dev/null
+++ b/config/toolchain/build32.cmake
@@ -0,0 +1,75 @@
+if (WIN32)
+ set (CMAKE_SYSTEM_NAME Windows)
+ set (CMAKE_GENERATOR_PLATFORM "x86")
+elseif(APPLE)
+ set (CMAKE_OSX_ARCHITECTURES "i386")
+elseif(MINGW)
+ set (CMAKE_SYSTEM_NAME Windows)
+ set (CMAKE_C_COMPILER i686-w64-mingw32-gcc)
+ set (CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+ set (CMAKE_RC_COMPILER i686-w64-mingw32-windres)
+ set (CMAKE_Fortran_COMPILER i686-w64-mingw32-gfortran)
+
+ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32" CACHE STRING "c++ flags")
+ set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32" 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} ${LIB32}/pkgconfig:/usr/share/pkgconfig:/usr/lib/pkgconfig:/usr/lib64/pkgconfig)
+ endif ()
+
+ set (CMAKE_FIND_ROOT_PATH /usr/i686-w64-mingw32)
+ set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+ set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+ set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+ set (CMAKE_CROSSCOMPILING_EMULATOR wine32)
+else ()
+ set (CMAKE_SYSTEM_NAME Linux)
+
+ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32" CACHE STRING "c++ flags")
+ set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32" 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 () \ No newline at end of file