# toolchain file for linux multilib building
set(CMAKE_C_FLAGS "-m32" CACHE STRING "C compiler flags"   FORCE)
set(CMAKE_CXX_FLAGS "-m32" CACHE STRING "C++ compiler flags" FORCE)

if(EXISTS /usr/lib32)
    set(LIB32 /usr/lib32)
else()
	set(LIB32 /usr/lib)
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)

# point pkg-config to lib32 
if(EXISTS ${LIB32}/pkgconfig)
    set(ENV{PKG_CONFIG_LIBDIR} ${LIB32}/pkgconfig:/usr/share/pkgconfig:/usr/lib/pkgconfig:/usr/lib64/pkgconfig)
endif()