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set(CMAKE_C_FLAGS "-m32" CACHE STRING "C compiler flags" FORCE)
set(CMAKE_CXX_FLAGS "-m32" CACHE STRING "C++ compiler flags" FORCE)
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()
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