[CMake] FindPkgConfig and using -m32 on Linux

[Marc Herbert]

> On 17 Jan 2019, at 04:57, Jan Wielemaker <jan at swi-prolog.org> wrote:
> 
> I got very far using
> 
>    set(CMAKE_C_FLAGS -m32)

Maybe not going to solve your main issue but worth changing anyway to:

set(CMAKE_C_FLAGS              "-m32 ${CMAKE_C_FLAGS}")

With your previous and simpler code, passing any cmake -DCMAKE_C_FLAGS_RELEASE/DEBUG/etc. on the command line will still work except for the “empty” one! Very confusing and learned the hard way :-)


You also want:
set(CMAKE_ASM_FLAGS            "-m32 ${CMAKE_ASM_FLAGS}")
set(CMAKE_CXX_FLAGS            "-m32 ${CMAKE_CXX_FLAGS}")

other?