1#
2# CMake Toolchain file for crosscompiling on 32bit Windows platforms.
3#
4# This can be used when running cmake in the following way:
5#  cd build/
6#  cmake .. -DCMAKE_TOOLCHAIN_FILE=../contrib/cross-w32.cmake -DLWS_WITH_SSL=0
7#
8
9set(CROSS_PATH /opt/mingw32)
10
11# Target operating system name.
12set(CMAKE_SYSTEM_NAME Windows)
13
14# Name of C compiler.
15set(CMAKE_C_COMPILER "${CROSS_PATH}/bin/i686-w64-mingw32-gcc")
16set(CMAKE_CXX_COMPILER "${CROSS_PATH}/bin/i686-w64-mingw32-g++")
17set(CMAKE_RC_COMPILER "${CROSS_PATH}/bin/i686-w64-mingw32-windres")
18set(CMAKE_C_FLAGS "-Wno-error")
19
20#
21# Different build system distros set release optimization level to different
22# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3
23# here.  Actually the build system's local policy is completely unrelated to
24# our desire for cross-build release optimization policy for code built to run
25# on a completely different target than the build system itself.
26#
27# Since this goes last on the compiler commandline we have to override it to a
28# sane value for cross-build here.  Notice some gcc versions enable broken
29# optimizations with -O3.
30#
31if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release)
32	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
33	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
34endif()
35
36# Where to look for the target environment. (More paths can be added here)
37set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}")
38
39# Adjust the default behavior of the FIND_XXX() commands:
40# search programs in the host environment only.
41set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
42
43# Search headers and libraries in the target environment only.
44set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
45set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
46