Hi all,
I've posted this issue on StackOverflow[1] and have not yet received a
suitable response, so I thought I'd ask here instead.
Basically, I need to have a single build that uses two sets of
compiler flags. One set is used to build native windows applications,
and the other to build a managed (C++.net) application. It is my
understanding that CMake kind of goes out of its way so that compiler
flags are uniform throughout the project because this is usually the
Right Thing(TM) -- actually, this is one of the reasons I like CMake.
How can I create a CMake build script so that I have a subset of
targets that build using a specific set of compiler flags, and another
subset of targets that build with another set of compiler flags?
Please keep in mind that I can't "switch" between either set of flags
like I would for debug and release modes because I'm always building
all the targets.
I currently have this little helper macro (I understand why this is
wrong, see below):
# Compile managed (.NET) program.
macro(add_managed_executable target)
# Enable managed C++ extensions.
if(NOT ${CMAKE_CXX_FLAGS} MATCHES "/clr")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /clr")
endif()
# Remove incompatible settings.
if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/RTC")
string(REGEX REPLACE
"/RTC(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}"
)
endif()
if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/MT")
string(REGEX REPLACE
"/MT(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}"
)
endif()
if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/MD")
string(REGEX REPLACE
"/MD(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}"
)
endif()
# Add target.
add_executable(${target} WIN32 ${ARGN})
endmacro()
However, as expected, this completely screws up my build because
changing CMAKE_CXX_FLAGS* affects the other targets, not only the one
specified in the add_executable() call inside the macro.
Thanks,
André
[1]: http://stackoverflow.com/q/10167175/313063
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