Hey CMake list,
I have kind of a problem with CMake (but I guess it's the strange way
I'm using it :p).
I use CMake to have a simple and consistent build system for my
cross-platform library. My library is written in C, but it also has an
optional wrapper C++ interface.
During the generation of makefiles, the user can choose whether or not
to build the C++ interface, and so I choose the appropriate language
for my library. The thing is, CMake will always fail if there is no
g++, even if the user disables the C++ interface. The code in
CMakeLists.txt looks like this(see the full file in context at [1])
[code]
# I don't add 'C' as the language, because I get build errors with g++
project(PROJECT_NAME)
# Option to build c++ interface
option(BUILD_CXX "Build the C++ interface" ON)
# Default c files
set(SOURCES list_of_c_sources.c)
# Add c++ interface if needed
if (BUILD_CXX)
set(CXX_SOURCES list_of_cxx_sources.cxx)
set_source_files_properties( CXX_SOURCES PROPERTIES LANGUAGE CXX )
set(SOURCES ${SOURCES} ${CXX_SOURCES})
endif(BUILD_CXX)
[/code]
When I try to generate makefiles with: `cmake -DBUILD_CXX=OFF .....`,
the generation fails if it can't find a c++ compiler, even though it
isn't needed
I hope the *problem* is clear here, but I'm willing to provide more
information if needed. Thanks in advance.
-- Aggelos Kolaitis
[1]:
https://bitbucket.org/sdlu/sdlu/src/79338d0f19b24c5997b87b5c318faf76627be50a/CMakeLists.txt?at=master
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