Roland Schwarz wrote:
I am wondering if it would be possible to write a computed include macro that is sufficiently compiler independent?
E.e. given a macro
#define BOOST_PLATFORM_INCLUDE(hdr) ... definition missing ...
which should be usable as:
#include BOOST_PLATFORM(foo.h)
The effect being win32/foo.h included on one linux/foo.h included on another platform.
I have yet figured out a way that can achieve something close, but gcc does not allow to use a parameterized macro.
Where is the problem? #if defined(linux) || defined(__linux) || defined(__linux__) # define PLATFORM_HEADER_DIRECTORY linux #elif defined(_WIN32) || defined(__WIN32__) || defined(WIN32) # define PLATFORM_HEADER_DIRECTORY windows // [...] #endif #define PLATFORM_HEADER(header) <PLATFORM_HEADER_DIRECTORY/header> #include PLATFORM_HEADER(foo.h) Should work. I've no idea how portable it is, though. If you need quotes instead use BOOST_PP_STRINGIZE: #define PLATFORM_HEADER(header) \ BOOST_PP_STRINGIZE(PLATFORM_HEADER_DIRECTORY/header) Regards, Tobias