Hello Haskell,
what is a best way to bring C constant (defined in header file) into
the Haskell source? Haskell project is cabalized and should work with
both Win and Unix while the constants are OS-specific. the best way i
found at this moment is to use the following scheme:
mmap.h:
#if defined(mingw32_HOST_OS) || defined(__MINGW32__) || defined(_MSC_VER)
....
#else
INLINE int const_MAP_FILE( void )
{
return MAP_FILE;
}
#endif
mmap.hs:
#if defined(mingw32_HOST_OS) || defined(__MINGW32__) || defined(_MSC_VER)
....
#else
foreign import ccall unsafe "mydefs.h const_MAP_FILE" mAP_FILE :: CInt
#endif
Second question is how to test whether program compiles under Unix or
Windows environment. Posix/Win32 packages availability would be the
best criterion but it can't be tested :(
--
Best regards,
Bulat mailto:[EMAIL PROTECTED]
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