If you use cpphs as a library, there is an API called runCpphsReturningSymTab. Thence you can throw away the actual pre-preprocessed result text, keep only the symbol table, and lookup whatever macros you wish to find their values. I suggest you make this into a little code-generator, to produce a Haskell module containing the values you need. On 5 Oct 2013, at 21:37, Ömer Sinan Ağacan wrote:
Hi all,
Let's say I want to #include a C header file in my Haskell library just to read some macro definitions. The C header file also contains some C code. Is there a way to load only macro definitions and not C code in #include declarations in Haskell?
What I'm trying to do is I'm linking my library against this C library but I want to support different versions of this C library, so I want to read it's version from one of it's header files. The problem is the header file contains some C code and makes my Haskell source code mixed with C source before compilation.
Any suggestions would be appreciated,