All these seemed to work except for 2. In the c2hs output it says: cpp -x c ... not: cpp -x -c ... I think that might be a key issue. Ruben On 13/04/2007, at 10:40 AM, Duncan Coutts wrote:
On Fri, 2007-04-13 at 10:17 +1000, Ruben Zilibowitz wrote:
Oh, right. I see now. I have renamed file.chs to fileInterface.chs. And left the line #include "file.h" in there. But c2hs fileInterface.chs still gives me errors:
Attempting to read file `fileInterface.chs'... ...parsing `fileInterface'... ...successfully loaded `fileInterface'. Invoking cpp as `cpp -x c fileInterface.h > fileInterface.i'... powerpc-apple-darwin8-gcc-4.0.1: c: No such file or directory powerpc-apple-darwin8-gcc-4.0.1: c: No such file or directory powerpc-apple-darwin8-gcc-4.0.1: warning: '-x -x' after last input file has no effect powerpc-apple-darwin8-gcc-4.0.1: no input files c2hs: Error during preprocessing custom header file
It seems that cpp isn't happy with: cpp -x c fileInterface.h. It complains about the -x c option. Perhaps this is a bug in the Mac OS X version of cpp. Any ideas?
Ok, try these from the command line and tell us which work:
1. cpp -x -c fileInterface.h > fileInterface.i
2. cpp -x -c fileInterface.h -o fileInterface.i
3. cpp fileInterface.h -x -c > fileInterface.i
4. cpp fileInterface.h > fileInterface.i
5. gcc -x -c -E fileInterface.h > fileInterface.i
6. gcc -E fileInterface.h > fileInterface.i
Perhaps also look in the cpp man page to see if there is anything funny about the -x option on OSX.
The reason we need the -x c is to tell cpp that this file is a c file despite the fact that it ends in .h. The same applies to gcc -E.
For example if you find gcc -E -x -c works then you can use that: c2hs --cpp='gcc -E' file.chs
Duncan