[Pythonmac-SIG] python.h and veclib.h incompatible?

[Brian Clarkson]

Hello.

I was swig'ing an extension that made use of veclib in its internals  
and discovered that if python.h is included before veclib.h that  
compilation will not succeed. It seems they are interacting so that  
parts of fp.h are being left out when they shouldn't be.

I have distilled the problem down to the following simple test case:

****begin test.cpp****

#include <python.h>
#include<veclib/veclib.h>
#include<iostream>

using namespace std;

int main(){
	cerr << scalb(3,4) << endl;
	return 0;
}

****end test.cpp****

Which when compiled as follows:

gcc -I/sw/include/python2.3 -c test.cpp

gives the following errors:

In file included from /sw/include/python2.3/python.h:70,
                  from test.cpp:1:
/sw/include/python2.3/objimpl.h:255: warning: use of `long double'  
type; its
    size may change in a future release
/sw/include/python2.3/objimpl.h:255: warning: (Long double usage is  
reported
    only once for each file.
/sw/include/python2.3/objimpl.h:255: warning: To disable this warning,  
use
    -Wno-long-double.)
In file included from  
/System/Library/Frameworks/CoreServices.framework/Frameworks/ 
CarbonCore.framework/Headers/CarbonCore.h:165,
                  from  
/System/Library/Frameworks/CoreServices.framework/Headers/ 
CoreServices.h:21,
                  from  
/System/Library/Frameworks/veclib.framework/Headers/veclib.h:20,
                  from test.cpp:2:
/System/Library/Frameworks/CoreServices.framework/Frameworks/ 
CarbonCore.framework/Headers/fp.h: In
    function `long double scalbl(long double, long int)':
/System/Library/Frameworks/CoreServices.framework/Frameworks/ 
CarbonCore.framework/Headers/fp.h:1896: error: `
    scalb' undeclared (first use this function)
/System/Library/Frameworks/CoreServices.framework/Frameworks/ 
CarbonCore.framework/Headers/fp.h:1896: error: (Each
    undeclared identifier is reported only once for each function it  
appears
    in.)

Other than refactoring in order to hide veclib.h from python.h, does  
anyone have any fixes for this?

Thanks in advance!

Brian