One more error. (Oh, i will make the build available for download if you want . If i come that far that is 
) (dont mind the warning)
flex -i -Peggyy -obuilt/tmp/lexer.lxx.cxx panda/src/egg/lexer.lxx
g++ -ftemplate-depth-30 -fPIC -c -o built/tmp/egg_lexer.o -I"/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Python.framework/Headers" -I"built/tmp" -I"built/include" -Ipanda/src/egg -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch x86_64 -D_XOPEN_SOURCE -O2 -DBUILDING_PANDAEGG built/tmp/lexer.lxx.cxx
In file included from /Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Python.framework/Headers/Python.h:8,
from built/include/threadSimpleImpl.h:31,
from built/include/mutexSimpleImpl.h:24,
from built/include/mutexTrueImpl.h:38,
from built/include/mutexDebug.h:19,
from built/include/lightMutex.h:19,
from panda/src/egg/lexer.lxx:16:
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Python.framework/Headers/pyconfig.h:1058:1: warning: "_XOPEN_SOURCE" redefined
<command-line>: warning: this is the location of the previous definition
built/tmp/lexer.lxx.cxx: In function ‘int yy_get_next_buffer()’:
built/tmp/lexer.lxx.cxx:2563: error: invalid initialization of reference of type ‘int&’ from expression of type ‘yy_size_t’
panda/src/egg/lexer.lxx:164: error: in passing argument 2 of ‘void input_chars(char*, int&, int)’
Storing dependency cache.
Elapsed Time: 2 sec
make: *** [all] Error 1