// libtwintree.h:
int return_one( void );
int return_zero( void );

##</code><code>##

// libtwintree.c:
#include "libtwintree.h"
int return_one( void ) { return 1; }
int return_zero( void ) { return 0; }

##</code><code>##

TwinTree.pm : TwinTree.xs
        cd TwinTree && \
        perl Makefile.PL && \
        make && \
        make test && \
        make install

TwinTree.xs : libtwintree.so install
        mkdir -p TwinTree && \
        cp libtwintree.h TwinTree && \
        h2xs -Oxan TwinTree -L/usr/local/lib -llibtwintree libtwintree.h 

libtwintree.so : libtwintree.o
        gcc -shared -Wl,-soname,libtwintree.so -o libtwintree.so libtwintree.o -lc

libtwintree.o : 
        gcc -fPIC -g -c -Wall libtwintree.c

clean :
        rm -Rf *.o *.so TwinTree 

install : libtwintree.so
        cp libtwintree.so /usr/local/lib && \
        ldconfig -n /usr/local/lib


##</code><code>##

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"

#include "const-c.inc"

MODULE = TwinTree               PACKAGE = TwinTree

INCLUDE: const-xs.inc