Re: [AD] build process overhaul

[Jon Rafkind <workmin@xxxxxxxxxx>]

Peter Wang wrote:

> On 2005-12-17, Jon Rafkind <workmin@xxxxxxxxxx> wrote:
>  
>
> > Peter Wang wrote:
> >    
> >
> > > Thanks.  It starts now, but the X libraries are not being linked in:
> > >
> > > Install file: "liballeg-4.3.0.so" as "lib/unix/liballeg-4.3.0.so"
> > > gcc -o examples/ex12bit obj/examples/ex12bit.o -Llib/unix -lalleg-4.3.0
> > > lib/unix/liballeg-4.3.0.so: undefined reference to `XFreePixmap'
> > > lib/unix/liballeg-4.3.0.so: undefined reference to `XSetWMProtocols'
> > > ... etc ...
> > >      
> > Can you post the output of the configuration stuff?
> >    
>
> I should have checked :-P
>
> The problem is that my X libraries are in /usr/X11R6/lib and, by
> default, the compiler doesn't look in there.  If I add it to the
> `LIBRARY_PATH' environment variable then the configuration works.
> However, ALLEGRO_WITH_XWINDOWS is #defined even if the libraries
> weren't found.
>
>  
The old build system for allegro using aclocal just set 
ALLEGRO_WITH_XWINDOWS unless the user supplied --no-x or something so I 
did the same thing in scons. I added a check for X11/X.h and 
XOpenDisplay() to decide if ALLEGRO_WITH_XWINDOWS. I also check in 
/usr/X11R6/[include|lib].

> Also, the maths library needs to be linked in.
>
>  
I added a check for sin() in libm so -lm will be added to the link line.