Hello Alexander,

Yes, I installed pil32 and Jon Kleiser's library. I built everything but the 
small test program could not find the gl functions wrappers.

So I modified the gl lib makefile and everything works : now I have a pil32 
running with openGL on mac os 10.6 (so not need for the emulator).


1) The changes I made are surely not perfect, they are likely to cause some 
troubles on the other OSs or other (older?) versions of mac os x. So I have 
just explained them here, because they could be useful for another user or to 
correctly fix the makefile (sorry I cannot help more).

2) I have been curious to understand how to link pil32 with C code, so I had a 
look at the gcc.l file and the Darwin section might not run on a 64 bits mac, 
because it uses the same arguments for gcc as the gl makefile. 

So, no problem on my side, but it would be nice if someone else could issue a 
proper fix (unless the real 64 bits for mac osx will be soon available).



> From: a...@software-lab.de
> To: picolisp@software-lab.de
> Subject: Re: PicoLisp on mac osx : bug
> Date: Tue, 19 Nov 2013 08:27:51 +0100
> Hello Denis,
> I have no Mac myself, but let me ask for understanding the problem.
>> I downloaded and installed Picolisp 32 bits on mac os 10.6. Everything
>> went all right. Then I tried to install the library for openGL and I had
>> to modify the makefile to build a 32 bits lib.
> I assume that you mean Jon Kleiser's library in "gl.tgz", right? This is
> currently the only way to get openGl on pil32.
> Another possibility might be running the pil64 emulator on the Mac.
> Should be built automatically if you 'make' in the src64 directory. In
> pil64 you can use "lib/openGl.l", but unfortunately the emulator is much
> slower than native executables.
>> **********
>> DYNAMIC-LIB-FLAGS = -m32 -dynamiclib -undefined dynamic_lookup -framework 
>> OpenGL -framework GLUT
>> **********
>> I do not believe the -framework OpenGL is required, but it may be cleaner
>> **********
>> c.o:
>> gcc -c -O -m32 -pipe \
>> -falign-functions -fomit-frame-pointer -fno-strict-aliasing \
>> -W -Wimplicit -Wreturn-type -Wunused -Wformat \
>> -Wuninitialized -Wstrict-prototypes \
>> **********
>> I had the -m32. I had the -fno-strict-aliasing, I do not know if it is
>> required, but PicoLisp need it and there is some code in the pico.h file
>> which is included.
>> I am no makefile specialist. Adding -m32 will impact compilation on
>> the other platforms. There may be better ways to fix it too.
>> The lib/gcc.l file may need a similar fix, but I have not try to use
>> it.
>> The problem arises on 64 bits macs which support both kind of binaries
>> : 64 seems to be the default.
> So this is what I don't understand. What exactly is the problem?
> ♪♫ Alex
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