Re: [Plib-users] Building Plib on Mac OSX (Darwin)

[Reed H. <re...@ze...>]

Hi, thanks for the help.

Since sending that message I found AGL and used that, and Plib builds. 
Here is what
I did to get ssg building, and similiar modifications to sg and util:

1. added "-framework OpenGL -framework AGL -framework CoreServices" to 
LIBS in the Makefile
2.  changed some #include statements accordingly:
	from <GL/foo.h> to <OpenGL/foo.h>
	from <ag.h> to <AGL/agl.h>
	from <CodeFragments.h> in util/ul.h to 
<CoreServices/CoreServices.h>. I also added #include <unistd.h> to 
util/ul.h after CoreServices (for the sleep() function)
2. remove "-O6" from CXXFLAGS and CFLAGS in the Makefile ??? where did 
this come from ???
3. add -Dmacintosh to DEFS in the Makefile.
4. changed int vp [ 4 ] ; on line 202 of ssg.cxx to GLint vp [ 4 ] ;
5. changed int ww; on line 112 of ssgLoadTexture.cxx to GLint ww;

Frameworks are Darwin's way of doing libraries, they are versioned 
bundles (directories, actually) of headers,
libraries and resources...
to link to a framework SOMEFW, you pass '-framework SOMEFW' to cc, and 
to include header files out of it
you include <SOMEFW/header.h>.  Frameworks are a nice idea... but a pain 
in the ass for porting stuff from other
unix platforms...


I'm working on the Tux example program now. Here is the error, which has 
me stumped. I will try to enlist the help
of some people who know more about OSX than me...

linked to -framework GLUT and include <GLUT/glut.h> instead of 
<GL/glut.h>.


make:
c++  -g -O2 -Wall  -o tux_example  tux_example.o -lplibssg -lplibsg 
-lplibul -lpthread   -lm -framework OpenGL -framework AGL -framework 
CoreServices -framework GLUT
/usr/bin/ld: /usr/lib/crt1.o illegal reference to symbol: __objcInit 
defined in indirectly referenced dynamic library /usr/lib/libobjc.A.dylib
make: *** [tux_example] Error 1



--

Reed Hedges
re...@ze...
http://zerohour.net/~reed

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