[LordRPI]

Trying to get libmpeg2 working on OS X....

Everthing compiles fine (after my tweaking for CC instead of gcc) but I get this in the linker:

/bin/sh ../libtool --mode=link cc -g -O3 -fomit-frame-pointer -faltivec -force_cpusubtype_ALL -Wall -flat_namespace -o mpeg2dec mpeg2dec.o getopt.o ../libmpeg2/libmpeg2.la ../libvo/libvo.a -lSM -lICE -L/usr/X11R6/lib -lX11 -lXext libcpuaccel.la
cc -g -O3 -fomit-frame-pointer -faltivec -force_cpusubtype_ALL -Wall -flat_namespace -o mpeg2dec mpeg2dec.o getopt.o ../libmpeg2/.libs/libmpeg2.a ../libvo/libvo.a -lSM -lICE -L/usr/X11R6/lib -lX11 -lXext ./.libs/libcpuaccel.a
/usr/bin/ld: Undefined symbols:

_mpeg2_cpu_state_init
_mpeg2_idct_altivec_init

_mpeg2_mc_altivec
_arch_accel
make[1]: *** [mpeg2dec] Error 1
make: *** [all-recursive] Error 1


I'm not exactly sure what this means... Are there any flags for the linker I should use? Or is it a problem with the library code... and in that case, what do I do? How do I define a symbol?

TIA,
David

[pedemonte]

A link error means that there is a line of code that is making reference to a symbol (it can be a variable, or function, etc), that has not been defined. In this case, it looks like you are missing four functions. You are probably not linking in the object file that contains these symbols. So do a search in your code (in the .c or .cpp files) for "mpeg2_cpu_state_init", for example (the leading underscore is added by the compiler). Then pass that to the libtool line that you had below. Make sense?

[LordRPI]

Yeah, I got it... actually got it figured out... they were being cut off by the preprocessor... figures I got the stuff off of sourceforge... after every revision, it's like... IT'LL COMPILE CORRECTLY THIS TIME!