The error I see is:

mkdir .libs
  cc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"SDL\" -DVER
SION=\"1.2.8\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRING
S_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DHAVE_ALLOCA=1 -I. -I/var/obj/pkg/multimedia/mpeg4ip/work.i3
86/.buildlink/include -DGLX_GLXEXT_LEGACY -I/var/obj/pkg/multimedia/mpeg4ip/work.i386/.buildlink/include/freetype2 -O2 -Wall -DDISKAUD_SUPPO
RT -DUSE_DLOPEN -DOSS_SUPPORT -DHAVE_SIGACTION -DSUNAUDIO_SUPPORT -Dunix -I../../../include -I../../../include/SDL -I../../../src -I../../..
/src/main/netbsd -I../../../src/audio -I/var/obj/pkg/multimedia/mpeg4ip/work.i386/.buildlink/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT -D_THR
EAD_SAFE -MT SDL_sunaudio.lo -MD -MP -MF .deps/SDL_sunaudio.Tpo -c SDL_sunaudio.c  -fPIC -DPIC -o .libs/SDL_sunaudio.o
SDL_sunaudio.c: In function 'DSP_PlayAudio':
SDL_sunaudio.c:168: error: invalid storage class for function 'snd2au'
SDL_sunaudio.c:184: warning: implicit declaration of function 'snd2au'
SDL_sunaudio.c: At top level:
SDL_sunaudio.c:406: error: conflicting types for 'snd2au'
SDL_sunaudio.c:184: error: previous implicit declaration of 'snd2au' was here
*** Error code 1


-- 
Hisashi T Fujinaka - htodd@twofifty.com
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte