Log Message:
Fix alsa option. This is the only roadblock for import to HEAD as portaudio2.
Build fails here:

libtool: compile:  cc -c -mfpmath=sse -msse3 -march=native \ 
-I/usr/pkgsrc/dev/wip/portaudio/work/.buildlink/include -DPA_LITTLE_ENDIAN \ 
-I./include -I./src/common -I./src/os/unix -pthread \ 
-DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" \ 
-DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" \ 
-DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -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_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 \ 
-DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" \ 
-DHAVE_SYS_SOUNDCARD_H=1 -DHAVE_MACHINE_SOUNDCARD_H=1 -DSIZEOF_SHORT=2 \ 
-DSIZEOF_INT=4 -DSIZEOF_LONG=8 -DHAVE_CLOCK_GETTIME=1 -DHAVE_NANOSLEEP=1 \ 
-DPA_USE_ALSA=1 -DPA_USE_OSS=1 src/hostapi/alsa/pa_linux_alsa.c  -fPIC -DPIC -o \ 
src/hostapi/alsa/.libs/pa_linux_alsa.o
src/hostapi/alsa/pa_linux_alsa.c:176:1: warning: \ 
'snd_pcm_sw_params_set_xfer_align' is deprecated (declared at \ 
/usr/pkgsrc/dev/wip/portaudio/work/.buildlink/include/alsa/pcm.h:1123)
src/hostapi/alsa/pa_linux_alsa.c: In function 'PaAlsa_LoadLibrary':
src/hostapi/alsa/pa_linux_alsa.c:455:1: warning: \ 
'snd_pcm_sw_params_set_xfer_align' is deprecated (declared at \ 
/usr/pkgsrc/dev/wip/portaudio/work/.buildlink/include/alsa/pcm.h:1123)
src/hostapi/alsa/pa_linux_alsa.c: In function 'PaAlsaStreamComponent_EndProcessing':
src/hostapi/alsa/pa_linux_alsa.c:3429:34: error: 'ESTRPIPE' undeclared (first \ 
use in this function)
src/hostapi/alsa/pa_linux_alsa.c:3429:34: note: each undeclared identifier is \ 
reported only once for each function it appears in
src/hostapi/alsa/pa_linux_alsa.c: In function \ 
'PaAlsaStreamComponent_RegisterChannels':
src/hostapi/alsa/pa_linux_alsa.c:3967:38: error: 'ESTRPIPE' undeclared (first \ 
use in this function)
gmake: *** [src/hostapi/alsa/pa_linux_alsa.lo] Error 1
*** Error code 2