=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Checksum SHA1 OK for mpg321-0.2.13-4.tar.gz
=> Checksum RMD160 OK for mpg321-0.2.13-4.tar.gz
===> Installing dependencies for mpg321-0.2.13.4
=> Full dependency libao-[a-z]*-[0-9]*: found libao-sun-1.2.0
=> Full dependency libao>=1.0.0: found libao-1.2.0
=> Full dependency libid3tag>=0.15.1bnb1: found libid3tag-0.15.1bnb2
=> Full dependency libmad>=0.15.1bnb1: found libmad-0.15.1bnb1
===> Overriding tools for mpg321-0.2.13.4
===> Extracting for mpg321-0.2.13.4
===> Patching for mpg321-0.2.13.4
=> Applying pkgsrc patches for mpg321-0.2.13.4
===> Creating toolchain wrappers for mpg321-0.2.13.4
===> Configuring for mpg321-0.2.13.4
=> Modifying GNU configure scripts to avoid --recheck
=> Replacing config-guess with pkgsrc versions
=> Replacing config-sub with pkgsrc versions
=> Replacing install-sh with pkgsrc version
checking for a BSD-compatible install... /usr/bin/install -c -o root -g operator
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... /usr/bin/awk
checking whether make sets $(MAKE)... yes
checking for gawk... (cached) /usr/bin/awk
checking for i386-elf32-minix-gcc... cc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether cc accepts -g... yes
checking for cc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of cc... gcc3
checking whether ln -s works... yes
checking for mad_decoder_run in -lmad... yes
checking for compress2 in -lz... yes
checking for id3_tag_new in -lid3tag... yes
checking for pthread_create in -lpthread... no
configure: error: "POSIX Threads is required to compile mpg321."
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/audio/mpg321
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/audio/mpg321