checking whether to check for GCC pthread/shared inconsistencies... yes
checking whether -pthread is sufficient with -shared... no
checking whether -lpthread fixes that... no
checking whether -lc_r fixes that... no
configure: WARNING: Impossible to determine how to use pthreads with shared libraries
configure: error: Missing POSIX Threads support
*** Error code 1

Stop.
make: stopped in /home/builds/pkgsrc/wip/libnms
WARNING: *** Please consider adding USE_LANGUAGES+=c++ to the package Makefile.
WARNING: *** Please consider adding USE_LANGUAGES+=fortran to the package Makefile.
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/wip/libnms
#