=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Building for argon2-20151102
rm -f argon2 bench genkat
rm -f libargon2. libargon2.a kat-argon2* 
rm -rf *.dSYM
cd src/ && rm -f *.o
cd src/blake2/ && rm -f *.o
cd kats/ &&  rm -f kat-* diff* run_* make_*
gcc -std=c89 -pthread -O3 -Wall -g src/argon2.c src/core.c src/blake2/blake2b.c src/thread.c src/ref.c src/run.c -Isrc  -o argon2
In file included from src/core.c:31:
src/thread.h:18:10: fatal error: 'pthread.h' file not found
#include <pthread.h>
         ^
1 error generated.
In file included from src/thread.c:1:
src/thread.h:18:10: fatal error: 'pthread.h' file not found
#include <pthread.h>
         ^
1 error generated.
Makefile:66: recipe for target 'argon2' failed
gmake: *** [argon2] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /usr/pkgsrc/security/argon2
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/security/argon2