=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for b2sum-20160619
gcc b2sum.c ../sse/blake2b.c ../sse/blake2s.c ../sse/blake2bp.c ../sse/blake2sp.c -O2 -mieee -D_FORTIFY_SOURCE=2 -std=c99 -I../sse   -o b2sum
In file included from ../sse/blake2b.c:23:0:
../sse/blake2-config.h:70:2: error: #error "This code requires at least SSE2."
 #error "This code requires at least SSE2."
  ^
../sse/blake2b.c:28:23: fatal error: emmintrin.h: No such file or directory
compilation terminated.
In file included from ../sse/blake2s.c:23:0:
../sse/blake2-config.h:70:2: error: #error "This code requires at least SSE2."
 #error "This code requires at least SSE2."
  ^
../sse/blake2s.c:26:23: fatal error: emmintrin.h: No such file or directory
compilation terminated.
*** Error code 1

Stop.
make: stopped in /tmp/pkgbuild/sysutils/b2sum/work.alpha/BLAKE2-20160619/b2sum
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/sysutils/b2sum
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/sysutils/b2sum