Updated my CURRENT VM to r362612, then tried to update my ports via portmaster. pkg fails with : 

cc -o pkg-static add.o alias.o annotate.o audit.o autoremove.o backup.o check.o clean.o config.o create.o delete.o event.o fetch.o globals.o info.o install.o lock.o main.o plugins.o query.o register.o repo.o rquery.o search.o set.o shell.o shlib.o ssh.o stats.o update.o updating.o upgrade.o utils.o version.o which.o -static  -fstack-protector-strong  -L/usr/ports/ports-mgmt/pkg/work/pkg-1.14.5/libpkg -lpkg_flat  -lelf -ljail -larchive -lbz2 -lz -llzma -lprivatezstd -lm -lssl -lcrypto -pthread -lutil
ld: error: undefined symbol: _libmd_SHA256_Init
>>> referenced by check.h:143 (/usr/src/contrib/xz/src/liblzma/check/check.h:143)
>>>               check.o:(lzma_check_init) in archive /usr/lib/liblzma.a

ld: error: undefined symbol: _libmd_SHA256_Update
>>> referenced by check.h:160 (/usr/src/contrib/xz/src/liblzma/check/check.h:160)
>>>               check.o:(lzma_check_update) in archive /usr/lib/liblzma.a

ld: error: undefined symbol: _libmd_SHA256_Final
>>> referenced by check.h:167 (/usr/src/contrib/xz/src/liblzma/check/check.h:167)
>>>               check.o:(lzma_check_finish) in archive /usr/lib/liblzma.a
cc: error: linker command failed with exit code 1 (use -v to see invocation)
*** [pkg-static] Error code 1

Tried with MAKE_JOBS_UNSAFE=yes , same thing.