/usr/lib/libcrypt.a(md5-crypt.o): In function `__md5_crypt_r':
(.text+0x99): undefined reference to `NSSLOW_Init'
That's not part of OpenSSL:
openssl-1.0.1f$ grep -r NSSLOW_Init *
openssl-1.0.1f$
libcrypt.a
libcrypt
is part of NSS. NSS is is Mozilla's Network Security Services library. You can read about it here: https://developer.mozilla.org/en-US/docs/NSS.