checking for CRYPTO... no configure: error: Package requirements (nss) were not met:
Package 'nss', required by 'virtual:world', not found
Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix.
Alternatively, you may set the environment variables CRYPTO_CFLAGS and CRYPTO_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.
