Include pkg.m4, don't assume that the system has it.
Include pkg.m4, don't assume that the system has it.

GreatFruitOmsk/libsodium,mvduin/libsodium,JackWink/libsodium,pmienk/libsodium,JackWink/libsodium,Payshare/libsodium,soumith/libsodium,pmienk/libsodium,GreatFruitOmsk/libsodium,Payshares/libsodium,zhuqling/libsodium,rustyhorde/libsodium,optedoblivion/android_external_libsodium,tml/libsodium,CyanogenMod/android_external_dnscrypt_libsodium,CyanogenMod/android_external_dnscrypt_libsodium,SpiderOak/libsodium,zhuqling/libsodium,Payshare/libsodium,pyparallel/libsodium,mvduin/libsodium,HappyYang/libsodium,eburkitt/libsodium,paragonie-scott/libsodium,paragonie-scott/libsodium,pyparallel/libsodium,akkakks/libsodium,optedoblivion/android_external_libsodium,netroby/libsodium,akkakks/libsodium,pmienk/libsodium,donpark/libsodium,pyparallel/libsodium,kytvi2p/libsodium,Payshares/libsodium,eburkitt/libsodium,Payshares/libsodium,donpark/libsodium,optedoblivion/android_external_libsodium,SpiderOak/libsodium,kytvi2p/libsodium,kytvi2p/libsodium,akkakks/libsodium,CyanogenMod/android_external_dnscrypt_libsodium,SpiderOak/libsodium,rustyhorde/libsodium,HappyYang/libsodium,paragonie-scott/libsodium,JackWink/libsodium,rustyhorde/libsodium,akkakks/libsodium,soumith/libsodium,Payshare/libsodium,SpiderOak/libsodium,netroby/libsodium,tml/libsodium,netroby/libsodium,donpark/libsodium,tml/libsodium,GreatFruitOmsk/libsodium,mvduin/libsodium,soumith/libsodium,rustyhorde/libsodium,zhuqling/libsodium,HappyYang/libsodium,eburkitt/libsodium