C library to send push notifications to Apple devices

Current versions

libcapn requires the following formulae to be installed:
cmake 3.11.1 Cross-platform make
pkg-config 0.29.2 Manage compile and link flags for libraries
openssl 1.0.2o_1 SSL/TLS cryptography library

Recent formula history

Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
ilovezfs libcapn 2.0.0
ilovezfs libcapn 1.1.0, 2.0.0-beta (devel)
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages

Formula code at GitHub