C library to send push notifications to Apple devices

Current versions

libcapn requires the following formulae to be installed:
cmake 3.9.6 Cross-platform make
pkg-config 0.29.2 Manage compile and link flags for libraries
openssl 1.0.2m SSL/TLS cryptography library

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
Johnathan Conley libcapn 1.0.0
Mike McQuaid libcapn: don’t use pkg-config in test.
Jack Nagel Don't assume cflags is non-nil
nickl- libcapn stable 1.0.0b3, HEAD