id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	difficulty	ghcversion	platform
170	pkg-config uses a more general version scheme	duncan		"From {{{HsOpenSSL.cabal}}}

{{{
  --PkgConfig-Depends: openssl >= 0.9.7l
  -- We really should use this instead of the configure 
  -- script but Cabal 1.2.2.0 can't handle the weird version
  -- scheme of OpenSSL.
}}}

For example:

{{{
$ pkg-config --modversion openssl
0.9.8f
}}}

Currently Cabal tries to map pkg-config versions to the standard {{{Version}}} type which only allows for a sequence of numbers.

pkg-config uses just strings to represent package versions. It uses code lifted from rpm to compare version strings. See the {{{compare_versions}}} function in {{{pkg-gconfig-0.22/pkg.c}}} from http://pkgconfig.freedesktop.org/releases/pkg-config-0.22.tar.gz"	defect	new	normal		Cabal library	1.8.0.6	normal			gtener@… hackage.haskell.org@…	normal	6.10.4	Linux