configure: improve the help text for external libraries
authorAnton Khirnov <anton@khirnov.net>
Tue, 3 May 2016 04:38:22 +0000 (06:38 +0200)
committerAnton Khirnov <anton@khirnov.net>
Thu, 19 May 2016 11:40:53 +0000 (13:40 +0200)
commit5e2203448ab4cc8ea1d933b87f1b39b009201044
treea11369407a591d43da738cf8cb95237b6a401add
parent0d95d88fbd1aeadafb8b0b1bfb880bf21b33132c
configure: improve the help text for external libraries

Add a more accurate description of what the switches actually do (i.e.
allow using the given library, not enabling the corresponding
codecs etc.).

Replace the library descriptions, in many cases boilerplate text without
useful information, with a short summary of what the library does.
configure