--exists processing Requires.private creates unnecessary depencencies
Submitted by Mikhail Zabaluev
Assigned to Tollef Fog Heen
Carried over from the discussion on bug #3097. Checking depencencies listed in the Requires.private field when performing --exists effectively creates buildtime dependencies that are unnecessary for pure dynamic builds. For example, cairo now lists libpng12 in Requires.private, and every configure script that tests for cairo now fails if libpng12.pc is not present, even though libpng is not needed for all-dynamic linking. Proposed solution: --exists should also ignore Requires.private unless --static flag has been specified.