merkaartor-0.18.1 $ grep qtsingleapplication-2.6_1-opensource src/src.pro -a1 include(../3rdparty/qtsingleapplication-2.6_1-opensource/src/qtsingleapplication.pri) include(../3rdparty/qttoolbardialog-2.2_1-opensource/src/qttoolbardialog.pri) Also git version uses internal copy of quazip: https://gitorious.org/merkaartor/main/source/2d51cab30924999634a43b78e954d1745d5dcd28:src/src.pro#L12 You can use this as example of fixing qmake build system: https://code.google.com/p/quite-rss/source/detail?r=eb1892cbe9a0
Asked upstream to accept my patch.
Created attachment 400220 [details, diff] system-libs.patch
Created attachment 400222 [details, diff] merkaartor-0.18.1-system-libs.patch
Created attachment 400224 [details] merkaartor-9999.ebuild
Created attachment 400226 [details] merkaartor-0.18.1.ebuild
Created attachment 400228 [details] metadata.xml Attached ebuilds work fine for me, please commit.
*merkaartor-0.18.1-r1 (31 Mar 2015) 31 Mar 2015; Justin Lecher <jlec@gentoo.org> +files/merkaartor-0.18.1-system-libs.patch, +files/merkaartor-9999-system-libs.patch, +merkaartor-0.18.1-r1.ebuild, merkaartor-0.17.2.ebuild, merkaartor-0.18.1.ebuild, merkaartor-9999.ebuild, metadata.xml: Use system libs instead of bundled ones, bug #487512; thanks Nikoli for the patch; update live ebuild to new repo location, bug #544862