fontconfig (2.6.0) uses libiconv (on Mac OS X anyway) but fontconfig.pc doesn't list -liconv in Libs.private. I believe this is the cause of some problems on Mac OS X building software that uses fontconfig, for example when trying to build a universal binary of tk (which uses libXft which uses fontconfig): http://trac.macports.org/ticket/18035 I see from the ChangeLog you've previously added -lexpat (bug #7683) and -lfreetype to Libs.private for similar reasons.
In my tree: commit 40da427e348eba2d9e87633307b55164c303ccdf Author: Behdad Esfahbod <behdad@behdad.org> Date: Tue Feb 3 17:15:52 2009 -0500 Add ICONV_LIBS to fontconfig.pc.in (#19606)
I believe I've fixed this in 2.7.0. Please reopen otherwise.
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