I'm trying to compile a GTK2 app on AMD64 sid, but keep getting errors about missing pkgconfig files, eg. /usr/lib/pkgconfig/xext.pc and /usr/lib/pkgconfig/xi.pc. These files should be in libxext-dev and libxi-dev according to the package file search facility on debian.org, but I've installed these packages and the files are missing. Can anyone tell me where they've been moved to? John