Latest mono installs mono.pc which is now broken (missing Cflags and Ldflags entries) and other packages which relying on it will now miscompile. chroot pkgconfig # cat mono.pc prefix=${pcfiledir}/../.. exec_prefix=${pcfiledir}/../.. libdir=${prefix}/lib64 includedir=${prefix}/include/mono-2.0 sysconfdir=/etc Name: Mono Description: Mono Runtime Version: 2.8 mono-2.pc file is useful however. Even if it's supposed to be a new mono pkg-config entry superseding mono.pc, old one should work nevertheless, maybe even being symlink to mono-2.pc. chroot pkgconfig # cat mono-2.pc prefix=${pcfiledir}/../.. exec_prefix=${pcfiledir}/../.. libdir=${prefix}/lib64 includedir=${prefix}/include/mono-2.0 sysconfdir=/etc Name: Mono Description: Mono Runtime Version: 2.8 Libs: -L${libdir} -lmono-2.0 -lm -lrt -ldl -lpthread Cflags: -I${includedir} -D_REENTRANT
As talked with upstream, this is the expected behavior: "mono-2.pc is for C embedding. mono.pc is for .NET. The change is intentional." But feel free to reopen if it is causing some problem (you refer to some mis-compilation problem but without providing and example neither build.log)
