net-libs/rb_libtorrent-0.16.5 depends on boost 1.48 and later, but a build with 1.49 failed. Works fine on the exact same system with 1.52. Reproducible: Always Portage 2.2.0_alpha147 (default/linux/amd64/10.0/desktop, gcc-4.7.2, glibc-2.16.0, 3.6.8-gentoo.rivendell x86_64) ================================================================= System uname: Linux-3.6.8-gentoo.rivendell-x86_64-Intel-R-_Xeon-R-_CPU_X5482_@_3.20GHz-with-gentoo-2.2 Timestamp of tree: Sun, 16 Dec 2012 02:15:01 +0000 ld GNU ld (GNU Binutils) 2.23.1 ccache version 3.1.8 [disabled] app-shells/bash: 4.2_p39 dev-java/java-config: 2.1.12 dev-lang/python: 2.7.3-r2, 3.2.3-r1 dev-util/ccache: 3.1.8 dev-util/cmake: 2.8.9 dev-util/pkgconfig: 0.27.1 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.6 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.9.6-r3, 1.10.3, 1.11.6, 1.12.5 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.7.2 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.6 (virtual/os-headers) sys-libs/glibc: 2.16.0
Please attach the full build.log from the failed build.