Before I investigate any further, is there any known problem with the ebuild of mpfr last update ? Here's what I get:
!!! Please attach the following file when seeking support: !!! /var/tmp/portage/dev-libs/mpfr-2.4.2_p3/work/mpfr-2.4.2/config.log * ERROR: dev-libs/mpfr-2.4.2_p3 failed (compile phase): * econf failed * * Call stack: * ebuild.sh, line 56: Called src_compile * environment, line 2364: Called _eapi0_src_compile * ebuild.sh, line 623: Called econf * ebuild.sh, line 557: Called die * The specific snippet of code: * die "econf failed" * * If you need support, post the output of 'emerge --info =dev-libs/mpfr-2.4.2_p3', * the complete build log and the output of 'emerge -pqv =dev-libs/mpfr-2.4.2_p3'. * The complete build log is located at '/var/tmp/portage/dev-libs/mpfr-2.4.2_p3/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-libs/mpfr-2.4.2_p3/temp/environment'. * S: '/var/tmp/portage/dev-libs/mpfr-2.4.2_p3/work/mpfr-2.4.2' >>> Failed to emerge dev-libs/mpfr-2.4.2_p3, Log file: >>> '/var/tmp/portage/dev-libs/mpfr-2.4.2_p3/temp/build.log'