When I tried to build pulseaudio-2.0 it intially failed as below: --- [...] checking for gm4... no checking for m4... no configure: error: m4 missing !!! Please attach the following file when seeking support: !!! /var/tmp/portage/media-sound/pulseaudio-2.0/work/pulseaudio-2.0/config.log * ERROR: media-sound/pulseaudio-2.0 failed (configure phase): * econf failed --- After manually emerging m4 the build succeeds. --- ✦ emerge --info =media-sound/pulseaudio-2.0 Portage 2.2.0_alpha103 (default/linux/amd64/10.0, gcc-4.7.0, glibc-2.15-r1, 3.4.0-rc6 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.4.0-rc6-x86_64-Intel-R-_Core-TM-_i7-2620M_CPU_@_2.70GHz-with-gentoo-2.1 Timestamp of tree: Fri, 11 May 2012 16:00:01 +0000 app-shells/bash: 4.2_p28 dev-lang/python: 2.7.3-r2, 3.2.3-r1 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.9.3 sys-apps/sandbox: 2.5 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.7.0::marduk sys-devel/gcc-config: 1.7 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.3 (virtual/os-headers) sys-libs/glibc: 2.15-r1 Repositories: gentoo marduk gnome gfxboot_overlay Installed sets: @system ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA IBM-J1.6 AdobeFlash-10.3 skype-eula" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo" CXXFLAGS="-O2 -march=native -pipe" DISTDIR="/var/portage/distfiles" EMERGE_DEFAULT_OPTS="--keep-going --usepkg --binpkg-respect-use=y --quiet-build --jobs --quiet-unmerge-warn --oneshot --autounmask=n --buildpkg-exclude virtual/* --buildpkg-exclude sys-kernel/*-sources --misspell-suggestions=n" FEATURES="assume-digests binpkg-logs buildpkg distlocks ebuild-locks fixlafiles news noinfo notitles parallel-fetch parse-eapi-ebuild-head protect-owned sandbox sfperms skiprocheck strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="ja" MAKEOPTS="-j5 -l5.0" PKGDIR="/var/portage/packages" PORTAGE_COMPRESS="" PORTAGE_COMPRESS_FLAGS="" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/var/portage" PORTDIR_OVERLAY="/var/lib/layman/marduk /var/lib/layman/gnome /usr/local/portage/gfxboot_overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acpi aes amd64 aperfmperf apic arat arch_perfmon avx bts cjk clflush cmov constant_tsc cx16 cx8 de ds_cpl dtes64 dts epb ept est flexpriority fpu fxsr ht ida introspection lahf_lm lm mca mce mmx monitor msr mtrr multilib nls nonstop_tsc nopl nx pae pam pat pbe pcid pclmulqdq pdcm pebs pge pln pni popcnt pse pse36 pts rdtscp sep smx ss sse sse2 sse4_1 sse4_2 ssse3 syscall tm tm2 tpr_shadow tsc tsc_deadline_timer unicode utf8 vme vmx vnmi vpid x2apic xsave xsaveopt xtopology xtpr" ALSA_PCM_PLUGINS="*" APACHE2_MODULES="auth_digest authn_file group_file dav dav_fs authz_groupfile" CAMERAS="*" CURL_SSL="openssl" DRACUT_MODULES="plymouth" ELIBC="glibc" FFTOOLS="*" INPUT_DEVICES="evdev synaptics" KERNEL="linux" LINGUAS="ja" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby19" USERLAND="GNU" VIDEO_CARDS="intel i915 i965" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= media-sound/pulseaudio-2.0 was built with the following: USE="X alsa bluetooth dbus equalizer glib gnome (multilib) realtime udev -asyncns -avahi -caps -doc -gdbm -ipv6 -jack -libsamplerate -lirc -orc (-oss) -ssl (-system-wide) -tcpd -test -webrtc-aec" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--no-as-needed" ---
Fixed in 2.0-r1.