Bugzilla Bug 36644

checking audio/audiolib.h presence... yes
checking for audio/audiolib.h... yes
configure: error: conditional "HAVE_ESD" was never defined.
Usually this means the macro was only invoked conditionally.

!!! ERROR: media-libs/libao-0.8.4-r1 failed.
!!! Function econf, Line 338, Exitcode 1
!!! econf failed

media-libs/libao-0.8.4 emerged well some month ago. I'm USE -esd in make.conf.

emerge info
Portage 2.0.49-r18 (default-x86-1.4, gcc-3.3.2, glibc-2.3.3_pre20031222-r0,2.2.5-r7, 2.4.23-pre7)
=================================================================
System uname: 2.4.23-pre7 i686 Intel(R) Pentium(R) 4 Mobile CPU 1.60GHz
Gentoo Base System version 1.4.3.12
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-march=pentium4 -Os -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /opt/tomcat/conf /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3/share/config /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-march=pentium4 -Os -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://ftp.easynet.nl/mirror/gentoo/ ftp://gentoo.inode.at/source/ http://gentoo.linux.no/ "
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/ebuilds"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X aalib acpi acpi4linux apache2 apm avi berkdb bonobo cdr crypt cups dga directfb dvd encode fbcon foomaticdb gd gdbm gif gnome gphoto2 gtk gtk2 gtkhtml guile hbci imlib java jpeg junit kde lame libg++ libwww mad mikmod motif mozilla moznoxft mpeg mysql nas ncurses nls nvidia oci8 oggvorbis opengl oss pam pcmcia pdflib perl png pnp ppds python qt quicktime readline ruby samba sasl scanner sdl slang slp snmp spell sse sse2 ssl svga tcltk tcpd tetex tiff truetype trusted usb vi vim vim-with-x x86 xml2 xmms xv zlib"

do you have esound installed in your system or not?

okay, updated -r1 with a new patch for configure{.in}  as this should fix the
error.

please resync and it should be gone

Yes, esound is installed at my box. The new ebuild is not in portage yet, so
i'll come back to here if the problem still exist...