After I upgraded PHP to 5.0.5-r5, I receive the following error in squirrelmail: Fatal error: Only variables can be passed by reference in /var/www/localhost/htdocs/squirrelmail/functions/imap_messages.php on line 480 > epm -q php squirrelmail php-5.0.5-r5 squirrelmail-1.4.5 My emerge --info: Portage 2.0.54 (default-linux/x86/2005.1, gcc-3.4.4, glibc-2.3.5-r2, 2.6.12.3 i686) ================================================================= System uname: 2.6.12.3 i686 Pentium III (Coppermine) Gentoo Base System version 1.6.14 dev-lang/python: 2.4.2 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=pentium3 -O2 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/alias /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium3 -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp://mirror.pudas.net/gentoo http://trumpetti.atm.tut.fi/gentoo http://gentoo.inode.at/ ftp://ftp.linux.ee/pub/gentoo/distfiles/ ftp://gentoo.inode.at/source/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="x86 X acl apache2 arts audiofile avi berkdb bitmap-fonts bzip2 cdr cgi cli crypt cups curl eds emboss encode esd exif expat fam ffmpeg foomaticdb fortran gd gdbm gif glut gmp gpm gstreamer gtk gtk2 idn imagemagick imap imlib java jpeg kde lcms libg++ libwww mad maildir mhash mikmod mng motif mozilla mp3 mpeg mysql ncurses nls nptl nptlonly nsplugin ogg oggvorbis opengl oss pam pcre pdflib perl php png python qt quicktime readline samba sdl session slang spell ssl svga tcltk tcpd threads tiff truetype truetype-fonts type1-fonts udev usb vorbis xml xml2 xmms xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY
Known upstream issue... http://www.squirrelmail.org/wiki/BrowseProblemsByPhpError
Fixed in 1.4.5-r1 (Bug 108394).