Tried with different flags. mv -f ucd-snmp/.libs/pass_persist.lo ucd-snmp/pass_persist.lo /bin/sh ../../libtool --mode=compile i686-pc-linux-gnu-gcc -I../../include -I. -I../../agent -I../../agent/mibgroup -I../../snmplib -fno-strict-aliasing -pipe -Wdeclaration-after-statement -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -I/usr/lib/perl5/5.8.8/i686-linux/CORE -O2 -march=i686 -pipe -fomit-frame-pointer -Dlinux -c -o ucd-snmp/disk.lo ucd-snmp/disk.c rm -f ucd-snmp/.libs/disk.lo i686-pc-linux-gnu-gcc -I../../include -I. -I../../agent -I../../agent/mibgroup -I../../snmplib -fno-strict-aliasing -pipe -Wdeclaration-after-statement -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -I/usr/lib/perl5/5.8.8/i686-linux/CORE -O2 -march=i686 -pipe -fomit-frame-pointer -Dlinux -c ucd-snmp/disk.c -fPIC -DPIC -o ucd-snmp/.libs/disk.lo ucd-snmp/disk.c:233:36: error: operator '||' has no right operand ucd-snmp/disk.c:281:36: error: operator '||' has no right operand ucd-snmp/disk.c:377:19: error: #if with no expression ucd-snmp/disk.c:400:36: error: operator '||' has no right operand ucd-snmp/disk.c:471:19: error: #if with no expression ucd-snmp/disk.c:497:36: error: operator '||' has no right operand make[2]: *** [ucd-snmp/disk.lo] Error 1 make[2]: Leaving directory `/var/tmp/portage/net-snmp-5.2.1.2-r1/work/net-snmp-5.2.1.2/agent/mibgroup' make[1]: *** [subdirs] Error 1 make[1]: Leaving directory `/var/tmp/portage/net-snmp-5.2.1.2-r1/work/net-snmp-5.2.1.2/agent' make: *** [subdirs] Error 1 !!! ERROR: net-analyzer/net-snmp-5.2.1.2-r1 failed. Call stack: ebuild.sh, line 1546: Called dyn_compile ebuild.sh, line 937: Called src_compile net-snmp-5.2.1.2-r1.ebuild, line 108: Called die ================================================================= router ~ # emerge --info Portage 2.1.1-r2 (default-linux/x86/no-nptl, gcc-4.1.1, glibc-2.3.6-r5, 2.6.17-hardened-r1 i686) ================================================================= System uname: 2.6.17-hardened-r1 i686 Intel(R) Pentium(R) M processor 1.73GHz Gentoo Base System version 1.12.6 Last Sync: Wed, 10 Jan 2007 00:30:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: [Not Present] dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /var/bind" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=i686 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 acpi alsa_cards_ali5451 alsa_cards_als4000 alsa_cards_atiixp alsa_cards_atiixp-modem alsa_cards_bt87x alsa_cards_ca0106 alsa_cards_cmipci alsa_cards_emu10k1x alsa_cards_ens1370 alsa_cards_ens1371 alsa_cards_es1938 alsa_cards_es1968 alsa_cards_fm801 alsa_cards_hda-intel alsa_cards_intel8x0 alsa_cards_intel8x0m alsa_cards_maestro3 alsa_cards_trident alsa_cards_usb-audio alsa_cards_via82xx alsa_cards_via82xx-modem alsa_cards_ymfpci alsa_pcm_plugins_adpcm alsa_pcm_plugins_alaw alsa_pcm_plugins_asym alsa_pcm_plugins_copy alsa_pcm_plugins_dmix alsa_pcm_plugins_dshare alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty alsa_pcm_plugins_extplug alsa_pcm_plugins_file alsa_pcm_plugins_hooks alsa_pcm_plugins_iec958 alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa alsa_pcm_plugins_lfloat alsa_pcm_plugins_linear alsa_pcm_plugins_meter alsa_pcm_plugins_mulaw alsa_pcm_plugins_multi alsa_pcm_plugins_null alsa_pcm_plugins_plug alsa_pcm_plugins_rate alsa_pcm_plugins_route alsa_pcm_plugins_share alsa_pcm_plugins_shm alsa_pcm_plugins_softvol apache2 apm bash-completion berkdb bgpclassless bzip2 caps cgi chroot cracklib crypt devmap dlloader eds elf elibc_glibc ethereal extensions fix-connected-rt ftp gdbm gmp hardened imq input_devices_evdev input_devices_keyboard input_devices_mouse iproute2 kernel_linux l7filter logrotate memlimit mhash minimal multipath multiuser ncurses openssl ospfapi pcre perl png posix python readline reiserfs serial session shaper smux snmp sockets ssl syslog tcp-zebra tcpd tcpmd5 threads userland_GNU utf8 vhosts video_cards_apm video_cards_ark video_cards_ati video_cards_chips video_cards_cirrus video_cards_cyrix video_cards_dummy video_cards_fbdev video_cards_glint video_cards_i128 video_cards_i740 video_cards_i810 video_cards_imstt video_cards_mga video_cards_neomagic video_cards_nsc video_cards_nv video_cards_rendition video_cards_s3 video_cards_s3virge video_cards_savage video_cards_siliconmotion video_cards_sis video_cards_sisusb video_cards_tdfx video_cards_tga video_cards_trident video_cards_tseng video_cards_v4l video_cards_vesa video_cards_vga video_cards_via video_cards_vmware video_cards_voodoo xml zip zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Same thing just cropped up for me; re-emerging because I added the lm_sensors flag.
*** This bug has been marked as a duplicate of bug 156178 ***