gcc -I. -I. -I/usr/lib/ruby/1.8/i686-linux -I. -DHAVE_RB_DEFINE_ALLOC_FUNC -DHAVE_RB_BLOCK_PROC -DHAVE_OBJECT_ALLOCATE -DHAVE_NODE_ATTRASGN -DRUBY_GTK2_TARGET=\"x11\" -DHAVE_GTK_PLUG_GET_TYPE -DHAVE_GTK_SOCKET_GET_TYPE -DHAVE_PANGO_RENDER_PART_GET_TYPE -DHAVE_XREADBITMAPFILEDATA -DHAVE_X11_XLIB_H -DHAVE_XGETERRORTEXT -DRUBY_GTK2_COMPILATION -I/usr/lib/ruby/site_ruby/1.8/i686-linux -fPIC -O2 -march=i686 -pipe -fPIC -Wall -pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/cairo -I/var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/glib/src -I/var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/pango/src -c rbgdkpango.c In file included from rbgdkpango.c:13: /var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/pango/src/rbpango.h:22:28: error: rbpangoversion.h: No such file or directory /var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/pango/src/rbpango.h:24:24: error: missing binary operator before token "(" /var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/pango/src/rbpango.h:61:24: error: missing binary operator before token "(" /var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/pango/src/rbpango.h:84:24: error: missing binary operator before token "(" make[1]: *** [rbgdkpango.o] Error 1 make[1]: Leaving directory `/var/tmp/portage/dev-ruby/ruby-gtk2-0.14.1/work/ruby-gnome2-all-0.14.1/gtk/src' make: *** [all] Error 2 !!! ERROR: dev-ruby/ruby-gtk2-0.14.1 failed. Portage 2.1.2_pre2-r9 (default-linux/x86/2006.1, gcc-4.1.1, glibc-2.4-r3, 2.6.16.16 i686) ================================================================= System uname: 2.6.16.16 i686 AMD Athlon(tm) 64 Processor 3200+ Gentoo Base System version 1.6.14 Last Sync: Fri, 13 Oct 2006 14:50:01 +0000 ccache version 2.3 [enabled] 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: 2.3 dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.9.6-r2 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r4 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=i686 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig buildpkg ccache distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="ftp://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ ftp://212.219.56.134/sites/www.ibiblio.org/gentoo/ ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo" 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" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync12.de.gentoo.org/gentoo-portage" USE="x86 X berkdb bitmap-fonts cli crypt cups dlloader dri elibc_glibc fortran gdbm gpm input_devices_evdev input_devices_keyboard input_devices_mouse ipv6 isdnlog kernel_linux libg++ ncurses nls nptl nptlonly pam pcre perl ppds pppd python readline reflection session spl ssl tcpd truetype-fonts type1-fonts udev unicode userland_GNU 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 xorg zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS
What ruby-pango version you were installing? Did it have rbpangoversion.h? I tried with both ruby-pango 0.14.1 and 0.15.0 without problems.
please tell us what pango and gtk version are you running. Can you try with the new 0.16.0 version ?
closing for now... if you have more information please fill it.