ImportError: No module named libxml2
make[2]: *** [de/evolution.xml] Error 1
make[2]: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "/usr/bin/xml2po", line 35, in <module>
    import libxml2
ImportError: No module named libxml2
Traceback (most recent call last):
  File "/usr/bin/xml2po", line 35, in <module>
    import libxml2
ImportError: No module named libxml2
make[2]: *** [es/evolution.xml] Error 1
make[2]: *** [en_GB/evolution.xml] Error 1
make[2]: Leaving directory `/var/tmp/portage/mail-client/evolution-2.10.3/work/evolution-2.10.3/help'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/mail-client/evolution-2.10.3/work/evolution-2.10.3'
make: *** [all] Error 2
 * 
 * ERROR: mail-client/evolution-2.10.3 failed.
 * Call stack:
 *   ebuild.sh, line 1654:   Called dyn_compile
 *   ebuild.sh, line 990:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   evolution-2.10.3.ebuild, line 198:   Called gnome2_src_compile
 *   gnome2.eclass, line 71:   Called die
 * 
 * compile failure
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/mail-client/evolution-2.10.3/temp/build.log'.
 *