Make install fails for mail/thunderbird

[Chris]

Hello,

I'm seeing this when doing a "make install" on mail/thunderbird (version
24):

resource://gre/modules/devtools/Console.jsm
resource://gre/modules/devtools/WebConsoleClient.jsm
resource://gre/modules/devtools/dbg-server.jsm
Traceback (most recent call last):
  File
"/usr/ports/mail/thunderbird/work/comm-esr24/mozilla/toolkit/mozapps/installer/packager.py",
line 375, in <module>
    main()
  File
"/usr/ports/mail/thunderbird/work/comm-esr24/mozilla/toolkit/mozapps/installer/packager.py",
line 367, in main
    args.source, gre_path, base)
  File
"/usr/ports/mail/thunderbird/work/comm-esr24/mozilla/toolkit/mozapps/installer/packager.py",
line 148, in precompile_cache
    errors.fatal('Error while running startup cache precompilation')
  File
"/usr/ports/mail/thunderbird/work/comm-esr24/mozilla/python/mozbuild/mozpack/errors.py",
line 101, in fatal
    self._handle(self.FATAL, msg)
  File
"/usr/ports/mail/thunderbird/work/comm-esr24/mozilla/python/mozbuild/mozpack/errors.py",
line 96, in _handle
    raise ErrorMessage(msg)
mozpack.errors.ErrorMessage: Error: Error while running startup cache
precompilation
gmake[2]: *** [stage-package] Error 1
gmake[2]: Leaving directory
`/usr/ports/mail/thunderbird/work/comm-esr24/obj-x86_64-unknown-freebsd8.4/mail/installer'
gmake[1]: *** [install] Error 2
gmake[1]: Leaving directory
`/usr/ports/mail/thunderbird/work/comm-esr24/obj-x86_64-unknown-freebsd8.4'
gmake: *** [install] Error 2
*** Error code 2

Stop in /usr/ports/mail/thunderbird.
*** Error code 1

Any help would greatly be appreciated.