Pullup ticket #4815 - requested by ryoon
www/firefox: build fix

Revisions pulled up:
- www/firefox/mozilla-common.mk                                1.63

-------------------------------------------------------------------
  Module Name: pkgsrc
  Committed By: ryoon
  Date: Thu Sep 24 22:36:27 UTC 2015

  Modified Files:
  pkgsrc/www/firefox: mozilla-common.mk

  Log Message:
  Fix NetBSD/i386 build.
  flag for c++ compiler is CXXFLAGS.

  To generate a diff of this commit:
  cvs rdiff -u -r1.62 -r1.63 pkgsrc/www/firefox/mozilla-common.mk

(spz)