David Jensen wrote:
A bit more poking around shows, for both seamonkey and firefox:
ac_add_options --enable-pango does not really enable Thai, that needs
an additional option.
Could you please point me to the source that led you definitely to this
conclusion? There are sources that say the contrary:
http://permalink.gmane.org/gmane.comp.mozilla.internationalization/861
http://developer.mozilla.org/en/docs/index.php?title=User:Biesi/Configure_options&printable=yes
(note the "Probably pointless when pango is enabled?")
and the fact that --enable-ctl brings an internal stripped-down copy of
Pango into the browser (see directory names in the source).
This is how Debian builds Firefox (from about:buildconfig):
--host=i486-linux-gnu --build=i486-linux-gnu --prefix=/usr
'--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info'
--enable-default-toolkit=gtk2
--with-default-mozilla-five-home=/usr/lib/firefox --enable-pango
--with-user-appdir=.mozilla --with-system-png=/usr
--with-system-jpeg=/usr --disable-mailnews --disable-composer
--disable-ldap --enable-postscript --disable-installer --enable-xprint
--enable-crypto --disable-strip --disable-strip-libs --enable-canvas
--enable-svg --enable-svg-renderer=cairo --enable-system-cairo
--enable-mathml --disable-tests --disable-gtktest --disable-debug
--enable-xft '--enable-optimize=-pipe\ -w\ -O2\ -g'
--with-system-zlib=/usr --without-system-nspr --enable-xinerama
--enable-extensions=default --disable-pedantic
--disable-long-long-warning --enable-single-profile
--disable-profilesharing --enable-gnomevfs --enable-application=browser
--disable-installer --disable-updater --enable-chrome-format=flat
--disable-elf-dynstr-gc --enable-static --disable-shared
The notes in the .mozconfig misled (at least) me. Should we add to
the .mozconfigs after enable-pango:
# For Thai Complex Script support.
#ac_add_options --enable-ctl
It is added on many Thai sites together with Pango, but, given the
above, I am not sure if this is really needed. My understanding is that
--enable-ctl is for Firefox 1.0.x, and --enable-pango is for 1.5.x.
Anyway, adding --enable-pango results in some regressions even on
English text (e.g., miscalculation of the width of any text containing
the "fi" or "ff" substring if the font has such ligatures - select it in
order to see the effect). See also
http://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=firefox;dist=unstable;include=fix-disable-pango
So, distros usually build their Firefox with --enable-pango, but disable
it by default at runtime with MOZ_DISABLE_PANGO=1 in the environment.
--
Alexander E. Patrakov
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