Here is the error during the install, it looks like pango can not be loaded when debconf-gnome requests it:
Preparing to replace postfix 2.3.3-1 (using .../postfix_2.3.7-1_i386.deb) ...
* Stopping Postfix Mail Transport Agent postfix
* Stopping Postfix Mail Transport Agent postfix
* Stopping Postfix Mail Transport Agent postfix /usr/sbin/postfix: error while loading shared libraries: libsasl2.so.2: cannot open shared object file: No such file or directory [fail]
dpkg: warning - old pre-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
dpkg: ... it looks like that went OK.
Fontconfig warning: no <cachedir> elements found. Check configuration.
Fontconfig warning: adding <cachedir>/var/cache/fontconfig</cachedir>
Fontconfig warning: adding <cachedir>~/.fontconfig</cachedir>
Pango-WARNING **: /usr/lib/pango/1.4.0/modules/pango-basic-fc.so: cannot open shared object file: No such file or directory at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 117, <GEN6> line 3.
Pango-WARNING **: Failed to load Pango module '/usr/lib/pango/1.4.0/modules/pango-basic-fc.so' for id 'BasicScriptEngineFc' at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 117, <GEN6> line 3.
Pango-WARNING **: pango_shape called with bad font, expect ugly output at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 117, <GEN6> line 3.
Pango-WARNING **: pango_font_get_glyph_extents called with null font argument, expect ugly output at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 117, <GEN6> line 3.
Pango-WARNING **: /usr/lib/pango/1.4.0/modules/pango-basic-fc.so: cannot open shared object file: No such file or directory at /usr/share/perl5/Debconf/Element/Gnome.pm line 113, <GEN6> line 3.
xpect ugly output at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 117, <GEN6> line 3.
line 3.
aborting postfix install
/Gnome.pm line 117, <GEN6> line 3.
dpkg: error processing /var/cache/apt/archives/postfix_2.3.7-1_i386.deb (--unpack):
Here is the error during the install, it looks like pango can not be loaded when debconf-gnome requests it:
Preparing to replace postfix 2.3.3-1 (using .../postfix_ 2.3.7-1_ i386.deb) ...
[fail] /var/cache/ fontconfig< /cachedir> ~/.fontconfig< /cachedir> pango/1. 4.0/modules/ pango-basic- fc.so: cannot open shared object file: No such file or directory at /usr/share/ perl5/Debconf/ FrontEnd/ Gnome.pm line 117, <GEN6> line 3. pango/1. 4.0/modules/ pango-basic- fc.so' for id 'BasicScriptEng ineFc' at /usr/share/ perl5/Debconf/ FrontEnd/ Gnome.pm line 117, <GEN6> line 3. perl5/Debconf/ FrontEnd/ Gnome.pm line 117, <GEN6> line 3. get_glyph_ extents called with null font argument, expect ugly output at /usr/share/ perl5/Debconf/ FrontEnd/ Gnome.pm line 117, <GEN6> line 3. pango/1. 4.0/modules/ pango-basic- fc.so: cannot open shared object file: No such file or directory at /usr/share/ perl5/Debconf/ Element/ Gnome.pm line 113, <GEN6> line 3. perl5/Debconf/ FrontEnd/ Gnome.pm line 117, <GEN6> line 3. apt/archives/ postfix_ 2.3.7-1_ i386.deb (--unpack):
* Stopping Postfix Mail Transport Agent postfix
* Stopping Postfix Mail Transport Agent postfix
* Stopping Postfix Mail Transport Agent postfix /usr/sbin/postfix: error while loading shared libraries: libsasl2.so.2: cannot open shared object file: No such file or directory
dpkg: warning - old pre-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
dpkg: ... it looks like that went OK.
Fontconfig warning: no <cachedir> elements found. Check configuration.
Fontconfig warning: adding <cachedir>
Fontconfig warning: adding <cachedir>
Pango-WARNING **: /usr/lib/
Pango-WARNING **: Failed to load Pango module '/usr/lib/
Pango-WARNING **: pango_shape called with bad font, expect ugly output at /usr/share/
Pango-WARNING **: pango_font_
Pango-WARNING **: /usr/lib/
xpect ugly output at /usr/share/
line 3.
aborting postfix install
/Gnome.pm line 117, <GEN6> line 3.
dpkg: error processing /var/cache/