Fix a long standing bug of lib/charset.alias being overwritten, modified, and
badly tracked by ports.
Make lib/charset.alias a file only provided by converters/libiconv
Create a new USES: charsetfix, that will modify in post patch the Makefile.in to
prevent a port from modifying/overwritting the charset.alias file during make
Prevent devel/gettext from installing that files.
Fix a couple of ports that actually touch charset.alias during the build phase.
Based on a patch by ale
Approved by: kwm (gnome)
Exp-run by: miwi