7.2. Supporting packages

Recoll uses external applications to index some file types. You need to install them for the file types that you wish to have indexed (these are run-time optional dependencies. None is needed for building or running Recoll except for indexing their specific file type).

After an indexing pass, the commands that were found missing can be displayed from the recoll File menu. The list is stored in the missing text file inside the configuration directory.

A list of common file types which need external commands follows. Many of the filters need the iconv command, which is not always listed as a dependancy.

As of Recoll release 1.14, a number of XML-based formats that were handled by ad hoc filter code now use xsltproc, which usually comes with libxslt. These are: abiword, fb2 (ebooks), kword, openoffice, svg.

Text, HTML, mail folders, Openoffice and Scribus files are processed internally. Lyx is used to index Lyx files. Many filters need iconv and the standard sed and awk.