# Variable Reference

## Generating Header Files

`DOC_H_FILE`

- The name of the header file to generate

`DOC_H_DOCS`

- The input DocBook files for generating the header file

## Generating Documentation Files

`DOC_MODULE`

- The name of the document being built

`DOC_ID`

- The unique identifier for a Mallard document

`DOC_PAGES`

- Page files in a Mallard document

`DOC_ENTITIES`

- Files included with a SYSTEM entity

`DOC_INCLUDES`

- Files included with XInclude

`DOC_FIGURES`

- Figures and other external data

`DOC_FORMATS`

- The default formats to be built and installed

`DOC_LINGUAS`

- The languages this document is translated into

## Rules for OMF Files

`_DOC_OMF_IN`

- The OMF input file

`_DOC_OMF_DB`

- The OMF files for DocBook output

`_DOC_OMF_HTML`

- The OMF files for HTML output

`_DOC_OMF_ALL`

- All OMF output files to be built

## C Locale Documents

`_DOC_C_MODULE`

- The top-level documentation file in the C locale

`_DOC_C_PAGES`

- Page files in a Mallard document in the C locale

`_DOC_C_ENTITIES`

- Files included with a SYSTEM entity in the C locale

`_DOC_C_XINCLUDES`

- Files included with XInclude in the C locale

`_DOC_C_DOCS`

- All documentation files in the C locale

`_DOC_C_DOCS_NOENT`

- All documentation files in the C locale, except files included with a SYSTEM entity

`_DOC_C_FIGURES`

- All figures and other external data in the C locale

`_DOC_C_HTML`

- All HTML documentation in the C locale

## Other Locale Documentation

`_DOC_POFILES`

- The .po files used for translating the document

`_DOC_MOFILES`

- The .mo files used for translating the document

`_DOC_LC_MODULES`

- The top-level documentation files in all other locales

`_DOC_LC_PAGES`

- Page files in a Mallard document in all other locales

`_DOC_LC_XINCLUDES`

- Files included with XInclude in all other locales

`_DOC_LC_HTML`

- All HTML documentation in all other locales

`_DOC_LC_DOCS`

- All documentation files in all other locales

`_DOC_LC_FIGURES`

- All figures and other external data in all other locales

`_DOC_POT`

- A pot file

## All Documentation

`_DOC_HTML_ALL`

- All HTML documentation, only if it's built