build-system: Add 'texlive-build-system'.

* guix/build-system/texlive.scm: New file.
* guix/build/texlive-build-system.scm: New file.
* Makefile.am (MODULES): Add them.
* doc/guix.texi (Build Systems): Document it.
* gnu/packages/tex.scm (%texlive-tag, %texlive-revision): Remove variables.
(texlife-ref): Remove procedure.

1 files changed, 19 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index b5538e0195..056059d04b 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3580,6 +3580,25 @@ are run after installation using the R function
 @code{tools::testInstalledPackage}.
 @end defvr
 
+@defvr {Scheme Variable} texlive-build-system
+This variable is exported by @code{(guix build-system texlive)}.  It is
+used to build TeX packages in batch mode with a specified engine.  The
+build system sets the @code{TEXINPUTS} variable to find all TeX source
+files in the inputs.
+
+By default it runs @code{luatex} on all files ending on @code{ins}.  A
+different engine and format can be specified with the
+@code{#:tex-format} argument.  Different build targets can be specified
+with the @code{#:build-targets} argument, which expects a list of file
+names.  The build system adds only @code{texlive-bin} and
+@code{texlive-latex-base} (both from @code{(gnu packages tex}) to the
+inputs.  Both can be overridden with the arguments @code{#:texlive-bin}
+and @code{#:texlive-latex-base}, respectively.
+
+The @code{#:tex-directory} parameter tells the build system where to
+install the built files under the texmf tree.
+@end defvr
+
 @defvr {Scheme Variable} ruby-build-system
 This variable is exported by @code{(guix build-system ruby)}.  It
 implements the RubyGems build procedure used by Ruby packages, which