gnu: Add texlive-fontname.

* gnu/packages/tex.scm (texlive-fontname): New variable.

gnu: python-ipython: Use texlive-union.

* gnu/packages/python.scm (python-ipython)[native-inputs]: Replace "texlive"
with a texlive-union.

gnu: Add texlive-latex-pstool.

* gnu/packages/tex.scm (texlive-latex-pstool): New variable.

gnu: Add texlive-latex-trimspaces.

* gnu/packages/tex.scm (texlive-latex-trimspaces): New variable.

gnu: Add texlive-latex-psfrag.

* gnu/packages/tex.scm (texlive-latex-psfrag): New variable.

gnu: Add texlive-latex-ifplatform.

* gnu/packages/tex.scm (texlive-latex-ifplatform): New variable.

gnu: Add texlive-latex-filemod.

* gnu/packages/tex.scm (texlive-latex-filemod): New variable.

gnu: Add texlive-latex-environ.

* gnu/packages/tex.scm (texlive-latex-environ): New variable.

gnu: Add texlive-latex-bigfoot.

* gnu/packages/tex.scm (texlive-latex-bigfoot): New variable.

gnu: Add texlive-generic-pdftex.

* gnu/packages/tex.scm (texlive-generic-pdftex): New variable.

gnu: Add texlive-latex-wrapfig.

* gnu/packages/tex.scm (texlive-latex-wrapfig): New variable.

gnu: Add texlive-latex-varwidth.

* gnu/packages/tex.scm (texlive-latex-varwidth): New variable.

gnu: Add texlive-latex-threeparttable.

* gnu/packages/tex.scm (texlive-latex-threeparttable): New variable.

gnu: Add texlive-latex-tabulary.

* gnu/packages/tex.scm (texlive-latex-tabulary): New variable.

gnu: Add texlive-latex-parskip.

* gnu/packages/tex.scm (texlive-latex-parskip): New variable.

gnu: Add texlive-latex-upquote.

* gnu/packages/tex.scm (texlive-latex-upquote): New variable.

gnu: Add texlive-latex-mdwtools.

* gnu/packages/tex.scm (texlive-latex-mdwtools): New variable.

gnu: Add texlive-latex-framed.

* gnu/packages/tex.scm (texlive-latex-framed): New variable.

gnu: Add texlive-latex-etoolbox.

* gnu/packages/tex.scm (texlive-latex-etoolbox): New variable.

gnu: Add texlive-latex-capt-of.

* gnu/packages/tex.scm (texlive-latex-capt-of): New variable.