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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"backport to 2.x fixes for sphinx 1.8?","articleBody":"Hello,\r\nin Debian we just got this bug report, http://bugs.debian.org/918896:\r\n\r\n```\r\nmatplotlib2 fails to build with Sphinx 1.8, currently available in\r\nexperimental:\r\n\r\n  # build the doc\r\n  [...] /usr/bin/make -C doc html\r\n  make[1]: Entering directory '/\u003c\u003cPKGBUILDDIR\u003e\u003e/doc'\r\n  Running Sphinx v1.8.3\r\n\r\n  Warning, treated as error:\r\n  while setting up extension matplotlib.sphinxext.mathmpl: directive u'math' is already registered, it will be overridden\r\n  make[1]: *** [Makefile:20: html] Error 2\r\n\r\nThis was fixed in matplotlib 3.x in this commit, please backport it:\r\n\r\nhttps://github.com/matplotlib/matplotlib/commit/f87e9f46daf42ad7\r\n\r\nThat commit switches from generating PNG images for math formulas to MathJax\r\nlibrary, which renders the math formulas on client side. To package it for\r\nDebian, please add this line to conf.py:\r\n\r\n  mathjax_path = 'file:///usr/share/javascript/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML'\r\n\r\nand make your documentation package depend on libjs-mathjax.\r\n\r\nAlso upstream has noticed that some math renders incorrectly with MathJax,\r\nthere is a follow-up commit which fixes it:\r\n\r\nhttps://github.com/matplotlib/matplotlib/commit/a101de79650e077a\r\n```\r\n\r\ni see an issue was already reported and fixed at https://github.com/matplotlib/matplotlib/issues/12108 but it looks like the fixes where never backported to 2.x - would it be possible to do that?\r\n\r\nthanks!","author":{"url":"https://github.com/sandrotosi","@type":"Person","name":"sandrotosi"},"datePublished":"2019-01-22T00:45:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/13258/matplotlib/issues/13258"}