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doc: robustify PDF build

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In some environment like the current dpdk.org server,
there can be some errors due to symbols in titles,
as it was the case before this commit in DPDK 18.05:
commit 551d148944dc ("doc: remove flow API migration section")

	! LaTeX Error: Bad math environment delimiter.

It can be avoided thanks to the Latex command \robustify.

Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: John McNamara <john.mcnamara@intel.com>
This commit is contained in:
Thomas Monjalon 2019-05-22 19:55:24 +02:00
parent 6226c09e0c
commit 1f7203d615
1 changed files with 3 additions and 0 deletions
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doc/guides/conf.py
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@ -67,6 +67,9 @@ custom_latex_preamble = r"""
\usepackage{helvet}
\renewcommand{\familydefault}{\sfdefault}
\RecustomVerbatimEnvironment{Verbatim}{Verbatim}{xleftmargin=5mm}
\usepackage{etoolbox}
\robustify\(
\robustify\)
"""
# Configuration for the latex/pdf docs.