LaTeX: avoid "Overfull \hbox" reports when solved by verbatimforcewraps

Fix sphinx-doc#12722
jfbu · Aug 5, 2024 · d53262a · d53262a
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diff --git a/CHANGES.rst b/CHANGES.rst
@@ -19,6 +19,10 @@ Bugs fixed
 * #12514: intersphinx: fix the meaning of a negative value for
   :confval:`intersphinx_cache_limit`.
   Patch by Shengyu Zhang.
+* #12722: LaTeX: avoid TeX reporting ``Overfull \hbox`` from too long
+  strings in a codeline when the problem has actually been solved thanks
+  to :ref:`latexsphinxsetupforcewraps`.
+  Patch by Jean-François B.
 
 Testing
 -------
diff --git a/sphinx/texinputs/sphinxlatexliterals.sty b/sphinx/texinputs/sphinxlatexliterals.sty
@@ -512,6 +512,9 @@
     \setbox\spx@tempboxa
     \vtop{\raggedright\hyphenpenalty\z@\exhyphenpenalty\z@
           \doublehyphendemerits\z@\finalhyphendemerits\z@
+% Avoid TeX reporting Overfull \hbox'es during this measuring phase. Setting
+% \hbadness to \@M to avoid Underfull reports is unneeded due to \raggedright.
+          \hfuzz\maxdimen
           \spx@everypar{}\noindent\strut\FV@Line\strut\spx@par
           \spx@verb@getwidths}%
     \ifdim\spx@verb@maxwidth>