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authorDavid Kastrup <dak@gnu.org>2016-09-02 23:11:53 +0200
committerDavid Kastrup <dak@gnu.org>2016-09-08 12:28:04 +0200
commit93f3d637efbc038b837cf64fae0872e873e4f039 (patch)
tree6b62967489103b73d6b13c73ee24803eb6262ddb /input
parentc16c8655784da3f7d1d20640ef0208a36bdeeaee (diff)
Issue 4965: Create and use Grob::parent_relative
This function checks for the existence of a Grob parent before calculating a coordinate relative to it. This should hopefully clean up the most relevant problems caused by issue 4814 and the original GCC 6 optimization causing it.
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