bug#19428: 25.0.50; Frame is wider (in chars) than normal non-deterministically

[Michael Welsh Duggan <mwd@md5i.com>]

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I was able to bisect this problem to commit
3477e27021dbe9366c3c1aaba80feb72f1138b29

"Complete pixelwise frame/window resizing, add horizontal scrollbar
support."

I am testing for the bad behavior using the following script:


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#!/bin/bash

EMACS=/home/md5i/src/emacs/build/src/emacs
BUGTEST=/tmp/bug.el

for run in {1..50}
do
    ${EMACS} -Q -l ${BUGTEST}
    cols=$?
    if [ $cols -ne 80 ]; 
    then
        echo "Width == $cols"
        exit 1
    fi
done
exit 0

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The following is the elisp file referenced in the script:


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Finally, here is example output from a few runs:

md5i@maru2:~/src/emacs/build$ /tmp/test.sh 
Warning: Cannot convert string "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" to type FontStruct
Warning: Cannot convert string "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" to type FontStruct
Width == 84
md5i@maru2:~/src/emacs/build$ /tmp/test.sh 
Warning: Cannot convert string "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" to type FontStruct
Width == 84
md5i@maru2:~/src/emacs/build$ /tmp/test.sh 
Warning: Cannot convert string "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" to type FontStruct
Warning: Cannot convert string "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" to type FontStruct
Width == 84

-- 
Michael Welsh Duggan
(md5i@md5i.com)