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


From: Michael Welsh Duggan
Subject: bug#19428: 25.0.50; Frame is wider (in chars) than normal non-deterministically
Date: Thu, 25 Dec 2014 18:26:24 -0500
User-agent: Gnus/5.130012 (Ma Gnus v0.12) Emacs/25.0.50 (gnu/linux)

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:

#!/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
The following is the elisp file referenced in the script:

Attachment: bug.el
Description: application/emacs-lisp

Finally, here is example output from a few runs:

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

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