On 2014-10-16 Thu 14:17, Titus von der Malsburg wrote:
> On 2014-10-16 Thu 08:34, Eli Zaretskii wrote:
>> Both bzr and git have a bisect command that will converge on the
>> offending revision logarithmically.  Since there were about 1000
>> commits since the beginning of the summer, you will need about 10
>> different builds.
>
> Ok, I used git bisect as described here:
>
>   http://git-scm.com/docs/git-bisect
>
> In every iteration I did the following:
>
>   make distclean && make clean && ./autogen.sh && ./configure && make && src/emacs -Q
>
> According to this procedure, the following commit introduced the problem:
>
>   6fcdb247c460ae52018a970c189969620c959465

For those who are not using git, it was this commit:

https://lists.gnu.org/archive/html/emacs-diffs/2014-09/msg00085.html