bug#22787: [PATCH] Allocate glyph matrices for the initial frame

[Chris Feng <chris.w.feng@gmail.com>]

>> After bd4de70f the initial frame is created without the glyph matrices
>> allocated.  As a result Emacs in batch/daemon mode would crash when evaluating
>> certain functions (e.g. line-pixel-height, window-text-pixel-size).
>
> Thanks, but can you explain this part:
>
>>  clear_glyph_matrix_rows (struct glyph_matrix *matrix, int start, int end)
>>  {
>>    eassert (start <= end);
>> -  eassert (start >= 0 && start < matrix->nrows);
>> +  eassert (start >= 0 && start <= matrix->nrows);
>
> If this is for the case that both start and matrix->nrows are zero,
> please test that case separately.

Thanks.  I've just pushed a commit to fix this.