Re: T040 fails on Fedora 39 rebuild

[David Bremner <david@tethera.net>]

David Bremner <david@tethera.net> writes:

> Michael J Gruber <michaeljgruber+grubix+git@gmail.com> writes:
>
>> At first I thought we (notmuch) might have a flushing problem or such,
>> which we should prevent. But this clearly looks like a glib2
>> regression now which caused others' CI to fail, too. At least you're
>> prepared in case of incoming reports now ;-)
>
> I am seeing related (but less obnoxious) failures with glib 2.77.1 and
> 2.77.2: namely the comment at the beginning of the file is gone and the
> blank lines between groups are gone. Ignoring whitespace variance is
> easy enough, but the missing comment at the beginning indicates either a
> glib regression or notmuch doing it wrong.
>

Seems like a glib regression, unless there is something forbidden about
the following. Sigh, I guess I need to register for an account to report
a glib bug.

#include <glib.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main(int argc, char** argv){
  GKeyFile *file;
  size_t length;
  char *data, *filename;
  GError *error = NULL;
  
  file = g_key_file_new ();
  g_key_file_set_comment (file, NULL, NULL, "top comment", NULL);
  g_key_file_set_value (file, "section", "dummy_key", "dummy_val");
  g_key_file_remove_key (file, "section", "dummy_key", NULL);
  g_key_file_set_comment (file,"section",NULL, "section comment",NULL);

  data = g_key_file_to_data (file, &length, NULL);
  if (data == NULL) {
    fprintf (stderr, "Out of memory.\n");
    return 1;
  }

  puts(data);
  
}