Re: Git on QNX

[Tarmigan <tarmigan+git@gmail.com>]

On Tue, Dec 15, 2009 at 1:42 PM, Junio C Hamano <gitster@pobox.com> wrote:
> Tarmigan <tarmigan+git@gmail.com> writes:
>
>> diff --git a/builtin-fetch-pack.c b/builtin-fetch-pack.c
>> index 8ed4a6f..5cbc16c 100644
>> --- a/builtin-fetch-pack.c
>> +++ b/builtin-fetch-pack.c
>> @@ -778,7 +778,7 @@ static int fetch_pack_config(const char *var,
>> const char *value, void *cb)
>>       return git_default_config(var, value, cb);
>>  }
>>
>> -static struct lock_file lock;
>> +static struct lock_file lockfile;
>>
>>  static void fetch_pack_setup(void)
>>  {
>> @@ -958,14 +958,14 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args,
>>                         )
>>                       die("shallow file was changed during fetch");
>>
>> -             fd = hold_lock_file_for_update(&lock, shallow,
>> +             fd = hold_lock_file_for_update(&lockfile, shallow,
>>                                              LOCK_DIE_ON_ERROR);
>>               if (!write_shallow_commits(&sb, 0)
>>                || write_in_full(fd, sb.buf, sb.len) != sb.len) {
>>                       unlink_or_warn(shallow);
>> -                     rollback_lock_file(&lock);
>> +                     rollback_lock_file(&lockfile);
>>               } else {
>> -                     commit_lock_file(&lock);
>> +                     commit_lock_file(&lockfile);
>>               }
>>               strbuf_release(&sb);
>>       }
>
> Is this because QNX uses "lock" as some global identifier for some other
> purpose?  I think moving the file-scope-static definition to the scope
> it is used in without renaming would make a cleaner patch.

Yes, exactly that reason.  I agree the declaration should just move
into fetch_pack() as a static, but I didn't realize that until after I
had renamed all of the uses, and I was lazy as this was not for
submission.

>
>> diff --git a/git-compat-util.h b/git-compat-util.h
>> index 5c59687..857e938 100644
>> --- a/git-compat-util.h
>> +++ b/git-compat-util.h
>> @@ -79,6 +84,7 @@
>>  #include <stdlib.h>
>>  #include <stdarg.h>
>>  #include <string.h>
>> +#include <strings.h>
>>  #include <errno.h>
>>  #include <limits.h>
>>  #include <sys/param.h>
>
> Other hunks are QNX specific enough but this hunk is worrisome; you cannot
> tell how you are hurting other platforms with this change.  Can you tell
> declarations of which functions are missing on QNX without this change?

strcasecmp()
http://www.opengroup.org/onlinepubs/000095399/functions/strcasecmp.html

I agree that this change could affect other platforms and they've
gotten along fine without it so far.  I'm surprised no others have
needed it.  Would it be better wrapped in a #ifdef?

Thanks,
Tarmigan