Re: [PATCH v2] tag: support --sort=<spec>

[Junio C Hamano <gitster@pobox.com>]

Jeff King <peff@peff.net> writes:

> On Sat, Feb 22, 2014 at 10:29:22AM +0700, Nguyễn Thái Ngọc Duy wrote:
>
>> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
>> ---
>>  The new prereq GNULINUX is an ugly workaround until people provide
>>  strverscmp compat implementation. I hope that will happen soon as
>>  strverscmp.c does not look very complex.
>
> Should GNULINUX be called HAVE_STRVERSCMP in the Makefile?
>
> Then this:
>
>> --- a/git-compat-util.h
>> +++ b/git-compat-util.h
>> @@ -721,4 +721,11 @@ void warn_on_inaccessible(const char *path);
>>  /* Get the passwd entry for the UID of the current process. */
>>  struct passwd *xgetpwuid_self(void);
>>  
>> +#ifndef __GNU_LIBRARY__
>> +static inline int strverscmp(const char *s1, const char *s2)
>> +{
>> +	die("strverscmp() not supported");
>> +}
>> +#endif
>
> becomes "#ifndef HAVE_STRVERSCMP", and this:
>
>> diff --git a/t/test-lib.sh b/t/test-lib.sh
>> index 1531c24..5e8c39a 100644
>> --- a/t/test-lib.sh
>> +++ b/t/test-lib.sh
>> @@ -771,6 +771,8 @@ case $(uname -s) in
>>  	;;
>>  esac
>>  
>> +[ "$(uname -o)" = "GNU/Linux" ] && test_set_prereq GNULINUX
>> +
>
> can pick up the value from GIT-BUILD-OPTIONS as a prerequisite (see the
> way we handle NO_PERL for an example). Though if we can just grab the
> glibc version as a fallback, we can do away with that completely.

;-)  I like that.