Re: [PATCH v4 1/4] Refactor skipping DOS drive prefixes

[Johannes Sixt <j6t@kdbg.org>]

Am 23.01.2016 um 09:25 schrieb Johannes Schindelin:
> Hi Junio,
>
> On Fri, 22 Jan 2016, Junio C Hamano wrote:
>
>> Johannes Sixt <j6t@kdbg.org> writes:
>>
>>> I suggest to move the function definition out of line:
>>>
>>> diff --git a/compat/mingw.c b/compat/mingw.c
>>> index 10a51c0..0cebb61 100644
>>> --- a/compat/mingw.c
>>> +++ b/compat/mingw.c
>>> @@ -1915,6 +1915,13 @@ pid_t waitpid(pid_t pid, int *status, int options)
>>>   	return -1;
>>>   }
>>>
>>> +int mingw_skip_dos_drive_prefix(char **path)
>>> +{
>>> +	int ret = has_dos_drive_prefix(*path);
>>> +	*path += ret;
>>> +	return ret;
>>> +}
>>> +
>>>   int mingw_offset_1st_component(const char *path)
>>>   {
>>>   	char *pos = (char *)path;
>>> diff --git a/compat/mingw.h b/compat/mingw.h
>>> index 9b5db4e..2099b79 100644
>>> --- a/compat/mingw.h
>>> +++ b/compat/mingw.h
>>> @@ -360,12 +360,7 @@ HANDLE winansi_get_osfhandle(int fd);
>>>
>>>   #define has_dos_drive_prefix(path) \
>>>   	(isalpha(*(path)) && (path)[1] == ':' ? 2 : 0)
>>> -static inline int mingw_skip_dos_drive_prefix(char **path)
>>> -{
>>> -	int ret = has_dos_drive_prefix(*path);
>>> -	*path += ret;
>>> -	return ret;
>>> -}
>>> +int mingw_skip_dos_drive_prefix(char **path);
>>>   #define skip_dos_drive_prefix mingw_skip_dos_drive_prefix
>>>   #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
>>>   static inline char *mingw_find_last_dir_sep(const char *path)
>>
>> This sounds good to me.  Dscho?
>
> Yep, sounds good to me, too.
>
> Personally, I have no inclination to add compatibility with the
> now-safely-obsolete MSys to my responsibilities, but if Hannes wants to do
> it, who am I to stand in his way? Especially when the fix is as trivial as
> here.

This is not a matter of compatibility. I am VERY curious why you do not 
see an error (or warning) without my proposed fixup. As I mentioned, 
isalpha() is defined much later than the definition of 
mingw_skip_dos_drive_prefix(). Where does your build get a declaration 
of isalpha() from?

-- Hannes