[PATCH 8/9] posix: Use enum for __glob_pattern_type result

[Adhemerval Zanella]

On 06/09/2017 01:18, Paul Eggert wrote:
> Adhemerval Zanella wrote:
>> +enum glob_pattern_type_t
>> +{
>> +  __GLOB_NONE      = 0x0,
>> +  __GLOB_SPECIAL   = 0x1,
>> +  __GLOB_BACKSLASH = 0x2,
>> +  __GLOB_BRACKET   = 0x4
>> +};
> 
> The identifier glob_pattern_type_t is not used elsewhere, so let's omit it. This makes it clearer that we're merely defining handy names for int constants, as opposed to defining a new type.

Ack.

> 
> Also, names like __GLOB_NONE could cause problems when Gnulib is used on non-GNU platforms, which might use those names for other purposes. As glob_internal.h is not user-visible, let's use ordinary names. I suggest GLOBPAT_NONE, GLOBPAT_SPECIAL, etc., as done in the attached patch, which I installed into Gnulib.

My understanding was double underscore identifiers are reserved for implementation
(C99 7.1.3 Reserved identifiers).  But I do not have a strong opinion here, I am 
ok with your approach.