Re: [hurd,commited] hurd: do not check Mach and Hurd headers

[Joseph Myers <joseph at codesourcery dot com>]

On Sat, 3 Mar 2018, Samuel Thibault wrote:

> as they are not standard.

That's not a sufficient reason for this change.  What this script is 
checking is nothing to do with whether the headers are standard; it's that 
each header can be included in isolation with any supported feature test 
macro defined (actually, just a few macros are tested) and in any C/C++ 
standards mode.

That property should apply to Hurd-specific headers installed by glibc 
just as it applies to non-Hurd-specific headers (this script doesn't test 
headers not installed by glibc).  That is, any case of such a header 
failing this test is presumptively a bug that should be fixed.  (If a 
header is in fact purely internal, not for direct use by users or by other 
installed headers, stopping it being installed is the correct fix - this 
test is specifically for installed headers.  If a header is installed only 
for use by other installed headers and is not meant to be included 
directly by user programs, it should move into bits/; bits/ headers are 
already excluded from this test.)

-- 
Joseph S. Myers
joseph@codesourcery.com