[PATCH 3/5] meson: Drop checks for some functions and header files

[Michal Privoznik]

On 9/2/20 11:56 AM, Ján Tomko wrote:
> On a Tuesday in 2020, Michal Privoznik wrote:
>> In meson.build, we check for presence of unshare() function
>> explicitly (even though there is the function usability check a
>> few hundred lines below), but never have any code depending on
>> HAVE_UNSHARE. The same applies to stdarg.h and sys/sysctl.h
>> header files - either we simply include them or guard their
>> include using different conditionals.
>>
>> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
>> ---
>> meson.build | 3 ---
>> 1 file changed, 3 deletions(-)
>>
>> diff --git a/meson.build b/meson.build
>> index e193166a9b..cdf33436f3 100644
>> --- a/meson.build
>> +++ b/meson.build
>> @@ -672,7 +672,6 @@ functions = [
>>   'stat64',
>>   'symlink',
>>   'sysctlbyname',
>> -  'unshare',
>> ]
>>
>> foreach function : functions
>> @@ -696,11 +695,9 @@ headers = [
>>   'net/if.h',
>>   'pty.h',
>>   'pwd.h',
>> -  'stdarg.h',
> 
> Actually, checking for stdarg.h is necessary on macOS where
> we need to have HAVE_STDARG_H defined for readline to use the
> correct prototype for rl_message.
> 
> See commit 9ea3424a178 for more context.

Facepalm. This is what I was afraid of - that a header file we use will 
depend on autotools HAVE_ prefix. Let me see if I can fix this.

Michal