Re: How to ensure methods are set in my GNUstep build

[Fred Kiefer]

HI Gustavo,

that method on NSDateComponents is something that I just did add to the GNUstep 
base source last week. If you really need that code you would have to switch to 
use GNUstep directly from the up to date git repository. Basically you would 
need to update base and start the recompilation from there. Maybe it is easier 
to just start over from scratch again?

Hope this helps,
Fred

PS: As that code is pretty new, expect some glitches in the beginning.


> Am 30.04.2020 um 00:49 schrieb Gustavo Tavares <mucholove@fastmail.com>:
> 
>> 
>> I've installed GNUstep using this script from Plaurent: 
>> https://github.com/plaurent/gnustep-build/blob/master/ubuntu-19.10-clang-9.0-runtime-2.0/GNUstep-buildon-ubuntu1910.sh
>> and have been successfully building some projects with it.
>> 
>> For my current project, I'm encountering a build error. I was thinking it 
>> was a config on the GNU install—and later I thought it was something I could 
>> define in a Makefile—but I can't seem to work out how to solve it.
>> 
>> The error is this:
>> 
>> MyFile.m:130:50: error: no visible @interface for 'NSDateComponents' 
>> declares the selector 'valueForComponent:'
>> 
>> I can see that the MAC_OS_VERSION and GS_API_VERSION are somehow determined 
>> in GSVersionMacros.h and that this determines whether to inlcude this 
>> NSDateComponents functionality—but I also don't know where the headers are 
>> in my system. Looking in /usr/GNUstep/System/ and ~/GNUstep/Library/Headers 
>> and I can't echo it out either.
>> 
>> https://github.com/gnustep/libs-base/blob/fc0c0da188eb4ee2800ab9643394aa16660ef6bd/Headers/GNUstepBase/GSVersionMacros.h
>> 
>> Would really appreciate it if someone could help me get this built :) What 
>> do I need to do / invoke?
>> 
>> Thank you!
>> 
>> Gustavo