[R-SIG-Mac] GUI does not seem to compile with Xcode 12.x

[Gábor Csárdi]

Somewhat relatedly, the build scripts also need a small update for Xcode 12,
https://svn.r-project.org/R-dev-web/trunk/QA/Simon/R4/src/consh.c and
https://svn.r-project.org/R-dev-web/trunk/QA/Simon/R4/src/fixup.c
need to #include <stdlib.h> for the system() calls.

Gabor

On Thu, Oct 29, 2020 at 11:56 AM Gábor Csárdi <csardi.gabor using gmail.com> wrote:
>
> 2020-10-29T09:00:02.6267350Z
> /Users/runner/work/r-builder/r-builder/_build/R4/Mac-GUI/main.m:74:3:
> error: implicit declaration of function 'R_CleanUp' is invalid in C99
> [-Werror,-Wimplicit-function-declaration]
>
> FYI,
> Gabor