1.80 fails to build on Sonoma: `error: incompatible function pointer types assigning to 'void (*)(const char *)' from 'void (char *)' [-Wincompatible-function-pointer-types]`

[barracuda156]

R-app 1.80 fails to build on macOS Sonoma with clang:

  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:110:23: error: incompatible function pointer types assigning to 'void (*)(const char *)' from 'void (char *)' [-Wincompatible-function-pointer-types]
      ptr_R_ShowMessage = Re_ShowMessage;
                        ^ ~~~~~~~~~~~~~~
  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:111:23: error: incompatible function pointer types assigning to 'int (*)(const char *, unsigned char *, int, int)' from 'int (char *, unsigned char *, int, int)' [-Wincompatible-function-pointer-types]
      ptr_R_ReadConsole =  Re_ReadConsole;
                        ^  ~~~~~~~~~~~~~~
  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:113:26: error: incompatible function pointer types assigning to 'void (*)(const char *, int, int)' from 'void (char *, int, int)' [-Wincompatible-function-pointer-types]
      ptr_R_WriteConsoleEx = Re_WriteConsoleEx;
                           ^ ~~~~~~~~~~~~~~~~~
  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:124:20: error: incompatible function pointer types assigning to 'int (*)(const char *)' from 'int (char *)' [-Wincompatible-function-pointer-types]
      ptr_R_EditFile = Re_Edit;
                     ^ ~~~~~~~
  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:126:21: error: incompatible function pointer types assigning to 'int (*)(int, const char **, const char **, const char *, Rboolean, const char *)' from 'int (int, char **, char **, char *, Rboolean, char *)' [-Wincompatible-function-pointer-types]
      ptr_R_ShowFiles = Re_ShowFiles;
                      ^ ~~~~~~~~~~~~
  /opt/local/var/macports/build/_Users_runner_work_macports-ports_macports-ports_ports_math_R-app/R-app/work/Mac-GUI-1.80/REngine/Rinit.m:127:21: error: incompatible function pointer types assigning to 'int (*)(int, const char **, const char **, const char *)' from 'int (int, char **, char **, char *)' [-Wincompatible-function-pointer-types]
      ptr_R_EditFiles = Re_EditFiles;
                      ^ ~~~~~~~~~~~~
  6 errors generated.