* In the MacPorts environment, Ruby 2.7 is used.
* Updated the build tools for Mac supporting Qt-5.15.2 from MacPorts.
* Updated the Ruby environment for BigSur and Catalina.
* To update the Mac DMG maker to support Big Sur.
* Updated the resource files for Mac DMGs.
* * Updated the build system for Mac
* Catalina env. uses Python 3.8 in MacPorts, Homebrew, and Anaconda3.
* Use Ruby 2.7 in MacPorts.
* Test build for macOS "Big Sur" (11.0) on Intel Mac "Catalina" (10.15.7).
* Updated the build system for macOS, including the future support for Big Sur (11.0)
* Changing indentation to 4 spaces
* squash
* removing more global variables (squash)
* | tee always exits with 0
* parameter is a dictionary now
* Changing default Makefile to HB38 and adding -rbinc2 option for Catalina
* Catalina building...
* macQAT fixed
* run_build_command depends on parameteres dict alone
* Adding options to macbuild/makeDMG4mac.py
In particular, we can now specify a -u (unsafe) option, and
specify the target dmg file with -t target.dmg