Dear Operator I'm trying to install gfortran and gcc on my mac catalina version 10.15.4. I have already installed xcode and command line tools. I have also installed home brew. When I type "which gcc" and "gcc --version" I get the following answer: [edriss-MacBook-Pro:~] edris% which gcc /usr/bin/gcc [edriss-MacBook-Pro:~] edris% gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1 Apple clang version 11.0.3 (clang-1103.0.32.62) Target: x86_64-apple-darwin19.4.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin I wonder if I have installed it correctly. I found that this is not gcc and it is clang that I have installed. Please guide me . Any way, I need gfortran compiler and when I type "which gfortran" I get the following message. [edriss-MacBook-Pro:~] edris% which gfortran gfortran: Command not found. Let me please know if I have done the installation wrong. If yes, please show me how can I remove the old installation of gcc and install a correct one (including gfortran compiler). I appreciate the time you devote to me kindly All the best, Edris
