for installing gfortran10 type: sudo port install gcc10 sudo port select -set gcc mp-gcc10 Uncompressing the tgz package. InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault. Install Apple's Command Line Developer Tools xcode-select -install Install MacPorts Install gfortran, e.g. Otherwise, simply use the explicit command 'gfortran-4.2'. > Configured with: -prefix=/Applications/Xcode.app/Contents/Developer/usr -with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/atform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1Īpple clang version 12.0.0 (clang-1200.0.32.28) sudo ln -s /usr/bin/gfortran-4.2 /usr/bin/gfortran. I have installed gnu gfortran and gcc before updating. I compile with this line: gfortran hw.f90 -> ld: library not found for -lSystem collect2: error: ld returned 1 exit status. An installer with a simpler installing process is given below. I am trying to compile a hello world program in fortran on Mac OS Big Sur. Warranty not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Installing gfortran There are various sites to obtain the gfortran compiler that are built for Mac OS X.

This is free software see the source for copying conditions. > GNU Fortran (Homebrew GCC 10.2.0) 10.2.0Ĭopyright (C) 2020 Free Software Foundation, Inc. Version command output: ~ % gfortran -version Open Terminal, and type the following command 'sudo apt-get install gfortran' Terminal will then ask a password, enter it and allow the program to install on your computer. I have installed gnu gfortran and gcc before updating. So first things first, you need to be connected to the internet. I compile with this line: ~ % gfortran hw.f90Ĭollect2: error: ld returned 1 exit status I am trying to compile a hello world program in fortran on Mac OS Big Sur.

Install gfortran mac from terminal