... on top of homebrew, which provides gfortran 11 and many usable packages.

Tickets:

• Upgrade cmake to 3.19.3 #31258 Upgrade cmake to 3.19.3
• gfortran: Accept system gfortran 11 #31838 gfortran: Accept system gfortran 11
• Fix suitesparse / cvxopt path configuration for Apple Silicon, Alpine Linux #31905 cvxopt: Correct link directory
• update GMP to version 6.2.1 #32796 gmp: update to 6.2.1
• Update numpy to 1.21.4, networkx to 2.6.3 #32815 Update numpy to 1.21.3, networkx to 2.6.3
• tachyon, primecountpy, libhomfly, m4ri: Fix build errors on Apple Silicon with homebrew #33191 Fix build errors on Apple Silicon with homebrew
• iml: Refresh build scripts with current autotools #33195 iml: Refresh build scripts with current autotools
• openblas: Update to 0.3.20 #33194 openblas: Update to 0.3.19
• Update gcc/gfortran to 12.x + Apple Silicon support, update openblas to 0.3.21, gsl to 2.7.1 #33816 Update gcc/gfortran to 12.x + Apple Silicon support, update openblas to 0.3.21, gsl to 2.7.1

Discussions:

• https://groups.google.com/g/sage-devel/c/P-RGHeng5m8/m/vChq3b9yBwAJ
• https://groups.google.com/g/sage-devel/c/_vYkTlLRWWY
• https://groups.google.com/g/sage-devel/c/6LldEeJu3ZA

See also:

• Meta-ticket: Support Xcode 12 #30494: Meta-ticket: Support Xcode 12
• Meta-ticket: support macOS 11 Big Sur #30651: Meta-ticket: support macOS 11 Big Sur

CC: @dimpase @isuruf @kcrisman @kiwifb @williamstein

Component: porting

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/30592