1 files changed, 13 insertions, 0 deletions
diff --git a/Library/Homebrew/compat/requirements/fortran_requirement.rb b/Library/Homebrew/compat/requirements/fortran_requirement.rb
new file mode 100644
index 000000000..ba3fead6f
--- /dev/null
+++ b/Library/Homebrew/compat/requirements/fortran_requirement.rb
@@ -0,0 +1,13 @@
+require "requirement"
+
+class FortranRequirement < Requirement
+  fatal true
+
+  default_formula "gcc"
+
+  env { ENV.fortran }
+
+  satisfy build_env: false do
+    which(ENV["FC"] || "gfortran")
+  end
+end