mpich: phase out :fortran

Formula/mpich.rb

@@ -4,6 +4,7 @@ class Mpich < Formula
   url "https://www.mpich.org/static/downloads/3.2.1/mpich-3.2.1.tar.gz"
   mirror "https://fossies.org/linux/misc/mpich-3.2.1.tar.gz"
   sha256 "5db53bf2edfaa2238eb6a0a5bc3d2c2ccbfbb1badd79b664a1a919d2ce2330f1"
+  revision 1
 
   bottle do
     sha256 "58cead221276267a7a223e9b6f7804f2b0a6870089e6dafe6182df189700dfcb" => :high_sierra
@@ -23,11 +24,10 @@ class Mpich < Formula
     depends_on "automake" => :build
     depends_on "libtool"  => :build
   end
-  deprecated_option "disable-fortran" => "without-fortran"
 
-  depends_on :fortran => :recommended
+  depends_on "gcc" # for gfortran
 
-  conflicts_with "open-mpi", :because => "both install mpi__ compiler wrappers"
+  conflicts_with "open-mpi", :because => "both install MPI compiler wrappers"
 
   def install
     if build.head?
@@ -37,16 +37,11 @@ class Mpich < Formula
       system "./autogen.sh"
     end
 
-    args = [
-      "--disable-dependency-tracking",
+    system "./configure", "--disable-dependency-tracking",
                           "--disable-silent-rules",
                           "--prefix=#{prefix}",
-      "--mandir=#{man}",
-    ]
+                          "--mandir=#{man}"
 
-    args << "--disable-fortran" if build.without? "fortran"
-
-    system "./configure", *args
     system "make"
     system "make", "check"
     system "make", "install"
@@ -73,7 +68,7 @@ class Mpich < Formula
     system "#{bin}/mpicc", "hello.c", "-o", "hello"
     system "./hello"
     system "#{bin}/mpirun", "-np", "4", "./hello"
-    if build.with? "fortran"
+
     (testpath/"hellof.f90").write <<~EOS
       program hello
       include 'mpif.h'
@@ -89,5 +84,4 @@ class Mpich < Formula
     system "./hellof"
     system "#{bin}/mpirun", "-np", "4", "./hellof"
   end
-  end
 end