new formula: dotwrp

This library resolves an incompatibility between gfortran and
Accelerate.framework by providing gfortran-compatible entry points for a few
BLAS functions that still use the f77 calling conventions. When using this
library, make sure the linker sees it before Accelerate.framework, eg by using
"-ldotwrp -framework Accelerate".

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/dotwrp.rb

@@ -0,0 +1,18 @@
+require 'formula'
+
+class Dotwrp <Formula
+  url 'https://github.com/tenomoto/dotwrp.git', :using => :git
+  homepage 'https://github.com/tenomoto/dotwrp'
+  version '1.0'
+
+  def install
+    ENV.fortran
+
+	  # note: fno-underscoring is vital to override the symbols in Accelerate
+    system "#{ENV["FC"]} #{ENV["FFLAGS"]} -fno-underscoring -c dotwrp.f90"
+    system "/usr/bin/ar -cru libdotwrp.a dotwrp.o"
+    system "/usr/bin/ranlib libdotwrp.a"
+
+    lib.install 'libdotwrp.a'
+  end
+end