From 5082f98a415a7c0ca9d50d90da7dc24d6da40ebd Mon Sep 17 00:00:00 2001
From: Martin Kühl
Date: Fri, 16 Jul 2010 22:27:12 +0200
Subject: Make `gfortran` only report errors on install.

As is, the gfortran formula reports an Error when no compatible Xcode
version is available, but does so even in cases when it is neither
installed nor in the process of being installed. For example, `brew
outdated` reports the error, just because it needs to load the formula
to check its version.

This changeset delays the error message until someone tries to install
the formula. The version and URL are determined solely by checking the
OSX version.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
---
 Library/Formula/gfortran.rb | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

(limited to 'Library')

diff --git a/Library/Formula/gfortran.rb b/Library/Formula/gfortran.rb
index 609f34b4d..f81e3d718 100644
--- a/Library/Formula/gfortran.rb
+++ b/Library/Formula/gfortran.rb
@@ -16,24 +16,14 @@ class GfortranPkgDownloadStrategy <CurlDownloadStrategy
 end
 
 class Gfortran <Formula
-
-  case gcc_42_build
-  when 5577
-    url 'http://r.research.att.com/gfortran-42-5577.pkg'
-    md5 '30fb495c93cf514003cdfcb7846dc701'
-    version "4.2.4-5577"
-
-  when 5659
+  if MACOS_VERSION >= 10.6
     url 'http://r.research.att.com/gfortran-42-5659.pkg'
     md5 '71bd546baa45c9c0fb4943cdd72ee274'
     version "4.2.4-5659"
-
   else
-    onoe <<-EOS.undent
-      Currently the gfortran compiler provided by this brew is only supported
-      for XCode 3.1.4 on OS X 10.5.x and XCode 3.2.2 on OS X 10.6.x
-    EOS
-    # exit
+    url 'http://r.research.att.com/gfortran-42-5577.pkg'
+    md5 '30fb495c93cf514003cdfcb7846dc701'
+    version "4.2.4-5577"
   end
 
   homepage 'http://r.research.att.com/tools/'
@@ -61,6 +51,11 @@ class Gfortran <Formula
       ohai "Installing gfortran 4.2.4 for XCode 3.2.2 (build 5659)"
       safe_system "pax --insecure -rz -f Payload.gz -s ',./usr,#{prefix},'"
       safe_system "ln -sf #{man1}/gfortran-4.2.1 #{man1}/gfortran.1"
+    else
+      onoe <<-EOS.undent
+        Currently the gfortran compiler provided by this brew is only supported
+        for XCode 3.1.4 on OS X 10.5.x and XCode 3.2.2 on OS X 10.6.x
+      EOS
     end
   end
 
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