1 files changed, 21 insertions, 0 deletions
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index 7beaba8ad..ff58aabfd 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -99,3 +99,24 @@ def exec_editor *args
   # we don't have to escape args, and escaping 100% is tricky
   exec *(editor.split+args)
 end
+
+# provide an absolute path to a command or this function will search the PATH
+def arch_for_command cmd
+    archs = []
+    cmd = `which #{cmd}` if not Pathname.new(cmd).absolute?
+
+    IO.popen("file #{cmd}").readlines.each do |line|
+      case line
+      when /Mach-O executable ppc/
+        archs << :ppc7400
+      when /Mach-O 64-bit executable ppc64/
+        archs << :ppc64
+      when /Mach-O executable i386/
+        archs << :i386
+      when /Mach-O 64-bit executable x86_64/
+        archs << :x86_64
+      end
+    end
+
+    return archs
+end