Ignore requests to use backends that aren't available; fixes #5145
authorIan Lynagh <igloo@earth.li>
Sun, 1 May 2011 15:19:06 +0000 (16:19 +0100)
committerIan Lynagh <igloo@earth.li>
Sun, 1 May 2011 15:19:06 +0000 (16:19 +0100)
commit4915e566cb661aa934e133c7c9b21c0d1964490a
treead22be8c026dc95dccc9d7c294aff26e51116bcc
parent066b369de2c6f7da03c88206288dca29ab061b31
Ignore requests to use backends that aren't available; fixes #5145

Now if you try to use "-fasm" with an unreg compiler, for example,
you just get a warning saying it's being ignored.
compiler/main/CodeOutput.lhs
compiler/main/DynFlags.hs