[7u4] Request for approval for CR 7142617 De-optimize fdlibm compilation [macosx]

[Michael McMahon]

This is a request to push the following fix to jdk7u-dev:

CR: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7142617

Webrev: http://cr.openjdk.java.net/~michaelm/7142617/webrev.1/

Reviewed by: darcy, chegar

Thanks,
Michael.