[Bug target/45258] linkage on -ldl, -lm and -lpthread should be purged from darwin build

[howarth at nitro dot med dot uc dot edu]

------- Comment #9 from howarth at nitro dot med dot uc dot edu  2010-08-12 
05:52 -------
The remove_outfile.diff patch has the additional advantage of also eliminating
the gcc.dg/torture/builtin-math-7.c failures.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45258