Go patch committed: Don't let middle-end clear flag_errno_math

[Ian Lance Taylor]

This patch to the Go frontend takes advantage of the options handling
patch I just committed to not let the middle-end clear flag_errno_math.
While looking at this code I noticed that we should not be clearing
flag_trapping_math; we do normally want floating point operations to
trap in Go.  Bootstrapped and ran Go testsuite on
x86_64-unknown-linux-gnu.  Committed to mainline.

Ian


2011-02-08  Ian Lance Taylor  <iant@google.com>

	* go-lang.c (go_langhook_init_options_struct): Set
	frontend_set_flag_errno_math.  Don't set x_flag_trapping_math.


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