[Bug target/67710] FAIL: gcc.dg/darwin-*version-*.c (test for excess errors) with Xcode 7

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67710

--- Comment #3 from Iain Sandoe <iains at gcc dot gnu.org> ---
The patch LGTM,

tools (ar, nm etc, as well as the assembler) <= xcode 3.2.6 [darwin10] do not
support the LC_VERSION_MIN_MACOSX load command, so we can't just set it as
default.

I'll give it a spin on darwin9 or 10 over the w/e where the tools have the
earlier version.

(and also with my back-ported cctools/ld64)