cc.tcl assumes gnu gcc, breaks OpenOCD's submodule jimtcl configure for Darwin

[jhgorse]

This -gstabs flag is GNU gcc specific and does not apply to llvm's 'gcc' or clang.

        switch -glob -- [get-define host] {
                *-*-darwin* {
                        # Don't generate .dSYM directories
-->                       lappend cmdline -gstabs
                }
        }
        lappend cmdline $src -o $tmp {*}$opts(-libs)

Cross-referencing to the issue comment I left in the related OpenOCD issues:
esden/summon-arm-toolchain#54

[msteveb]

Really? Both clang and llvm-gcc support -gstabs for me:

$ clang --version
Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn)
Target: x86_64-apple-darwin11.4.2
Thread model: posix
$ llvm-gcc --version
i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

I've added a comment to the referenced ticket. There may be another cause.

[msteveb]

I have committed a fix. Let me know if it doesn't work.

[jhgorse]

Yep, it's good here. Thanks!