gcc49 build on osx fix linker assertion

[gartung]

When building with gcc49 on osx a linker assertion happens when linking interpreter module. Trial and error reveal that setting -O0 removes the linker assertion. Dan Riley found that adding the flag -fno-omit-frame-pointer also removed the linker assertion without removing other optimizations.

[Axel-Naumann]

Thanks! Given that this is specifically macosx64 with GCC - could you select on that, and not penalize the main MacOS X compiler?

[gartung]

Any clues on what variable to use.

On 06/08/2015 12:54 PM, karies wrote:

Thanks! Given that this is specifically macosx64 /with GCC/ - could
you select on that, and not penalize the main MacOS X compiler?

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#64 (comment).

[Axel-Naumann]

You could check for GCC_MAJOR which is not set for clang (where CLANG_MAJOR is set instead).

[gartung]

Is that set as an environment variable? Would this work

     if [ $(ARCH) = "macosx64" && $(GCC_MAJOR) ]; then \
         LLVM_CFLAGS="-m64 -fno-omit-frame-pointer"; \
     fi; \

On 06/08/2015 12:59 PM, karies wrote:

You could check for |GCC_MAJOR| which is not set for clang (where
|CLANG_MAJOR| is set instead).

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#64 (comment).

[Axel-Naumann]

Thanks, merged into master! Where else do you need it?

[gartung]

v6-02-00-patches and v6-04-00-patches

[gartung]

But it doesn't set the flag.

[gartung]

Please merge latest. I think it fixes.

[gartung]

@karies it is still not setting the flag. I will resubmit when it does.