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Re: [Qemu-devel] [PATCH v2 40/47] trace: switch target/s390x/ directory

From: Lluís Vilanova
Subject: Re: [Qemu-devel] [PATCH v2 40/47] trace: switch target/s390x/ directory to modular trace.h file
Date: Fri, 06 Jan 2017 18:09:16 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

Daniel P Berrange writes:

> Switch files in the target/s390x/ directory to include the
> target/s390x/trace.h file instead of the global trace.h
> file.

> The make rules for gen-features.{h,c} need to be moved
> out into the top level Makefile.objs, otherwise make
> complains about the rules being defined multiple times
> due to target/s390x/Makefile.objs being included
> multiple times when expanding different subdir object
> lists.

If the problem is re-definition, you can instead add a guard around the rules in
target/s390x/Makefile.objs. This avoids defining the rules multiple times but
still keeps the target-specific rules in the target-specific makefile.


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