[Qemu-devel] Re: [PATCH] Fix build for mingw32 on windows ($@ in macro)

[malc]

On Thu, 19 Nov 2009, Stefan Weil wrote:

> Make using mingw32 on windows does not preserve $@ in macros
> when they are modified using this pattern:
> target: macro += something
> 
> This behaviour results in an error when QEMU_CFLAGS containing
> "-MMD -MP -MT $@" is modified for compilation of source files
> which use SDL: $@ will expand to nothing, -MT no longer has
> the correct argument (it will take the next one from the command
> line) and the build will fail or run with a wrong command line.
> 
> The problem is fixed by using a new macro QEMU_DGFLAGS
> which is not modified by a target rule.

Why not just stuff `-MMD -MP -MT $@' into the rules?

[..snip..]

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