[U-Boot] [PATCH] Coldire: mcf52x2: Improve gcc version detection

[Wolfgang Denk]

Dear Richard Retanubun,

In message <49C399AA.2030107 at RuggedCom.com> you wrote:
> 
> > 	echo __GNUC__ __GNUC_MINOR__ | $(CC) -E -xc - \
> > 	| tail -n 1 | sed -e 's/ /0/'
> > 
> > would be any better than parsing the output of "$(CC) --version"? 
> > 
> > The fact that it takes 4 processes instead of one (or say two if we
> > add the filtering) is not a recommendation.
> 
> sorry if I'm (re)stating the obvious, but just to be clear:
> 
> ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
> 
> while simple, will cause gcc-4.0.x or gcc-3.x.x to try to use the -mcpu option
> which is not supported yet until gcc-4.2.+ (if I am not mistaken).

Well, when I say "parsing the output" I had a little more intelligent
testing in ming than a fixed string compare and decision between 4.1
or anything else.

> I am sure there are many better ways of extracting the version string, my attempt is to
> highlight one way that converts the version to a number and use the '-gt' to compare on it.

You get the number for free from "gcc -v".

Best regards,

Wolfgang Denk

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