[PATCH] fix cc_ge and cc_le

[Cristian Ionescu-Idbohrn]

On Mon, 13 Mar 2006, Rob Landley wrote:

> On Monday 13 March 2006 1:43 am, Denis Vlasenko wrote:
> > Without this fix, make thinks that
> >
> > gcc 3.4.3 <= gcc 4.0.0
>
> Um, gcc 3.4 _is_ less than gcc 4.0, isn't it?
>
> > is not true.
>
> I'm confused.

  # Check if CC version is greater or equal than given MAJOR,MINOR
  define cc_ge
  $(shell [ $(CC_MAJOR) -ge $(1) -a $(CC_MINOR) -ge $(2) ] && echo y)
  endef

The macro wants both CC_MAJOR _and_ CC_MINOR greater-or-equal.

If current gcc is 4.0 and $(call cc_ge,3,4), ...),
[ $(CC_MAJOR) -ge $(1) ] is true, but [ $(CC_MINOR) -ge $(2) ] is false.

Maybe this is better:

define cc_ge
$(shell [ `expr $(CC_MAJOR) \* 100 \+ $(CC_MINOR)` -ge \
	  `expr $(1) \* 100 \+ $(2)` ] && echo y)
endef


Cheers,
Cristian