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Re: Static linking impossible on the host system

Christian, All,

On Saturday 15 September 2012 12:46:40 Christian Kujau wrote:
> On Sat, 15 Sep 2012 at 12:22, Yann E. MORIN wrote:
> > config/cc/gcc.in.2:
> >   43  config CC_STATIC_LIBSTDCXX
> >   44      bool
> >   45      prompt "Link libstdc++ statically into the gcc binary"
> >   46      default y
> >   47      depends on CC_GCC_4_4_or_later
> >   48      select WANTS_STATIC_LINK
> 
> Isn't CC_STATIC_LIBSTDCXX a blind option as well?

No, it has a prompt.

> Two lines above it reads:
> 40 config STATIC_TOOLCHAIN
> 41   select CC_STATIC_LIBSTDCXX if CC_GCC_4_4_or_later

Yes, because if you want a static toolchain, then you need to statically
link libstdc++.

> And since I'm using GCC 4.6.2, CC_STATIC_LIBSTDCXX will be selected

The defaults are:
  - STATIC_TOOLCHAIN=n (and hidden behind EXPERIMENTAL)
  - CC_STATIC_LIBSTDCXX=y

Thus WANTS_STATIC_LINK=y because it is selected by CC_STATIC_LIBSTDCXX, not
by STATIC_TOOLCHAIN.

Using your provided .config, if you go into the menuconfig:
  C compiler  --->
    [*] Link libstdc++ statically into the gcc binary

It can be disabled. And if I do it here, WANTS_STATIC_LINK is not set.

> What is the advantage in having a static toolchain?

It's more portable, so you can move it around machines without bothering
about the host distro.

If that's not your case, then de-select CC_STATIC_LIBSTDCXX.

Regards,
Yann E. MORIN.

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