[Clfs-dev] HELP ME: issue about arm cross toolchain (cannot find gmp.so, mpfr.so...)

[Andrew Bradford]

On Thu, 24 May 2012 07:47:04 -0400
Andrew Bradford <andrew at bradfordembedded.com> wrote:

> On Thu, 24 May 2012 00:49:46 -0500
> DJ Lucas <dj at linuxfromscratch.org> wrote:
> 
> > I suspect you are looking 
> > for LD_LIBRARY_PATH...at least that's what works on native compilers, 
> > though I suspect the same with cross compilers since it runs native, 
> > just the output is for different arch. If my guess is right, you'll want 
> > something like the following in your working environment:
> 
> For example, output from my armel GCC shows where it expects includes
> and libs:
> 
> andrew at bradford:~/calc/linux$ arm-linux-gnueabi-gcc -v
> Target: arm-linux-gnueabi
> Configured with: <snip>
> --libdir=/usr/lib --includedir=/usr/arm-linux-gnueabi/include
> --build=x86_64-linux-gnu --host=x86_64-linux-gnu
> --target=arm-linux-gnueabi --with-headers=/usr/arm-linux-gnueabi/include
> --with-libs=/usr/arm-linux-gnueabi/lib

OK, so that output isn't where gcc searches for things.  It's just the
info provided when gcc was configured and built.  The actual search
path can be different.

Better switches to see where gcc looks for things is
'-print-search-dirs' which will show you where gcc will look.

-Andrew