[Buildroot] This linker was not configured to use sysroots

[Buildroot] This linker was not configured to use sysroots

[Nuno da Costa Ferro]

Hello,

I'm getting this error while compiling 'fontconfig':
make[4]: Entering directory 
`/build/firmware/buildroot/build_arm/fontconfig-2.4.2/fc-case'
/usr/bin/gcc  -Os -pipe  -I/build/firmware/buildroot/build_arm/staging_dir/usr/include 
 --sysroot=/build/firmware/buildroot/build_arm/staging_dir/ -isysroot 
/build/firmware/buildroot/build_arm/staging_dir   -L/build/firmware/buildroot/build_arm/staging_dir/lib 
 -L/build/firmware/buildroot/build_arm/staging_dir/usr/lib -o fc-case 
fc-case.o

/usr/bin/ld: this linker was not configured to use sysroots


What do I need to do in order to fix this?


Thanks.


Kind regards,

Nuno da Costa Ferro
---------------------------
Number Five Software, S.A.
Development & IT Management
Email: nferro at nfive.com
DDI: +351 261 860 472 

[Buildroot] This linker was not configured to use sysroots

[Bernhard Fischer]

On Fri, Jun 22, 2007 at 11:45:34AM +0100, Nuno da Costa Ferro wrote:
>Hello,
>
>I'm getting this error while compiling 'fontconfig':
>make[4]: Entering directory 
>`/build/firmware/buildroot/build_arm/fontconfig-2.4.2/fc-case'
>/usr/bin/gcc  -Os -pipe  -I/build/firmware/buildroot/build_arm/staging_dir/usr/include 
> --sysroot=/build/firmware/buildroot/build_arm/staging_dir/ -isysroot 
>/build/firmware/buildroot/build_arm/staging_dir   -L/build/firmware/buildroot/build_arm/staging_dir/lib 
> -L/build/firmware/buildroot/build_arm/staging_dir/usr/lib -o fc-case 
>fc-case.o
>
>/usr/bin/ld: this linker was not configured to use sysroots

IIRC this fc-case is ment to be run on the host (to create some stuff).
Last time i looked, fontconfig was utterly broken for cross-compiling.

I suggests you add -march=armv5 (or any arm* that matches your target)
to your BR2_TARGET_OPTIMIZATION, this will make it very, very clear
which packages are broken (are and also were even before the sysroot
support).
>
>What do I need to do in order to fix this?

fix fontconfig upstream so it can properly be cross-compiled, i.e. so
that it uses CC_FOR_BUILD CFLAGS_FOR_BUILD when creating binaries ment
to be run on the host, and CC/CFLAGS for stuff that is cross-compiled.