Re: Cross-compiling with third party libraries

[Brendan Simon <Brendan@BrendanSimon.com>]

One option may be to specify -nostdlib to GCC and/or GLD.
You may have to add extra search paths and/or explicitly specify 
particular libraries on the GCC/GLD command line.


Martin Morissette wrote:
> Happy New Year to all!
>
> I am currently trying to cross-compile a version of OpenJDK/IcedTea 
> for ARM and I am running into a few issues. Since there is no easy way 
> of managing third party libraries for cross-compilation under debian 
> (i.e. installing libjpeg for arm on a x86 host) I am compiling and 
> linking against lib and headers that I export from a native arm debian 
> machine. For that, I specify which LDFLAGS and CPPFLAGS to use while 
> compiling as follows:
>
> /LD_LIBRARY_PATH="/usr/arm-linux-gnueabi/lib/" ; 
> LDFLAGS="-L/usr/local/dev/dev-headers-armel/usr/lib" ; 
> CPPFLAGS="-I/usr/local/dev/dev-headers-armel/usr/include" ; 
> ./configure --build=x86 --host=arm-linux-gnueabi [...]/
>
> Unfortunately, this fails to compile even the simplest c file. The 
> config.log gives me the following error:
> /    configure:3066: checking for C compiler default output file name
>     configure:3093: arm-linux-gnueabi-gcc  
> -I/usr/local/dev/dev-headers-armel/usr/include 
> -L/usr/local/dev/dev-headers-armel/usr/lib conftest.c  >&5
>     
> /usr/lib/gcc/arm-linux-gnueabi/4.3.2/../../../../arm-linux-gnueabi/bin/ld: 
> skipping incompatible /lib/libc.so.6 when searching for /lib/libc.so.6
>     
> /usr/lib/gcc/arm-linux-gnueabi/4.3.2/../../../../arm-linux-gnueabi/bin/ld: 
> cannot find /lib/libc.so.6
>     collect2: ld returned 1 exit status
>     [...]
>     configure:3141: error: C compiler cannot create executables/
>
>
> Does anyone have an idea of what the issue might be? Is there a 
> better, more common way of managing third party libs for 
> cross-compilation?
>
> Thanks,
> Martin