Re: [screen-devel] Screen 4.6.2: ./configure fails Cross-Compiling to ARM (Xilinx Zynq)

[Ben Kamen]

On 02/08/2018 03:48 AM, Alex Naumov wrote:
> Please provide more info how do you trying to compile it.
> Did you try to compile something else in your CC environment?
> Let us know how to reproduce it exactly like you doing it.
>
>

Xilinx has their own rollup of an arm cross compiler they call PetaLinux. (IIRC 
it's an older variant of Yocto/OpenEmbedded).

So that whole mess I have installed in 
/opt/Xilinx/Petalinux/<someversion>/complete-toolchaindirectory.

Xilinx wants you to set an ENV var to point to that directory above so all it's 
canned scripts like "petalinux-build" work.

With other programs like openntp and htop, I've made a semi-custom script that 
sets up stuff I need and looks like this:

> #!/bin/sh
> #
> #  This file helps set up just about any external project to use the 
> Zynq/Petalinux install/build tree.
> #  It really needs to be set to a current zynq build directory... (see below)
>
> # Sets the PREFIX for installing stuff into some known place that's NOT your 
> computer's System Directories.
> MYDIR=~/workspace-xilinx/SPEC-uZed-uCPI_FCDP/uZed-BSP/components/apps/screen/build/
>
> # This points to a current working Zynq build directory
> ZYNQDIR=~/workspace-xilinx/SPEC-uZed-uCPI_FCDP/uZed-BSP/build/linux/rootfs/stage
>
>
> ./configure    \
>             --prefix=$MYDIR \
>             --host=arm-xilinx-linux-gnueabi \
>             --target=arm-xilinx-linux-gnueabi \
>             --enable-colors256 \
>             CFLAGS="-I$ZYNQDIR/usr/include" \
>             LDFLAGS="-L$ZYNQDIR/usr/lib -L$ZYNQDIR/lib" \
>             CPPFLAGS="-I$ZYNQDIR/usr/include" \
>             $1
>

This particular one is what I'm using for screen --- obviously I have to edit 
it for each thing I want to build (htop, openntp, and so on..)

That's how configure for screen gets run.

The logfile I sent you is what I get with the default 'configure' that's 
included in  screen-4.6.2.tar.gz

It looks like the configure script has been set to bail on cross compiling in 
general.

And not being an autoconf person, that's where I'm stuck.

 -Ben


p.s. The target is a Xilinx Zynq SoC with a dual-core ARM-A9 CPU running (uname 
-a):

Linux uZed 4.0.0-xilinx #8 SMP PREEMPT Wed Feb 7 21:08:10 CST 2018 armv7l 
GNU/Linux