Re: [ptxdist] Build U-Boot against host-openssl fails

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Mon, Jul 25, 2022 at 04:41:45PM +0200, Alexander Dahl wrote:
> Hei hei,
> 
> although claiming it's optional latest U-Boot versions require OpenSSL on the 
> host.¹  I added an option to build host-openssl with commit 
> 0c779a60e50c40d522b1e9c20b5c75b2e57fde5a ("u-boot: Add option to depend on 
> host-openssl") but ptxdist u-boot package still fails to link to host openssl 
> package, message is always missing some openssl symbols.
> 
> I tried the same thing as barebox now in rules/u-boot.make like this:
> 
> +# use host pkg-config for host tools
> +U_BOOT_PATH        := PATH=$(HOST_PATH)
> 
> This does not help. 
> 
> I'm somehow suspecting the wrong pkg-config is called.  Affected is not the 
> target image, but the host tools (like mkimage) built alongside with the 
> target stuff (which you 1) can not disable to build and 2) need for certain 
> parts of the ptxdist package anyways, so not building those is no option).
> 
> I tried each combination of PTXCONF_U_BOOT_NEEDS_HOST_OPENSSL and 
> CONFIG_TOOLS_LIBCRYPTO in U-Boot kconfig, all fail.
> 
> buildroot has a fix for building against host-openssl, but I don't understand 
> it, and I'm not sure if the same approach would work in ptxdist.
> 
> Any ideas?
> 
> (Disclaimer: this only happens on a quite recent U-Boot, e.g. from 2022.)
> (More disclaimer: it does not happen if libssl-dev is installed on the build 
> host.)

This sounds like u-boot is calling /usr/bin/pkg-config instead of
.../sysroot-host/bin/pkg-config (and not the cross pkg-config either).

Maybe /usr/bin/pkg-config is called explicitly with the whole path
somewhere? That could be a "feature" to avoid the cross pkg-config when
cross-compiling.

Michael

> ¹ I consider this a bug, and I'm not the only one, but several attempts to fix 
> this in upstream U-Boot did not lead to merge any fix.
> 
> 
> 
> 
> 

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