Am Donnerstag, 11. Februar 2021, 11:29:33 CET schrieb Rolf Eike Beer:
I'm just guessing, but your build error looks like you are also cross-building the tools, which is wrong. You want them to be host-tools. So don't export PKG_CONFIG_SYSROOT_DIR, it would then try to link target libraries into a host binary.
I have looked again how I do it:
# this is for additional _host_ .pc files export PKG_CONFIG_PATH=${prefix}/lib/pkgconfig
Then have a target-pkg-config, so this code inside several kernel Makefiles will work:
PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
And then export your PKG_CONFIG_SYSROOT_DIR and the like inside that. I bet you have all of this already in place, so just remove the SYSROOT_DIR from your kernel build script and things should work.
Eike