Without defining HOSTCC Makefile.host was defaulting to the operating
system cc. In the minimal docker image (focal) - cc is not available.
BUILD u-boot (target)
TOOLCHAIN make (auto-detect)
make[1]: Entering directory
HOSTCC scripts/basic/fixdep
/bin/sh: 1: cc: not found
make[2]: *** [scripts/Makefile.host:95: scripts/basic/fixdep] Error 127
make[1]: *** [Makefile:488: scripts_basic] Error 2
make[1]: Leaving directory
FAILURE: scripts/build u-boot:target during make_target (package.mk)
*********** FAILED COMMAND ***********
DEBUG=${PKG_DEBUG} CROSS_COMPILE="${TARGET_KERNEL_PREFIX}" LDFLAGS="" ARCH=arm make $(${ROOT}/${SCRIPTS}/uboot_helper ${PROJECT} ${DEVICE} ${UBOOT_SYSTEM} config)
*********** FAILED COMMAND ***********
u-boot requires openssl includes and libs on host, add the missing
dependencies and set HOSTCFLAGS so the build can pick up openssl from
the LE toolchain.
Also fix HOSTLDFLAGS to use HOST_LDFLAGS which adds an rpath to
toolchain/lib so the dynamic linker uses our openssl libs, not those
from the host.
Signed-off-by: Matthias Reichl <hias@horus.com>
Issue was that pkg-config picks wrong include folders. That is because
in u-boot case, pkg-config is configured to pick up target (ARM)
includes and libraries, because it's called from make_target(). Simple
solution to avoid patching sources and adding CONFIG_TOOLS_LIBCRYPTO
line to each and every config file is to add setup_pkg_config_host at
the beginning of make_target(). Include the dependency to
openssl:host.
