Currently if USE_CCACHE=1 is set to one than the Zephyr build system
will include ccache in the CC variable. ccache cannot be passed to
cmake using EXTERNAL_CMAKE_C_COMPILER (even if we fix the quoting)
because it fails a PATH reachability test within cmake. For that
reasons we solve the build failure simply by removing ccahce from CC
before we pass it into cmake.
The problem described about is a regression due to commit ac1bf19c90
("build: Adopt outputexports") and the fix contained in this patch
restores the original behaviour (zephyr exploits ccache, jerryscript
library build does not).
JerryScript-DCO-1.0-Signed-off-by: Daniel Thompson [email protected]
This patch simplifies the integration with the zephyr build system
whilst at the same time enriching the set of build targets to allow
zephyr to be configured using its kbuild features.
It works by exploiting "make outputexports", a feature of the zephyr
build system that makes the zephyr compiler configuration available to
other build systems in an easily accessible manner.
Whilst looking at the build we also correct the implementation of clean
so that it no longer destroys any custom zephyr configuration. Like any
other zephyr application one must use "make pristine" to remove the
config too.
JerryScript-DCO-1.0-Signed-off-by: Daniel Thompson [email protected]
Daniel Thompson