Current code tests treats "" (quotes included) as an empty value for that
varible (as coming from Kconfig). However, that file also used to
integrate with build systems for 3rd-party components, e.g. as examplified
by samples/static_lib, and in that case it will be just an empty string.
So, first strip surrounding quotes, then test for empty string.
samples/static_lib: Update for recent Makefile.toolchain.zephyr changes.
Makefile.toolchain.zephyr is 2-pass now, so needs to be included twice.
ARCH needs to be defined *before* including it. Otherwise, just used
CROSS_COMPILE and TOOLCHAIN_CFLAGS set by it.
Change-Id: I56e963d0d107c77390395682d60400cf6ca62337
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
38e3e0b812