When CROSS_COMPILE contains multiple words, HOST_ARCH is not properly detected and the sandbox build fail. It typically happens when using ccache. For example:
$ make sandbox_defconfig $ make CROSS_COMPILE="ccache x86_64-linux-gnu-" \ CC="ccache x86_64-linux-gnu-gcc" [...] In file included from boot/bootmeth_efi.c:16: include/efi_default_filename.h:33:2: error: #error Unsupported UEFI architecture 33 | #error Unsupported UEFI architecture | ^~~~~
A similar error occurs when the build is done via buildman and ~/.buildman contains:
[toolchain-wrapper] wrapper = ccache
Fix the issue by considering only the last word in $(CROSS_COMPILE).
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile index f90e48f58a5..dc7bdd79420 100644 --- a/Makefile +++ b/Makefile @@ -21,7 +21,7 @@ include include/host_arch.h ifeq ("", "$(CROSS_COMPILE)") MK_ARCH="${shell uname -m}" else - MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^[[:space:]]*([^/]*/)*([^-]*)-[^[:space:]]*/\2/p'}" + MK_ARCH="${shell echo ${lastword $(CROSS_COMPILE)} | sed -n 's/^[[:space:]]*([^/]*/)*([^-]*)-[^[:space:]]*/\2/p'}" endif unexport HOST_ARCH ifeq ("x86_64", $(MK_ARCH))