xcc: do not assume clang by default

Some toolchain variants come with no clang support, so do not assume
clang by default and enable this using the enviornment variable
XCC_USE_CLANG.

export XCC_USE_CLANG=1

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2021-02-18 08:14:59 -08:00
commit 01b1ac8c7e

View file

@ -23,7 +23,7 @@ set(SYSROOT_DIR ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})
# xt-xcc does not support -Og, so make it -O0
set(OPTIMIZE_FOR_DEBUG_FLAG "-O0")
if(EXISTS ${CROSS_COMPILE}clang)
if($ENV{XCC_USE_CLANG})
set(CC clang)
set(C++ clang++)
else()