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xt-clang: Do not use -std=gnu99 for C++ 

Option -std=gnu99 applied to C++ files trigerrs warning for xcc
compiler however throws error for xt-clang.
This patch limits usage of this flag to C, ASM code only.

Signed-off-by: Jaroslaw Stelter <Jaroslaw.Stelter@intel.com>
This commit is contained in:
Jaroslaw Stelter 2022-11-22 10:14:12 +01:00 committed by Liam Girdwood
parent a036799103
commit e430629a1e
1 changed files with 2 additions and 1 deletions
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3
zephyr/CMakeLists.txt
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@ -895,7 +895,8 @@ find_package(Python3 COMPONENTS Interpreter)
set(PYTHON3 "${Python3_EXECUTABLE}")
# SOF uses GNU C99 extensions. TODO other flags required ?
target_compile_options(SOF INTERFACE -std=gnu99 -fno-inline-functions)
target_compile_options(SOF INTERFACE -fno-inline-functions)
target_compile_options(SOF INTERFACE $<$<COMPILE_LANGUAGE:C,ASM>: -std=gnu99>)
# Toolchain info
add_definitions(-DXCC_TOOLS_VERSION="${ZEPHYR_TOOLCHAIN_VARIANT}" -DCC_OPTIMIZE_FLAGS="${OPTIMIZATION_FLAG}")