[SYCL] Remove duplicate cflags for libdevice build #20233
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Signed-off-by: jinge90 <[email protected]>
againull
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Sep 29, 2025
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A bunch of warnings are reported when building sycl libdevice:
clang-22: warning: offloading target 'spir64_x86_64-unknown-unknown' is similar to target 'spir64_x86_64-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spir64_gen-unknown-unknown' is similar to target 'spir64_gen-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spir64-unknown-unknown' is similar to target 'spir64-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spirv64-unknown-unknown' is similar to target 'spirv64-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spir64_x86_64-unknown-unknown' is similar to target 'spir64_x86_64-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spir64_gen-unknown-unknown' is similar to target 'spir64_gen-unknown-unknown' already specified; will be ignored [-Woffload-target]
clang-22: warning: offloading target 'spir64-unknown-unknown' is similar to target 'spir64-unknown-unknown' already specified; will be ignored [-Woffload-target]
The reason is "-fsycl -c -fsycl-targets=" flags are added twice in cmake file.