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Enable VLA Cxx extension in clang build

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The clang build fails with

    /oai-ran/openair1/PHY/MODULATION/gen_75KHz.cpp:16:23: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
       16 |     complex<double> t[len];
          |                       ^~~
    /oai-ran/openair1/PHY/MODULATION/gen_75KHz.cpp:16:23: note: function parameter 'len' with unknown value cannot be used in a constant expression

So ignore this warning (and make the build pass), since OAI uses VLAs in
various places.
This commit is contained in:
Robert Schmidt
2024-11-12 17:15:22 +01:00
parent 3991f15c89
commit cd25064fb1
1 changed files with 1 additions and 1 deletions
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docker/Dockerfile.clang.rhel9
+1 -1
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@@ -40,4 +40,4 @@ RUN /bin/sh oaienv && \
mkdir -p log && \
export CC=/usr/bin/clang && \
export CXX=/usr/bin/clang++ && \
./build_oai --phy_simulators --gNB --eNB --nrUE --UE --ninja --noavx512 --disable-T-Tracer -c --cmake-opt -DCMAKE_C_FLAGS=-Werror --cmake-opt -DCMAKE_CXX_FLAGS=-Werror
CFLAGS="-Werror" CXXFLAGS="-Werror -Wno-vla-cxx-extension" ./build_oai --phy_simulators --gNB --eNB --nrUE --UE --ninja --noavx512 --disable-T-Tracer -c