* Prevent MKL-DNN from compiling code with -march=native (pull #618)

mkl-dnn/cppbuild.sh

@@ -27,7 +27,7 @@ case $PLATFORM in
         mkdir -p external
         tar --totals -xf mklml_lnx_$MKLML_VERSION.tgz -C external
         # libmklml_intel.so does not have a SONAME, so libmkldnn.so.0 needs an RPATH to be able to load
-        "$CMAKE" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DCMAKE_CXX_FLAGS='-Wl,-rpath,$ORIGIN/' -Wno-error=unused-result
+        "$CMAKE" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DCMAKE_CXX_FLAGS='-Wl,-rpath,$ORIGIN/' -DARCH_OPT_FLAGS='' -Wno-error=unused-result
         make -j $MAKEJ
         make install/strip
         cp external/mklml_lnx_$MKLML_VERSION/include/* ../include/
@@ -39,7 +39,7 @@ case $PLATFORM in
         export CC="$(ls -1 /usr/local/bin/gcc-? | head -n 1)"
         export CXX="$(ls -1 /usr/local/bin/g++-? | head -n 1)"
         sedinplace 's/__thread/thread_local/g' src/common/utils.hpp
-        "$CMAKE" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH
+        "$CMAKE" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DARCH_OPT_FLAGS=''
         make -j $MAKEJ
         make install/strip
         cp external/mklml_mac_$MKLML_VERSION/include/* ../include/
@@ -50,7 +50,7 @@ case $PLATFORM in
         download https://github.com/intel/mkl-dnn/releases/download/v$MKLDNN_VERSION/mklml_win_$MKLML_VERSION.zip mklml_win_$MKLML_VERSION.zip
         mkdir -p external
         unzip -o mklml_win_$MKLML_VERSION.zip -d external
-        "$CMAKE" -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH
+        "$CMAKE" -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH -DARCH_OPT_FLAGS=''
         make -j $MAKEJ
         make install/strip
         cp external/mklml_win_$MKLML_VERSION/include/* ../include/