Update build.sh

Author: Kelvinrr

recipe/build.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 mkdir build && cd build
+export CXXFLAGS="$CXXFLAGS -D_LIBCPP_DISABLE_AVAILABILITY"
+
 cmake -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$PREFIX -DSPICEQL_BUILD_DOCS=OFF -DSPICEQL_BUILD_TESTS=OFF  -DPython3_EXECUTABLE=$PYTHON ..
 cmake --build . --config RELEASE
 cmake --install . --config RELEASE