fix lz4 output to file

Author: pmp-p

python-wasm-sdk.sh

@@ -46,10 +46,11 @@ then
                 ${SDKDIR}/emsdk \
                 ${SDKDIR}/devices/* \
                 ${SDKDIR}/prebuilt/* \
-                > /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar
-                lz4 /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar
+                 > /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar
+                lz4 -c --favor-decSpeed --best /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar \
+                 > /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.lz4
                 # bzip2 will remove original
-                bzip2 /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar
+                bzip2 -9 /tmp/sdk/python-wasm-sdk-${CIVER:-ubuntu-latest}.tar
         else
             echo " cpython-build-emsdk-deps failed"
             exit 2