Update some build.sh shell script for create install path

guowenxue

2020-08-21 2a299a628e3a0828838189324b46320443d31026

 3rdparty/imageMagick/build.sh

@@ -89,6 +89,11 @@
    cd -
}

if [ ! -f ${PREFIX_PATH}/lib/libz.so ] ; then
    cd ../zlib
    ./build.sh
    cd -
fi

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