1#!/usr/bin/env bash 2 3# Licensed to the Apache Software Foundation (ASF) under one 4# or more contributor license agreements. See the NOTICE file 5# distributed with this work for additional information 6# regarding copyright ownership. The ASF licenses this file 7# to you under the Apache License, Version 2.0 (the 8# "License"); you may not use this file except in compliance 9# with the License. You may obtain a copy of the License at 10# 11# http://www.apache.org/licenses/LICENSE-2.0 12# 13# Unless required by applicable law or agreed to in writing, 14# software distributed under the License is distributed on an 15# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16# KIND, either express or implied. See the License for the 17# specific language governing permissions and limitations 18# under the License. 19 20# This script builds the static library of libpng that can be used as dependency of mxnet/opencv. 21set -ex 22PNG_VERSION=1.6.35 23if [[ ! -f $DEPS_PATH/lib/libpng.a ]]; then 24 # download and build libpng 25 >&2 echo "Building libpng..." 26 download \ 27 https://github.com/glennrp/libpng/archive/v${PNG_VERSION}.zip \ 28 ${DEPS_PATH}/libpng.zip 29 unzip -q $DEPS_PATH/libpng.zip -d $DEPS_PATH 30 mkdir -p $DEPS_PATH/libpng-$PNG_VERSION/build 31 pushd . 32 cd $DEPS_PATH/libpng-$PNG_VERSION/build 33 cmake \ 34 -D PNG_SHARED=OFF \ 35 -D PNG_STATIC=ON \ 36 -D CMAKE_BUILD_TYPE=RELEASE \ 37 -D CMAKE_INSTALL_PREFIX=$DEPS_PATH \ 38 -D CMAKE_C_FLAGS=-fPIC .. 39 $MAKE 40 $MAKE install 41 mkdir -p $DEPS_PATH/include/libpng 42 ln -s $DEPS_PATH/include/png.h $DEPS_PATH/include/libpng/png.h 43 popd 44fi 45