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Script to install libpng-apng on Mac OS X
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| #!/bin/bash | |
| # CEmu libpng-apng Build Script | |
| # | |
| # Prerequisites: | |
| # - BASH to run this script. (If you can run it, chances are that | |
| # you have it!) | |
| # - curl to download packages. | |
| # - Basic UNIX utilities - sed, grep, sort, tar, rm | |
| # - Clang/GCC + Make installed. For Mac OS X, you may get this | |
| # installed via Xcode - see here: | |
| # https://stackoverflow.com/a/9353468/1094484 | |
| # - Possibly root access via sudo. For Mac OS X, see here for more | |
| # details: https://support.apple.com/en-us/HT204012 | |
| # | |
| # ** Note that you may be able to just point the compiler to the | |
| # libpng-apng folder to compile with, hence not requiring any | |
| # root access to install anything at all. If this is the case, | |
| # simply press CTRL-C when prompted for a password and you're | |
| # good to go. | |
| # | |
| # How to run: | |
| # 1. Download the raw version of this script and save it to | |
| # somewhere you know. | |
| # 2. Open Terminal, and then cd to your folder. | |
| # 3. chmod +x ./get_libpng-apng.sh | |
| # 4. ./get_libpng-apng.sh | |
| # | |
| becho() { echo -e "\033[1m$@\033[0m"; } | |
| cerr() { becho "An error occurred. Please see output above for details." && exit 1; } | |
| LIBPNG_VERSION_CONSTANT="1.6.34" | |
| becho " ** Detecting latest version of libpng..." | |
| LIBPNG_VERSION=$(curl -L -s 'https://sourceforge.net/p/libpng/code/ref/master/tags/' | | |
| sed -n 's,.*<a[^>]*>v\([0-9][^<]*\)<.*,\1,p' | | |
| grep -v alpha | grep -v beta | grep -v rc | | |
| sort -t. -s -k 1,1nr -k 2,2nr -k 3,3nr -k 4,4nr | head -n1 | tail -1) | |
| ([ ! "$?" = "0" ] || [ -z "$LIBPNG_VERSION" ]) && becho "Couldn't autodetect latest libpng, using v$LIBPNG_VERSION_CONSTANT." && LIBPNG_VERSION="$LIBPNG_VERSION_CONSTANT" | |
| becho "Will install: libpng-apng v${LIBPNG_VERSION}" | |
| becho "Press ENTER to start." | |
| read | |
| # Download libpng | |
| becho " ** Downloading libpng..." | |
| curl -s -L -O "https://downloads.sourceforge.net/sourceforge/libpng/libpng-${LIBPNG_VERSION}.tar.xz" || cerr | |
| becho " ** Extracting libpng..." | |
| tar -xJf libpng-${LIBPNG_VERSION}.tar.xz || cerr | |
| becho " ** Cleaning up libpng archive..." | |
| rm -f libpng-${LIBPNG_VERSION}.tar.xz || cerr | |
| # Download apng patch | |
| becho " ** Downloading libpng-apng patch..." | |
| curl -s -L -O "https://downloads.sourceforge.net/sourceforge/libpng-apng/libpng-${LIBPNG_VERSION}-apng.patch.gz" || cerr | |
| becho " ** Decompressing libpng-apng patch..." | |
| gzip -d libpng-${LIBPNG_VERSION}-apng.patch.gz || cerr | |
| # Apply apng patch | |
| becho " ** Applying libpng-apng patch..." | |
| cd libpng-${LIBPNG_VERSION} || cerr | |
| patch -Np1 -i ../libpng-${LIBPNG_VERSION}-apng.patch || cerr | |
| becho " ** Cleaning up libpng-apng patch..." | |
| rm -f ../libpng-${LIBPNG_VERSION}-apng.patch || cerr | |
| # Build libpng-apng | |
| becho " ** Configuring libpng-apng..." | |
| CFLAGS="-O2 -fPIC" ./configure --enable-static --enable-shared || cerr | |
| becho " ** Building libpng-apng..." | |
| make -j2 || cerr | |
| becho " ** Installing libpng-apng..." | |
| sudo make install || cerr | |
| becho " ** All done." | |
| cd .. |
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