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External Native Client SDK Packages The libraries directory contains bash scripts and patch files to build common libraries for Native Client. The bash scripts will download, patch build and copy the binary library and developer header files into your Native Client SDK. The scripts require that centain tools are present in the host system. You will need at least these (but probably more): - autoconf, automake - pkg-config - gettext - libglib2.0-dev >= 2.26.0 (if you want to build nacl-glib) Before you can use the Makefile in this directory, you must set the NACL_SDK_ROOT environment variable to top directory of a version of the Native Client SDK (the directory containing toolchain/). This path should be absolute. The Makefile can build all of the libraries. Package dependencies are built into the Makefile. For example, 'make vorbis' will build libvorbis-1.2.3 and libogg-1.1.4. 'make all' will build all of the libraries. Headers and libraries are installed where nacl-gcc and nacl-g++ will be able to automatically find them without having to add extra -I or -L options. (Currently, these scripts will generate a gcc "specs" file to add the required extra paths.) The source code and build output for each package is placed in: naclports/src/out/repository for 32-bit builds naclports/src/out/repository64 for 64-bit builds NOTE: These external libraries each have their own licenses for use. Please read and understand these licenses before using these packages in your projects. NOTE to Windows users: These scripts are written in bash and must be launched from a Cygwin shell. To add a package: 1. Make sure you have a writable version of the repository gclient config https://naclports.googlecode.com/svn/trunk/src 2. Add a directory to the libraries directory using the name and version of your new package. For example, nacl-esidl-0.1.5 3. Add the build script to that directory. 4. Optionally build a tarball. If you choose to do this, you will need to create a checksum for it using naclports/src/build_tools/sha1sum.py. Redirect the script output to a .sha1 file so that the common.sh script can pick it up. E.g.: python scripts/sha1sum.py mytarball.zip > scripts/nacl-esidl-0.1.5/nacl-esidl-0.1.5.sha1 5. Add the invocation of your script to the Makefile