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This is only tested on Linux. With some trouble, it might work on Windows as well. The build process uses scons, a build tool written in python. You'll need to have python installed, but scons installation is optional: a runtime copy of scons (called scons-local) is included with zxing. To use the included copy of scons-local, where the instructons says enter "scons", enter "python scons/scons.py" instead. For example, to build the library only, you'd use "python scons/scons.py lib" instead of "scons lib". To build the library only: - Run "scons lib" in this folder (cpp) To build the unit tests: - Install cppunit (libcppunit-dev on Ubuntu) - Run "scons tests" - Run "testrunner" in the build folder To build the test utility: - Install Magick++ (libmagick++-dev on Ubuntu) - Run "scons zxing" An simple example application is now also included, but no compilation instructions yet. To clean: - Run "scons -c all" To use the test utility: - Basic usage: - "mkdir testout" - "zxing testout *.jpg > report.html" - With the zxing test data, from the cpp folder: - "mkdir testout" - "build/zxing testout ../core/test/data/blackbox/qrcode-*/* > report.html" To format the code: - Install astyle - Run ./format To profile the code (very useful to optimize the code): - Install valgrind - "valgrind --tool=callgrind build/zxing - path/to/test/data/*.jpg > report.html" - kcachegrind is a very nice tool to analize the output