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This one used to be stored into debug.h but the debug tools got larger and require a lot of other includes, which can't use BUG_ON() anymore because of this. It does not make sense and instead this macro should be placed into the lower includes and given its omnipresence, the best solution is to create a new bug.h with the few surrounding macros needed to trigger bugs and place assertions anywhere. Another benefit is that it won't be required to add include <debug.h> anymore to use BUG_ON, it will automatically be covered by api.h. No less than 32 occurrences were dropped. The FSM_PRINTF macro was dropped since not used at all anymore (probably since 1.6 or so).
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)