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018443b8a1
The CPU variable, when used, is almost always exclusively used with "generic" to disable any CPU-specific optimizations, or "native" to enable "-march=native". Other options are not used and are just making CPU_CFLAGS more confusing. This commit just drops all pre-configured variants and replaces them with documentation about examples of supported options. CPU_CFLAGS is preserved as it appears that it's mostly used as a proxy to inject the distro's CFLAGS, and it's just empty by default. The CPU variable is checked, and if set to anything but "generic", it emits a warning about its deprecation and invites the user to read INSTALL. Users who would just set CPU_CFLAGS will be able to continue to do so, those who were using CPU=native will have to pass CPU_CFLAGS=-march=native and those who were passing one of the other options will find it in the doc as well. Note that this also removes the "CPU=" line from haproxy -vv, that most users got used to seeing set to "generic" or occasionally "native" anyway, thus that didn't provide any useful information.
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)