- The previous approach would create a std::unique_ptr and store it in
a std::list in VariableValue (Origins)
- The new approach now stores Origins in a std::vector and constructs
VariableOrigin elements in-place on insertion.
- Instead of having two heap-allocations for every added VariableOrigin
instance, this performs only one.
- If multiple origins are added, std::vector's growth strategy may even
prevent a heap-allocation. There's a cost on growing the size of the
vector, because a copy of current elements will be necessary.
- Introduced reserveOrigin method to notify that multiple insertions
will be made, so that we can use std::vector's reserve and do a
single allocation (and copy of previous elements), and then just
initialize the new elements in-place.
- Added support to build 32-bit versions of libModSecurity on Linux
- Added support to build libModSecurity using clang on Linux (both
64-bit and 32-bit versions)
- Fixed macOS dependencies to include yajl, not only because it is
a required dependency, but because tests were not being run on
macOS builds without it.
- Added build 'without libxml' to Linux & macOS configurations.
- Added build 'without ssdeep' to Linux configurations (already in macOS
configuration)
- Added build 'with lmdb' to Linux & macOS configurations, replacing the
existing one 'without lmdb' because by default LMDB is disabled if not
explicitly turn on in configure.
- Removed 'without yajl' build because it's a required 3rd party
dependency.
- Added bison & flex dependencies to enable parser generation.
- The parser is not used interactively so we can avoid including
unistd.h, which is not available on Windows MSVC C++ compiler.
- The #ifdef WIN32 introduced in PR #3132 would probably be overwritten
when the parser is updated.
- By default, all the 3rd party dependencies are enabled.
- A dependency can be turned off by adding the "-DWITHOUT_xxx=ON" to
the call of vcbuild.bat
- List of 3rd party dependencies and associated option to turn them off:
- LMDB: WITHOUT_LMDB
- LUA: WITHOUT_LUA
- LibXML2: WITHOUT_LIBXML2
- MaxMind: WITHOUT_MAXMIND
- cURL: WITHOUT_CURL
