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| -rw-r--r-- | NEWS | 120 |
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@@ -1,3 +1,123 @@ +Version 0.7.0 + + * Initial support for Clang targeting MSVC runtime (native Clang interface, + not the clang-cl wrapper). + + * C++ Modules TS introduction, build system support, and design guidelines + documentation. + + * New {c,cxx}.guess modules. + + These can be loaded before {c,cxx} to guess the compiler. Based on this + information we can then choose the standard, experimental features, etc. + For example: + + using cxx.guess + + if ($cxx.id == 'clang') + cxx.features.modules = false + + cxx.std = experimental + + using cxx + + * New {c,cxx}.class variables. + + Compiler class describes a set of compilers that follow more or less + the same command line interface. Compilers that don't belong to any of + the existing classes are in classes of their own (say, Sun CC would be + on its own if we were to support it). + + Currently defined compiler classes: + + gcc gcc, clang, clang-apple, icc (on non-Windows) + msvc msvc, clang-cl, icc (Windows) + + * Support for C/C++ runtime/stdlib detection ({c,cxx}.{runtime,stdlib} + variables; see cc/guess.hxx for possible values). + + + * New __build2_preprocess macro. + + If cc.reprocess is true, the __build2_preprocess is defined during + dependency extraction. This can be used to work around separate + preprocessing bugs in the compiler. + + * Support for for-loop. The semantics is similar to the C++11 range-based + for: + + list = 1 2 3 + for i: $list + print $i + + Note that there is no scoping of any kind for the loop variable ('i' in the + above example). In the future the plan is to also support more general + while-loop as well as break and continue. + + * New info meta operation. + + This meta operation can be used to print basic information (name, version, + source/output roots, etc) for one or more projects. + + * New update-for-{test,install} operation aliases. + + * Support for forwarded configurations with target backlinking. See the + configure meta-operation discussion in b(1) for details. + + * Improvements to the in module (in.symbol, in.substitution={strict|lax}). + + * New $directory(), $base(), $leaf() and $extension() path functions. + + * New $regex.split(), $regex.merge() and $regex.apply() functions. + + * Support for (parallel) bootstrapping using GNU make makefile. + + * Support for chroot'ed install (aka DESTDIR): + + b config.install.root=/usr config.install.chroot=/tmp/install + + * Support for prerequisite-specific variables, used for the bin.whole + variable ("link whole archive"). + + * Regularize directory target/scope-specific variable assignment syntax: + + $out_root/: foo = bar # target + $out_root/ foo = bar # scope + $out_root/ + { + foo = bar # scope + } + + * Support for structured result output (--structured-result). + + * Support for build hooks. + + The following buildfiles are loaded (if present) at appropriate times from + the out_root subdirectories of a project: + + build/bootstrap/pre-*.build # before loading bootstrap.build + build/bootstrap/post-*.build # after loading bootstrap.build + build/root/pre-*.build # before loading root.build + build/root/post-*.build # after loading root.build + + * New run directive. + + Now it is possible to: + + run echo 'foo = bar' + print $foo + + * New dump directive. + + It can be used to print (to stderr) a human-readable representation of the + current scope or a list of targets. For example: + + dump # Dump current scope. + dump lib{foo} details/exe{bar} # Dump two targets. + + This is primarily useful for debugging as well as to write build system + tests. + Version 0.6.0 * C++ Modules TS support for GCC, Clang, and VC. |