Add NEWS files

2 files changed, 77 insertions, 1 deletions

diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..38845e0
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,76 @@
+Version 0.3.0
+
+  * Support for High Fidelity Builds (HFB).
+
+    The C++ compiler and link rules now detect when the compiler, options, or
+    input file set have changed and trigger the update of the target. Some
+    examples of the events that would now trigger an automatic update:
+
+    * Compiler change (e.g., g++ to clang++), upgrade, or reconfiguration.
+    * Change of compile/link options (e.g., -O2 to -O3).
+    * Rename of a source file name (e.g., foo.cpp to foo.cxx).
+    * Removal of a file from a library/executable.
+
+  * Support for the Intel C++ compiler on Linux.
+
+  * Command line options, variables, and buildspec can now be specified in any
+    order. This is especially useful if you want to re-run the previous
+    command with -v or add a forgotten config variable:
+
+    b test -v
+    b configure config.cxx=clang++
+
+  * Implement C++ compiler detection. Currently recognized compilers and their
+    ids (in the <type>[-<variant>] form):
+
+      gcc            GCC
+      clang          Vanilla Clang
+      clang-apple    Apple Clang (and the g++ "alias")
+      icc            Intel icpc
+      msvc           Microsoft cl.exe
+
+    The compiler id, version, and other information is available via the
+    following build system variables:
+
+    cxx.id
+    cxx.id.{type,variant}
+    cxx.version
+    cxx.version.{major,minor,patch,build}
+    cxx.signature
+    cxx.checksum
+    cxx.target
+    cxx.target.{cpu,vendor,system,version,class}
+
+  * Implement ar/ranlib detection. The following information is available
+    via the build system variables:
+
+    bin.ar.signature
+    bin.ar.checksum
+    bin.ranlib.signature
+    bin.ranlib.checksum
+
+  * On update for install the C++ link rule no longer uses the -rpath
+    mechanism for finding prerequisite libraries.
+
+  * Set build.host, build.host.{cpu,vendor,system,version,class} build system
+    variables to the host triplet. By default it is set to the compiler target
+    build2 was built with but a more precise value can be obtained with the
+    --config-guess option.
+
+  * Extracted header dependencies (-M*) are now cached in the auxiliary
+    dependency (.d) files rather than being re-extracted on every run. This
+    speeds up the up-to-date check significantly.
+
+  * Revert back to only cleaning targets in subdirectories.
+
+    Cleaning everything as long as it is in the same strong amalgamation had
+    some undesirable side effects. For example, in bpkg, upgrading a package
+    (which requires clean/reconfigure) led to all its prerequisite being
+    cleaned as well and then rebuilt. That was very surprising, to say the
+    least.
+
+  * Allow escaping in double-quoted strings.
+
+Version 0.2.0
+
+  * First public release.
diff --git a/buildfile b/buildfile
index 1f6ca0e..cd8cf12 100644
--- a/buildfile
+++ b/buildfile
@@ -5,7 +5,7 @@
 d = build2/ tests/ doc/
 
 ./: $d \
-doc{INSTALL LICENSE README version} \
+doc{INSTALL LICENSE NEWS README version} \
 file{INSTALL.cli config.guess config.sub bootstrap manifest}
 
 include $d