This makes opening symlinks work universally in the build system tools.
Two mechanisms have been implemented, both of which don't always work.
The first is remapping via preprocessor macros. This fails where equally
named methods are used (e.g. STL fstream::open()). The other is using
hidden functions in the new libroot_build_function_remapper.a that is
linked into everything that is linked against libroot_build.so. This one
fails for functions that are defined inline in headers (Linux/glibc does
that). Together they seem to cover our build system needs ATM.
In HandleEntry() create the file/directory with sufficient permissions
for the user and set the archived permissions in HandleEntryDone(). This
makes sure child attributes and entries can be created.
* Match the attribute in a loop, use an attribute ID switch, do the
"seen" checks without the switch.
* Explicitly handle the case when encountering an unknown attribute.
* Use braces instead of brackets for lists.
* Semicolons and newlines separate items now. Remove handling for comma.
* Allow '\'' as quotation character.
* Remove assignment after variable name.
This should make the .PackageInfo format driver settings compatible, but
not vice versa. It is still stricter.
To avoid a clash with the regular version or an extra attribute level we
use the "package:provides.compatible" package attribute instead of
"package:version.major".
* The version string pattern is now:
<major>[.<minor>[.<micro>]][-<pre>][-<release>]
* Introduce B_HPKG_ATTRIBUTE_ID_PACKAGE_VERSION_PRE_RELEASE package
attribute.
* Add "preRelease" field to BPackageVersionData.
* Add "preRelease" property to BPackageVersion and packagefs's Version.
* Adjust package reader and writer code accordingly.
* Add utility class AutoPackageAttributes and AttributeCookie subclass
AutoPackageAttributeCookie.
* UnpackingAttributeCookie::Open() does now try to create a
AutoPackageAttributeCookie, when it doesn't find the attribute in the
PackageNode.
* Adjust UnpackingAttributeDirectoryCookie to also list auto-generated
attributes.
Currently the only supported attribute is "SYS:PACKAGE", which is the
file name of the package containing the node.
Added trivial implementation for AttributeCookie::Close() and
AttributeDirectoryCookie::Close() and removed the identical Close()
implementations in derived classes.
* Add ResolvableFamily and DependencyFamily classes for grouping equally
named resolvables/dependencies.
* Add hash tables to PackageFSRoot to track resolvables and
dependencies. That is done in {Add,Remove}Package.
* Resolvable does now have a list of Dependency objects, the ones it
satisfies.
