Add support to build MinGW tools using Cygwin. This is a Canadian cross
build.
Do not expand the directives when parsing a configuration file. Hold
in the package object the text as read from the configuration file. Still
parse the logic but leave the macros. This allows a configuration to be
varied when the build happens. The Canadian cross uses this to build a
build compiler used to build a Cxc runtime.
Add Cxc support to the build module. In the defaults add rm and rmfile
macros, add Cxc paths and pre-build script code.
In the setbuilder check for a Cxc build and if so and the package
allow Cxc build the build host version then the host target
version.
Add cygiwn support to the defaults processing and to the Windows module.
This is the reported known working tool set by the Milkymist project.
Currently this does not build on MacOS. It could be a host issue with
the age of the compiler.
Autoconf hard codes paths into itself. This change is a first
pass at allowing a clean environment to let automake build. The
ability to 'make install DESTDIR=xxx' autoconf then use it to
build automake needs a clean environment. The purpose is to
allow a prefix that needs root without building and packaging
when root.
Add arch build files. This allows archs to have different versions
and patches for specific tools.
Break the RTEMS config directory up into separate directories to
make long term maintenance easier. This required a change to config.py
to handle the config files being in subdirs of the config directory.
The defaults have been updated to include the install SB root so
packages built before a package are available.
Add makeinfo to the required tools. GDB (and others) need it to
build without error.
Add support for building the NIOS2 tool set. The source
is based on the Altera 4.11 src package. This package has been
split up and placed on the rtems.org server.
