By default, stop the universe build if a key component fails.  This
avoids useless builds when we know a package is broken anyway.
Provide a --keep-going option to override this behavior.

llvm-svn: 173723

Use --enable-werror during configure time rather than
--with-extra-options.  This is cleaner and easier to read.

llvm-svn: 172581

that just uses the new toolchain probing logic. This fixes linking with -m32 on
64 bit systems (the /32 dir was not being added to the search).

llvm-svn: 149651

Move to a model where we build whatever branches are checked out
in the source directories.  This was a bit too smart (and complicated)
in handling details best left to the user and the revision control
system.

In addition, get rid of support for llvm-gcc and building gcc as
these are no longer necessary.

llvm-svn: 149149

llvm-svn: 143673

Pass the correct jobs and threads information to the builder.
We were underutilizing the number of jobs and threads specified
by the user.

llvm-svn: 141977

Bit just a bit more verbose about what's going on.  Print options
to make to aid debugging.

llvm-svn: 141976

Add a --no-install option to skip installing components.  This
speeds up the develop/test cycle.

llvm-svn: 141975

And a --no-gcc option to skip dragonegg and gcc builds.
This greatly speeds up the develop/test cycle.

llvm-svn: 141974

llvm-svn: 134498

number of threads.  In that case make the number of threads
equal to the number of jobs and launch one jobs on each
thread.  This makes things work like make -j.

llvm-svn: 127045

Add some options for building LLVM in different environments:

--force-configure to force running configure before building.

--extra-llvm-config-flags
--extra-llvm-gcc-config-flags
--extra-gcc-config-flags

Pass additional argument to the various configure invocations.

This also eliminates a default build flavor because explicitly
specifying builds could result in build flavors being run repeatedly.

Finally, turn off fortran builds for the moment because install
appears to be broken.

llvm-svn: 126510

Fix Builder::execute() to more properly pass the desired environment
to tools.

llvm-svn: 126263

ecosystem.  This is a handy utility for checking changes before
committing them to the repository.

llvm-svn: 126136