version (instead of 2 fixed choices).

llvm-svn: 8525

With these changes, you can still run makellvm directly from your source tree
as follows:
  % makellvm [toolname]	## looks for obj-root in default places (see below)
or
  % makellvm -obj obj-root [toolname]	## specify obj-root explicitly.

With the first from, `makellvm' checks the following places in order
and uses the first one that contains the file `Makefile.config':
(1) Your src-root directory
(2) /localhome/$USER/llvm
Other choices can be added to this list.

llvm-svn: 8509

Add debugging support.

llvm-svn: 8389

(2) Detect LLVMDIR using the LEVEL variable in Makefile.
(3) To perform #2 propertly, use the same Makefile search rules as gmake.

llvm-svn: 7228

which are interpreted by this script).

llvm-svn: 3818

since gnumake doesn't exist on our new spiffy Linux machines.

llvm-svn: 3815

llvm-svn: 3730

Also, add -h option to print usage information.

llvm-svn: 3729

llvm-svn: 3727