variables instead of overwriting those variables.  This makes it more flexible
and keeps some of the test Makefiles from breaking.

llvm-svn: 7025

llvm-svn: 7023

is currently unused.

llvm-svn: 7022

system.

llvm-svn: 7014

of the llvm source directory.
The main modification was to add new environment variables: one set for llvm
entities and another set for source entities current being compiled.
This should make the Makefile more flexible and easier to understand as each
environment variable only does one thing.

llvm-svn: 6679

llvm-svn: 6432

llvm-svn: 6407

configuration options like CC and CXX.
Updated LLVMGCCDIR so that it refers to the valid LLVM gcc code.
Added pathnames and flags to be used by some of the tests.
Moved configuration options from Makefile.common to here since they
should all be in one place.

llvm-svn: 6404

llvm-svn: 5352

llvm-svn: 3882

source or some of our tests.

llvm-svn: 3853

llvm-svn: 3836

llvm-svn: 3832

* Makefile.config now should only specify the location of the gcc frontend if it
  is not in the place specified by the platform makefile.

llvm-svn: 3829

llvm-svn: 3825

llvm-svn: 3814

llvm-svn: 3793

llvm-svn: 3528

llvm-svn: 3526