The shell AND/OR operators short-circuit on command success/failure, which is
the inverse of exit status (i.e. 0 means success, non-zero means failure).

llvm-svn: 7616

	o Not all versions of diff have the -q option
	o The cmp program is probably faster than diff
Fixed the logic that only copies the file over if no differences are found.

llvm-svn: 7615

llvm-svn: 7573

llvm-svn: 7572

  hide the bison command line.
* If running flex or bison gives us the files we already have, don't overwrite
  the ones we have, which cause unnecessary compilation.  I demand the ability
  to make meaningless changes without penalty!

llvm-svn: 7571

This can be done using the disable-shared tag that comes with libtool.
This change also required changing how .o libraries are linked.

llvm-svn: 7458

llvm-svn: 7255

up builds a little bit since it will prevent GNU make from matching these
phony targets against implicit rules.

llvm-svn: 7183

llvm-svn: 7174

llvm-svn: 7147

in a variable assignment.

llvm-svn: 7141

combined with a '/' separating them.

llvm-svn: 7121

One of the test Makefiles uses the same variable names for something else,
and this was probably interfering with it.

llvm-svn: 7024

system.

llvm-svn: 7014

llvm-svn: 6926

llvm-svn: 6812

if a home directory is provided by the environment.

llvm-svn: 6805

llvm-svn: 6798

llvm-svn: 6773

do the following:
	1) Determine their default values without $HOME
	2) Configure the default values as full absolute pathnames.
This should help fix the nightly test builds.

llvm-svn: 6719

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: 6418

llvm-svn: 6416

llvm-svn: 6409

Fixed the LibInstDir macro.
Added the use of the FLEX variable.

llvm-svn: 6405

llvm-svn: 6402

llvm-svn: 6238

Fix several bugs in the build system, including the use of the Debug version of Burg no matter what configuration is currently configured.

llvm-svn: 5744

llvm-svn: 5600

llvm-svn: 5551

llvm-svn: 5547

llvm-svn: 5449

llvm-svn: 5410

llvm-svn: 5396

output upon make clean

llvm-svn: 5347

llvm-svn: 5342

llvm-svn: 5332

is needed on BSD (MacOS).
Also, use -Ldir instead of -L dir on the link line.  Same reason...

llvm-svn: 5068

core.### where ### is the process ID. We use core.[0-9][0-9]* to avoid killing
core.c, core.cpp, and core.h files which may be part of benchmarks.

llvm-svn: 4913