Take settings of LCC and LCC1XX from configure.

llvm-svn: 10902

Remove checks for many common Unix programs. Our build process currently
assumes they are there and makes no provisions for any other world-views.
(We can add some of these checks back at some later time if it should prove
useful, but right now, we do not need to check to see whether "rm" exists.)

Remove checks for many common standard C headers and functions. We assume
ISO/ANSI C++, and we always use the <cfoo> versions of ANSI C's <foo.h>
headers, so these checks will not help anything.

Edit configure's warning messages for clarity and content.

Change checks for "optional" programs to default to using "true" instead of
"false", so that a failure to find, e.g., etags, will be less likely to result
in make failing.

No longer shall we check for --enable-purify or --with-purify options.
No longer shall we propagate these to the Makefiles.

configure regenerated using autoconf-2.57.

Please feel free to send me any questions or comments you have. :-)

llvm-svn: 10814

YACC as bison -y.  In this way, we ensure that bison is being used, but
the Makefiles have macros for using bison itself and for getting bison to
act like it is traditional yacc.

llvm-svn: 10774

llvm-svn: 10350

directory.
Added Makefile.spec to the list of files to copy to the object directory.
Moved the configuration of $SourceDir to Makefile.config and corrected the
conditional that surrounds it.  This allows SPEC to reset it and get the correct
VPATH.

llvm-svn: 8475

Moved Makefile.common to Makefile.rules.  This makes project Makefiles easier
to support, and allows for easier overriding of default configuration values
that used to be in Makefile.common.
Modified Makefile.config.in to determine paths for directories (like
LLVM_SRC_ROOT) and to use the pwd binary as opposed to the shell builtin (this
works better for symbolic links).

llvm-svn: 8377

llvm-svn: 7234

llvm-svn: 7080

llvm-svn: 7079

up the test suite.  Since all the LLVM software assumes that config.h exists,
we can just do away with it for now.

llvm-svn: 7069

upon the target hardware architecture (as opposed to always checking the OS).

llvm-svn: 7050

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