* Add CAN_DLOPEN_SELF so we can determine if dlopen(0) will open the
  program or not.
* Correct a warning messages to be a little more specific on what it checks

llvm-svn: 19184

llvm-svn: 19183

llvm-svn: 19182

llvm-svn: 19170

llvm-svn: 19169

llvm-svn: 19166

* Add checks for sterror and strerror_r functions
* Add check to determine if /dev/zero is needed for allocating RWX memory.

llvm-svn: 19148

Provide a check to determine if /dev/zero is needed for AllocateRWX function.

llvm-svn: 19147

the path names correctly.

llvm-svn: 19146

other #define's.

llvm-svn: 19145

* Make sure all headers used by lib/System have checks
* Use "standard" autoconf checks for certain problematic headers
For PR432:
* Resurrect --with-llvmgccdir so a specific llvm-gcc/llvm-g++ installation
  can be specified.

llvm-svn: 19142

llvm-svn: 19136

Create new variables LLVM_ON_UNIX and LLVM_ON_WIN32 so we can start getting
rid of reliance upon a symbolic link to switch implementations in lib/System

llvm-svn: 19131

llvm-svn: 19125

expands to a full path name. Substitute $outputname.exp" instead and it
makes a viable temporary file name. This gets around the problem with lli
on Cygwin linking but not having any "C" library functions linked into it.

llvm-svn: 19123

Patch contributed by Markus F.X.J. Oberhumer.

llvm-svn: 19118

llvm-svn: 19113

* Remove --with-llvmgccdir, not needed any more
* Search path for llvm-gcc and llvm-gxx
* Compute LLVMGCCDIR based on install path of llvm-gcc

llvm-svn: 19093

llvm-svn: 19092

llvm-svn: 19090

* Add checks for sbrk and getpagesize functions
* Alphebetize the checks for functions

llvm-svn: 19052

llvm-svn: 18990

llvm-svn: 18970

llvm-svn: 18952

llvm-svn: 18945

llvm-svn: 18888

llvm-svn: 18845

llvm-svn: 18694

llvm-svn: 18672

llvm-svn: 18420

* Don't search a bunch of .. directories for something we'd never find,
  because we don't imbed tclsh into LLVM.
* Look for various tclsh versions because some platforms don't install the
  tclsh link but just have tclsh8.3 or tclsh8.4 or some such.

llvm-svn: 18414

names that have version numbers in it so this macro, DJ_AC_PATH_TCLSH will
make the necessary checks. The makefile variable TCLSH is set to the path
found.

llvm-svn: 18382

llvm-svn: 18349

* Add instructions about upgrading autoconf

llvm-svn: 18348

llvm-svn: 18343

our own library so that it is magically hidden and we don't have to depend
on linking with -lltdl option.

llvm-svn: 18342

* organize programs we test for properly
* add new programs needed for documentation generation
* Adjust install paths so llvm stuff doesn't muck up /usr/local or /usr if
  $prefix is set to those.

llvm-svn: 18327

from the bzip2 support. This dead check produced the error:
test: -ne: unary operator expected

llvm-svn: 18289

llvm-svn: 18288

llvm-svn: 18254