Reviewed by buntinas@.

Reviewed by buntinas@.

Necessary for moving other code to MPL.

Reviewed by buntinas@.

Reviewed by buntinas@.

potentially be shared by multiple processes (e.g., when PMI tunneling
is used). The processes are distinguished using an ID. Currently, a
negative ID represents the case where the fd's are not shared.

In the future, once PMI tunneling is fully working, we can either
completely remove the handling of the case where the ID < 0, or we can
retain it so the user (or Hydra itself) can choose to use PMI
tunneling for large systems and disable it for small systems.

the file names, that got messed up while adding the dynamic process
code.

passive RMA.

information.

we automatically create MPICH2-like version and release date files for
Hydra as well. For development versions (svn checkouts), if such
information is not available, we just use the svn version number.

This could have been done better if we were using svn-1.6, but for the
time being, this should work.

are sent as well. Otherwise, for libs that are not in the default
path, autoconf link or run tests might fail.

release.

WRAPPER_LIBS.

LIBS are all libraries detected and added by MPICH2. These are
maintained internally, so appropriate autoconf checks can use them
correctly. WRAPPER_LIBS are only used within mpicc and friends; they
are a combination of LIBS and other libraries such as opa and mpl
which are only generated at make time. These are maintained separately
so autoconf doesn't try to use them for link or run tests.

environment. CPPFLAGS was missing in this list.

sub-configures. Fixes ticket #983.

test. With so many processes being created, the system might be
oversubscribed, which makes the test run for longer.

setup before the timeout expires.

configure MPL again (it's already configured by MPICH2 separately).

strdup is not a macro.

testing. Some of the code is borrowed from the pm/utils code written
by Bill recently, but is slightly different in order to use Hydra's
internal structures.

enabled. This is needed because the memory tracing code is still left
behind in MPICH2 and not migrated to MPL yet. When memory tracing is
enabled, MPICH2 undefines strdup requiring the rest of the code to use
MPIU_Strdup instead.

else. Otherwise, the detection for other functionality might be
incorrect.

MPICH2 now.

macro. It seems to use device-specific code, so the device needs to be
built before the locks directory can be built.

[svn-r6061] Only add the aio library to WRAPPER_LIBS if there is a library; avoid adding the phrase "none needed" which autoconf uses to indicate that a routine is available without additional libraries

of CFLAGS. make dependencies fails without this.

release. The ABI version is still kept at 1.2.

those given on the command-line.

sure we read the entire command before processing it.