are eventually dumped into CPPFLAGS.

reimplementing the same code.

autoconf variables to be passed in as well.

environment variable propagation cleaner.

If the <complex> header was unavailable it was still possible to end up
with HAVE_CXX_COMPLEX defined.  This causes problems for the various
predefined MPI reduction operators, which the presence/absence of
HAVE_CXX_COMPLEX to conditionally compile case statements.  Incorrect
values can result in "duplicate case value" errors from the compiler.

No reviewer.

src/openpa location, but rather from the standard lib directory.

Reviewed by goodell.

of the example programs is successful. Fixes ticket #993.

This commit moves the existing tracing memory allocation and valgrind
code utilities to MPL.  This permits other code like gforker to use the
trmem code while allowing MPICH2 to remain thread-safe when using
tracing.  gforker is not updated to the MPL routines by this commit.

Reviewed by buntinas@.

Reviewed by buntinas@.

Necessary for moving other code to MPL.

Reviewed by buntinas@.

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.

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.

of CFLAGS. make dependencies fails without this.

subdirs need to be modified to this format as well.

 it to mpicc and friends, pkgconfig files, etc.

was happening because the rest of MPICH2 is not setting WRAPPER flags
correctly.

and friends are automatically exported down to subconfigures. If a
sub-configure chooses not to use whatever is exported by the
upper-level configure, it can reset the flags to the user-specified
ones using a new macro.

rebuilds. Fixes ticket #930.

Reviewed by goodell.

option.

Reviewed by buntinas.

mkdir to figure out whether to use "mkdir -p", instead of something
else. Also added a comment explaining this issue. Fixes ticket #939.

Reviewed by buntinas.

be controlled independently.

Reviewed by buntinas.

released formally in the mpich2-1.3 series after more testing.

pick up (this will be displayed in mpiexec -info). This required
replacing the "VERSION" string to "MPICH2_VERSION" since VERSION seems
to be overwritten by autoconf.

Reviewed by buntinas.

been replaced with the new pipelined algorithm for a few releases.

Reviewed by goodell.

Fixes shm and ssm builds that were broken by r5493.

No reviewer.

OPA_ptr_t would be the same size as a pointer. This is not true for
platforms where OPA_ptr_t is larger in order to keep alignments, for
example. This should fix ticket #906.

Reviewed by goodell.

autoconf.

to be more thorough in its checks in the newer versions of autoconf.

This optimization can greatly improve multi-threaded message rates for
MPI_COMM_WORLD, particularly on platforms where a fetch-and-inc is
potentially expensive (like BG/P).

No reviewer.

It provides little to no performance gains over GLOBAL while requiring
plenty of additional testing and maintenance.  Deleting it should
simplify working with the fine-grained threading code and reduce the
overall maintenance burden.

No reviewer.