win32: fix incorrect usage of isWindows()

Merge branch 'balay/fix-retrieval-permissions'

MPI: check for MPIX_Ibarrier (e.g., BG/Q)

Sys PetscMaxSum: use MPI_Reduce_scatter_block when available (MPI-2.2)

Merge branch 'jed/use-coptflags'

* jed/use-coptflags:
compilerOptions.py: use -O0 with gcc when in debug mode

Merge branch 'jed/stdint.h'

Merged to remove warnings in master about casts between PetscInt* and external package equavilents with 64 bit indices

need to first check if the compile fails with _Complex before checking the link

Some gcc compilers with -std89 do not warn on double complex but warn on double _Complex, thus make configure test use the same form as actual source code and turn off complex usage when it warns

Sys: configure test for MPI_INT64_T, it need not be a macro

start blacklist for compiler error messages since currently BuildSystem ignores ALL output!

hdf5: use make_j to build

configure: Fix --download-sowing error with 'changing file permissions' of untared files.

The following error is triggered by 'git export' adding
'pax_global_header' to tarballs. Some veriants of '

configure: Fix --download-sowing error with 'changing file permissions' of untared files.

The following error is triggered by 'git export' adding
'pax_global_header' to tarballs. Some veriants of 'tar utils'
see this as first entry [file] in the tarballs TOC - causing
error with 'dirname' detection.

---------------------
Error changing permissions for obtained from
/Users/anitescu/Library/petsc/ompi/externalpackages/_d_sowing-1.1.16e.tar.gz : Could not execute "cd
/Users/anitescu/Library/petsc/ompi/externalpackages; chmod -R a+r ;find -type d -name "*" -exec chmod a+rx {} \;":
usage: chmod [-fhv] [-R [-H | -L | -P]] [-a | +a | =a [i][# [ n]]] mode|entry file ...
chmod [-fhv] [-R [-H | -L | -P]] [-E | -C | -N | -i | -I] file ...
find: illegal option -- t
find: illegal option -- y
find: illegal option -- p
find: illegal option -- e

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Doc: Fixed configure doc

compilerOptions.py: use -O0 with gcc when in debug mode

GCC's -fno-inline is the default when optimization is off (-O0), so we
do not need to pass it again. Pass the flag to the C++ and Fortran
com

compilerOptions.py: use -O0 with gcc when in debug mode

GCC's -fno-inline is the default when optimization is off (-O0), so we
do not need to pass it again. Pass the flag to the C++ and Fortran
compilers because that was missed in the original.

commit e3218094707942d5674f57c17eb63a9af846a945
added -fno-inline for better debugging with gnu compilers; take it out if it breaks something

This is not perfect because it only applies to GNU and Clang compilers,
but those are the most common used for debugging.

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Merge branch 'balay/move-externalpackages-dir'

configure: remove self.archIndependent as its not being used.
[it is used to create externalpackages/package/arch dir which is unused]

configure: switch to using PETSC_DIR/PETSC_ARCH/externalpackages by
updating package.py to use externalpackages.py as the externalPackagesDirProvider

configure: switch to setting defaultInstallDir [in package.py] directly from PETSc/Configure.py
[instead of guessing from petscdir.dir and arch.dir]

configure: update MPI.py with this change

Merge branch 'maint'

configure: parsing in checkCLibraries() breaks when stdout has missing new line.
So stdout ='.. -lrt',stderr='icc ver' appars as '.. -lrticc ver' with the error
ld: cannot find -lrticc

Merge branch 'jed/gnumake'

OMAKE change requires reconfigure. Symlink fix critical for use of
gmake when PETSC_DIR involves symlinks.

* jed/gnumake:
gmakegen.py: actually fix symlink translation

Merge branch 'jed/gnumake'

OMAKE change requires reconfigure. Symlink fix critical for use of
gmake when PETSC_DIR involves symlinks.

* jed/gnumake:
gmakegen.py: actually fix symlink translation
gmakegen.py: fix relative paths when PETSC_DIR contains symlink
gmake: flip OMAKE/OMAKE_NOPRINTDIR to OMAKE_PRINTDIR/OMAKE. [we need OMAKE_PRINTDIR only for gmake compile targets]
allclean: support clean with gnumake/cmake/legacy

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gmake: flip OMAKE/OMAKE_NOPRINTDIR to OMAKE_PRINTDIR/OMAKE.
[we need OMAKE_PRINTDIR only for gmake compile targets]

Merge branch 'balay/fix-package-dir-rel-path'

Merge branch 'jed/config-cleanup'

Consolidate output formatting to reduce the amount of redundancy, then
optimize BlasLapack, functions, and libraries to classify missing
functions in batches. This

Merge branch 'jed/config-cleanup'

Consolidate output formatting to reduce the amount of redundancy, then
optimize BlasLapack, functions, and libraries to classify missing
functions in batches. This provides a 15-20% speedup in my testing.

* jed/config-cleanup:
config: python-2.4 does not support __missing__()
config: python-2.4 does not support decorators
config: fix classification to return ALL good/bad items
config libraries: skip link test when functions=[]
Revert "config BlasLapack: remove unused checkForRoutine"
config: add @memoize decorator and use for setCompilers.isGNU
config: remove unnecessary unused variable in test
config: consolidate classification based on boolean set functional
config MPI: use libraries.checkClassify to find missing functions
config functions: change ENOSYS safeguard to proceed further
config: add examineOutput callbacks to optimize functions.checkBatch
config functions: add checkClassify
config BlasLapack: mangleBlas does not need special logic for f2c
config BlasLapack: trivial loop clean-up
config BlasLapack: remove unused checkForRoutine
config: add libraries.checkClassify to find missing functions, use in BlasLapack
config libraries.check: test multiple functions in single compile
config libraries.check: consolidate function-specific parts
config BlasLapack: checkLib need only look for Lapack funtions if foundBlas
config BlasLapack: checkLapack should check for ALL routines
config BlasLapack: remove f2cpkg variable that is no longer used
config executeShellCommand: trim empty stdout and normalize newlines
config: consolidate reporting of compiler/linker/archiver errors
config: checkLink: remove redundant output
config: do not redundantly log command with 'sh:'
config: remove deprecated 'apply' in favor of func(*args, **kwargs)

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config: fix ArgDir() to support relative path. Now --with-saws-dir=../saws/build works