Patches for OpenFOAM(R) compilation on macOS. Detailed installation instructions can be found in wiki.

This offering is not approved or endorsed by OpenCFD Limited, producer and distributor of the OpenFOAM software via www.openfoam.com, and owner of the OPENFOAM(R) and OpenCFD(R) trade marks.

OPENFOAM(R) is a registered trade mark of OpenCFD Limited, producer and distributor of the OpenFOAM software via www.openfoam.com.

• Updated Foundation dev patch.
• Updated guides in wiki.

• Updated Foundation dev patch.

• Added OpenFOAM 11 patch

• Updated Foundation dev patch.

• OpenFOAM 10 patch
• OpenFOAM v2206 patch (submitted upstream)

• Fixed OpenFOAM 9 patch (since GMP and MPFR formulae are not linked, their path should be passed explicitly).
• Updated dev patch.

Added patch for OpenFOAM 9.

Added patch for OpenFOAM v2012. Slight correction of the patch for the previous version. OpenQBBM fixed obsolete gamma function issue, yet, decided to leave alphaMax constructor issue in JohnsonJacksonParticleSlipFvPatchVectorField.C where it was.

Added OpenFOAM 8 and OpenFOAM v2006 patches.

In case of OpenFOAM 8 it is simple adaptation of the previous patch.

For OpenFOAM v2006 due to external modules it was necessary to make more changes:

• Changed ADIOS configuration logic (has_adios script). Instead of looking for header and library, look up adios2-config utility and check if cxx-flags and cxx-libs are not empty.
• Avalanche defines ntohl inline function, yet does not check it is already defined. So on OS X compilation stops with rather misleading messages about missing braces.
• OpenQBBM module uses obsolete gamma function. Decided to change it into tgamma. NOTE! Maybe it should be changed to lgamma instead, if original author meant to calculate logarithm of gamma (as in glibc).

Updated version OpenFOAM(R) 5.x, 6, and 7 patches. Added OpenFOAM(R) v1912 patch. Notes:

• Set C++ standard to C++14 in wmake rules due to CGAL 5.0. It started to requite C++14 and became header only.
• Rewrote SIP remedy code. It was started as an issue in OpenCFD GitLab and resulted in modified configuration logic.
• Fixed csh initialisation scripts, so users of tcsh can use source etc/cshrc to initialise environment.

Small note on WM_LABEL_SIZE=64: since all Mac OS X installations are performed on personal notebooks I do not see a point in using 64-bit labels. So I won't test this configuration any more. Though I am open to suggestions and reasoning behind using 64-bit labels.

Added version 7 patch. Updated patches for 5.x and 6.

Updated version 6 and dev patches.

Added patches for version 6.

Someone in the Foundation hates versioning, so now it is impossible to distinguish release (let's call it 6.0) from bug-fixes version (6.x). Guess, next step will be to abandon versions at all.

Updated dev patch.

dev branch wmkdep now makes certain substitutions in dep files (-R command line switches). It fails to do it properly if -R / is passed to the command.

There were two possibilities: either to modify wmake/rules/General/transform by removing line -R '$(WM_THIRD_PARTY_DIR)/' '$$(WM_THIRD_PARTY_DIR)/' \, or add check for / search pattern in wmkdep.l. Opted for latter.

• Updated 5.x patch.
• In dev branch some fancy modifications to wmkdep were made, so I have decided to postpone patch update for this version.

Updated 5.x and dev patches.

Updated 5.x and dev patches. Since Foundation decided to abandon version numbering, 5.0 patch will not receive any updates or corrections.

Update

• Added patches for versions 5.0 and 5.x (they already started to diverge).
• Updated patches for 4.0, 4.1, and 4.x to remedy a problem of 64-bit label build reported here: https://www.cfd-online.com/Forums/openfoam-installation-windows-mac/187102-installing-openfoam-4-1-mac-os-sierra.html#post658361.

WM_QUIET_RULES are temporary gone in 5.x series.

wmake unification made it simpler to update patches, so returned 3.0.x and dev into tree (it seems 3.0.x is still widely used), updated foamJob script to account for macOS releases greater than 15.

Update.

• Only 2.2.x, 2.4.x, 4.0, 4.1, and 4.x patches are kept. Other versions could appear later, but since I do not use them, odds are rather low (old patches still can be found in repository history).
• wmake is unified across versions (with WM_QUIET_RULES, to reduce noise in log-files).
• Latest CLT update requires addition of -Wno-undefined-var-template to avoid excess of warnings.
• Paraview configuration file now looks for Paraview*.app, this resolves #32.
• Check for wxt terminal is added to foamMonitor script, a workaround for #31.
• IOobject emits mode-line for vi and adds foamVersion to header.

Build process was tested on

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.12.4
BuildVersion:	16E195

with

$ clang++ --version
Apple LLVM version 8.1.0 (clang-802.0.42)
Target: x86_64-apple-darwin16.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

and the following third-party software

$ brew list --versions
...
boost 1.63.0
cgal 4.9.1
eigen 3.3.3
gmp 6.1.2
gnuplot 5.0.6
isl 0.18
libmpc 1.0.3
metis 5.1.0
mpfr 3.1.5
open-mpi 2.1.0
parmetis 4.0.3_4
scotch 6.0.4_4
...

Following recent bug-reports updated dev patch (up to commit 37c5d28). Major changes:

• Usage of CLT utilities are forced (using xcrun), hope this will resolve problems of third party cpps and flexes.

• Draft of WM_SILENT_RULES, so build log files now look like

  + wmake dummy
  /Users/alexey/OpenFOAM/OpenFOAM-dev/src/Pstream/dummy
      LN ./lnInclude
     DEP UIPread.C
     DEP UPstream.C
     DEP UOPwrite.C
      CC UPstream.C
      CC UIPread.C
      CC UOPwrite.C
      LD libPstream.dylib
  ->> libPstream.dylib

• IOobject's writeEndDivider is modified to emit mode line for vim.

Added patch for version 4.1 (it is almost the same as 4.x-7dce081 patch).

Updated 4.x patch. Build process was tested on

$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.12
BuildVersion:	16A323

with

$ clang --version
Apple LLVM version 8.0.0 (clang-800.0.38)
Target: x86_64-apple-darwin16.0.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

and the following third-party packages

$ brew list --versions
...
boost 1.61.0_1
cgal 4.9
eigen 3.2.9
gmp 6.1.1
libmpc 1.0.3
metis 5.1.0
mpfr 3.1.5
open-mpi 2.0.1
parmetis 4.0.3_4
parmgridgen 0.0.2
scotch 6.0.4_4
...

Updated 2.4.x (problem with /usr/include in -I flags for CGAL) and 4.x (new commits in this branch) patches.

Patches for 4.0 and 4.x (well, slight modification of the last -dev patch).

Updated 3.0.x and dev patches. Currently by default foamyMesh is not built, if you need it, set FOAMY_HEX_MESH environment variable to non-empty value (for example add export FOAMY_HEX_MESH=Y to prefs.sh).

Build process was tested on

$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.11.5
BuildVersion:	15F34

with

$ clang++ --version
Apple LLVM version 7.3.0 (clang-703.0.31)
Target: x86_64-apple-darwin15.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

and the following third-party packages:

$ brew list --versions
boost 1.60.0_2
cgal 4.7
gmp 6.1.0
metis 5.1.0
mpfr 3.1.4
open-mpi 1.10.2_1
parmetis 4.0.3_3
parmgridgen 0.0.2
scotch 6.0.4_1

Updated 3.0.1 and 3.0.x patches to fix problem on CLT only systems (reported by Nikolai Tauber), this includes:

1. Correction of wmake rules (if xcrun --show-sdk-path returned empty string remove part of CC command).
2. Small addition to Allwmake script to set up environment if it is not. Since any way Allwmake script should be run from $WM_PROJECT_DIR, we could source etc/bashrc in the beginning to remedy quite confusing ./Allwmake: line 7: /wmake/scripts/AllwmakeParseArguments: No such file or directory.

Build process was tested on

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.11.4
BuildVersion:	15E65

with

$ clang++ --version
Apple LLVM version 7.3.0 (clang-703.0.29)
Target: x86_64-apple-darwin15.4.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

and the following third-party software (there is still problem with new Homebrew's METIS, so, no METIS this time)

$ brew list --versions
boost 1.60.0_1
cgal 4.7
gmp 6.1.0
mpfr 3.1.3
open-mpi 1.10.2
scotch 6.0.4_1

1. Updated patches for 3.0.x and dev.

• in 3.0.x unsilenced wmkdep utility, so now this part of build process is marked as [DEP]
• By accident added matrix constraining in scalar transport solver.

2. Tried to extend third-party software configuration logic, i.e. if brew is not found, try port, and fall-back to /usr/local if neither brew, nor port were found. Since I have only brew on my laptop, functionality is not tested.

Though OpenCFD distributes Docker images for OS X, to me native compilation looks more convenient (for people who does not like compilation, there are precompiled binaries). Installation guide is almost the same as for any other release (OpenFOAM(R) release & Homebrew), except:

1. Download URL is OpenFOAM-v3.0+.tgz.
2. Graphics function objects ($FOAM_SRC/postProcessing/functionObjects/graphics) depend on VTK. You can install the library with Homebrew (right now there is Python library path problem with bottled version, so either install using --build-from-source flag, or edit $(brew --prefix)/opt/vtk/lib/cmake/vtk-6.3/Modules/vtkPython.cmake so it points to valid Python installation).
3. Compilation of Zoltan renumber functionality is silently skipped.

Updated patch for development OpenFOAM(R) branch.

1. Patch for OpenFOAM(R) 3.0.1 (it was the same as the last 3.0.x patch)
2. Since any way I am testing success of build process, decided to upload binary archives. More details can be found in wiki.

Major update.

1. Changed wmake rules for Darwin. Hopefully this solves problems with missing symbols (1, 2). Though, since I never had this problem on my laptop it is a question of external testing. No, it did not solve the problem.

2. Fixed bugs and typos in RunFunctions, also added overwrite flag from dev-repository (now run(Application|Parallel) functions have -f, -force, --force, -overwrite flags to run application overwriting log-file, and -a, -append, --append flags to run application and append to log-file).

3. Just for fun added emulation of "silent rules" in 3.0.x. To turn this feature on you need to set WM_SILENT_RULES to non-empty value (export WM_SILENT_RULES=y in prefs.sh will do the trick). And instead of

   daphne:icoFoam$ wmake
   $WM_PROJECT_DIR/applications/solvers/incompressible/icoFoam
   Making dependency list for source file icoFoam.C
   xcrun c++ -arch x86_64 -Ddarwin64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=64 -Wall -Wextra -Wno-unused-parameter -Wno-overloaded-virtual -Wno-unused-variable -Wno-unused-local-typedef -Wno-invalid-offsetof -Wno-c++11-extensions -O3  -DNoRepository -ftemplate-depth-100 -I$WM_PROJECT_DIR/src/finiteVolume/lnInclude -I$WM_PROJECT_DIR/src/meshTools/lnInclude -IlnInclude -I. -I$WM_PROJECT_DIR/src/OpenFOAM/lnInclude -I$WM_PROJECT_DIR/src/OSspecific/POSIX/lnInclude   -fPIC -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -c icoFoam.C -o $WM_PROJECT_DIR/platforms/darwin64ClangDPInt64Opt/applications/solvers/incompressible/icoFoam/icoFoam.o
   xcrun c++ -arch x86_64 -Ddarwin64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=64 -Wall -Wextra -Wno-unused-parameter -Wno-overloaded-virtual -Wno-unused-variable -Wno-unused-local-typedef -Wno-invalid-offsetof -Wno-c++11-extensions -O3  -DNoRepository -ftemplate-depth-100 -I$WM_PROJECT_DIR/src/finiteVolume/lnInclude -I$WM_PROJECT_DIR/src/meshTools/lnInclude -IlnInclude -I. -I$WM_PROJECT_DIR/src/OpenFOAM/lnInclude -I$WM_PROJECT_DIR/src/OSspecific/POSIX/lnInclude   -fPIC -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -Wl,-execute,-undefined,dynamic_lookup $WM_PROJECT_DIR/platforms/darwin64ClangDPInt64Opt/applications/solvers/incompressible/icoFoam/icoFoam.o -L$WM_PROJECT_DIR/platforms/darwin64ClangDPInt64Opt/lib \
   	-lfiniteVolume -lmeshTools -lOpenFOAM -ldl  \
   	 -lm -o $WM_PROJECT_DIR/platforms/darwin64ClangDPInt64Opt/bin/icoFoam   
   

   you will get

   daphne:icoFoam$ wmake
   $WM_PROJECT_DIR/applications/solvers/incompressible/icoFoam
      [CC] icoFoam.C
      [LD] icoFoam
   

As usual, build was tested on:

daphne:openfoam-os-x$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.11.2
BuildVersion:	15C50

with the following compiler:

daphne:openfoam-os-x$ clang++ --version
Apple LLVM version 7.0.2 (clang-700.1.81)
Target: x86_64-apple-darwin15.2.0
Thread model: posix

and the following thrid party packages:

daphne:openfoam-os-x$ brew list --versions
boost 1.59.0
cgal 4.6.3
eigen 3.2.6
gmp 6.1.0
metis 5.1.0
mpfr 3.1.3
open-mpi 1.10.1
parmetis 4.0.3_3
parmgridgen 0.0.2
scotch 6.0.4_1

1. Updated patch for 3.0.x.
2. Since 3.0.x and dev branches started to diverge, returned dev patch to the repository.

Added patch for swak4Foam and wiki page with installation guide. Maybe one day it will be imported into Mercurial repository, I do not have plans to open pull request on Sourceforge.

Updated patches to include

1. Working getApplication function (resolves #14)
2. Extended functionality for runApplication and runParallel.
   • -f (or --force) flag to force log-file overwrite
   • -a (--append) to append to log-file instead of overwriting
3. RunFunctions now also automatically source $WM_PROJECT_DIR/etc/bashrc if run on El Capitan with enabled SIP (workaround for #15).

Updated 3.0.0 and 3.0.x patches to include build logic for Scotch and METIS with 64-bit index types. Libraries can be installed using files (scotch64.rb and metis64.rb) from formulae folder. See OpenFOAM 3.0.(0|x) & WM_LABEL_SIZE=64.

1. Initial commit of 3.0.0 and 3.0.x patches (at this point they are identical). For 32 bit labels nothing changed in installation procedure. For 64 bit labels currently Scotch and METIS decomposition methods along with MGridGenGamgAgglomeration agglomeration method are disabled. They could be enabled in the future patches after testing 64 bit indexes in Scotch and METIS.

2. Update for 2.2.x, 2.3.1, 2.3.x, 2.4.0, and 2.4.x patches that includes fixes in printStack function.

3. Dropped 2.1.x patch (you can find it in earlier releases/commits) as I do have enough resources to support it. Temporarily removed -dev patch, currently it is equal to 3.0.x.

Build was tested on

alexey at daphne in openfoam-os-x$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.11.1
BuildVersion:	15B42

with

alexey at daphne in openfoam-os-x$ clang++ --version
Apple LLVM version 7.0.0 (clang-700.1.76)
Target: x86_64-apple-darwin15.0.0
Thread model: posix

and these third party libraries

alexey at daphne in openfoam-os-x$ brew list --versions
boost 1.59.0
cgal 4.6.3
gmp 6.0.0a
metis 5.1.0
mpfr 3.1.3
open-mpi 1.10.0
parmetis 4.0.3_2
parmgridgen 0.0.1
scotch 6.0.4_1

Being upset by sigSegv in renumberMesh (guess segmentation violations happen in other places as well, yet I found it in renumberMesh), copied NullObject concept from -dev repository. Now everything seems to be OK (at least renumberMesh works).

Made additional cosmetic corrections (like SloanRenumber build script, so it checks for library with dylib extension instead of so).

Build process was tested on

alexey at daphne in openfoam-os-x$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.5
BuildVersion:	14F27

with the following compiler:

alexey at daphne in openfoam-os-x$ clang --version
Apple LLVM version 7.0.0 (clang-700.0.72)
Target: x86_64-apple-darwin14.5.0
Thread model: posix

and these third party packages:

alexey at daphne in openfoam-os-x$ brew list --versions
boost 1.58.0
cgal 4.6.1
metis 5.1.0
open-mpi 1.8.4_1
parmetis 4.0.3
parmgridgen 0.0.1

Updated patches for OpenFOAM(R) 2.3.1 and 2.4.0.

Updated patches for 2.3.x and 2.4.x (forgot certain things). Added patches for 2.2.x and 2.1.x (reinterpret_cast<const void*> solution for reference address seems to solve memory corruption problem).

Test platform and third party software versions did not change since September 5.

Updated patches for 2.3.x (OpenFOAM-2.3.x-2f9138f.patch) and 2.4.x (OpenFOAM-2.4.x-8685344.patch) versions. This time decided not to be too invasive, so ended up with 50k patches (with stats). There were 3 general types of modifications:

1. OS X specifics in OSspecific/POSIX folder. These are again has two types: additions of certain OS X headers (like sys/time.h in clockTime.H) and reimplementation of functionality (like chunks in printStack.C, POSIX.C, and sigFpe.?)
2. Clang's cpp does not fully support "traditional mode", so it does not understand continuations after comments. There were two variants: remove these comments or install traditional cpp. Chose the first variant.
3. Warnings. First type comes from OpenFOAM(R)'s desire to take address of the reference and the other one comes from third party software (updated CGAL). First problem could be solved by -Wno-... flag, yet I have chosen reinterpret_cast way. The second problem is solved by conditional compilation and pragmas.

Cause these patches were "fresh start", finally paid attention to and implemented SetNaN functionality; simplified sigFpe code; implemented dlLoaded function. Also printStack.C was a little bit revised to contract HOME and PWD in library file names (in previous version HOME and PWD paths was replaced only in resolved source files).

And since the corrections are mostly in the old files, hope creation of patches for new versions will become much easier.

Build was tested on:

alexey at daphne in ~$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.5
BuildVersion:	14F27

with the following compiler

alexey at daphne in ~$ clang --version
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.5.0
Thread model: posix

and the following third party packages:

alexey at daphne in ~$ brew list --versions
boost 1.58.0
cgal 4.6.1
gmp 6.0.0a
libmpc 1.0.3
metis 5.1.0
mpfr 3.1.3
open-mpi 1.8.4_1
parmetis 4.0.3
parmgridgen 0.0.1

Added patch for OpenFOAM-dev (commit 40310a5). Though this time patch is less invasive, so maybe it will work with later commits.

The patch is a continuation of an attempt to build OpenFOAM(TM) with -Wall -Wextra -std=c++11 flags.

1. register storage class is removed in dev-branch, so the only places where it appears are sources generated by flex. Added pragmas to suppress warnings.
2. Still lots of unused parameter warnings. Commented them out (sometimes it is convenient to keep name of parameter since it a bit of documentation, sometimes parameters have names like p, yet for consistency I have decided to use comments everywhere). Patch was submitted upstream.
3. printStack functionality uses only lldb. So implementation became simplified compared to 2.(3|4).x version.
4. Boost and CGAL both have unused parameters and tautological comparison warnings, added pragmas around include lines to ignore them.
5. Scotch decomposition method is disabled when OpenFOAM(TM) is build with WM_LABEL_SIZE=64, since it requires recompilation of Scoth. Maybe later I will create special Homebrew formula for this version.
6. Clang on OS X does not want to do certain implicit conversions, so long.H and ulong.H headers were added to explicitly create Ostream methods for long and unsigned long types.
7. Miscellaneous bugs where revealed due to no implicit type coercion (like if (mag(A > B)) instead of if (mag(A) > B)), they were fixed. Patches are submitted upstream.

Since the patch is a fresh start compared to 2.3.x and 2.4.x versions, there could be certain bugs, which were not revealed by quick tutorials check. Use github Issues functionality to report them.

Build process was tested on:

alexey at daphne in ~$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.4
BuildVersion:	14E46

with the following compiler

alexey at daphne in ~$ clang --version
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.4.0
Thread model: posix

and with the following third party package versions:

alexey at daphne in ~$ brew list --versions
boost 1.57.0
cgal 4.6
gmp 6.0.0a
metis 5.1.0
mpfr 3.1.2-p11
open-mpi 1.8.4_1
parmetis 4.0.3
parmgridgen 0.0.1
scotch 6.0.4_1

Added patches for OpenFOAM(R) 2.4.0 and 2.4.x (commit b750988).

The patches are an attempt to build OpenFOAM with -Wall -Wextra -std=c++11 flags. The following appears after addition of the flags:

1. C++11 deprecates register storage class. So I have removed it, also flex generates code that put this keyword in several places: added sed pipe after flex code generation to remove it.
2. Lots of "unused parameter" warnings. Solved this problem commenting out names of the unused parameters, like: fvPatch& /* pp */.
3. Lots of "unused variable" warnings. These are due to love of developers to do thing like #include "readTimeControls.H" in the beginning of the solver, though not all created variables are used. Solved the problem by introducing readInitialTimeControls.H file and partially pruning unused chunks of code.
4. Quite a lot of hidden virtual functions warnings. These are due to mess in return types and method parameters (postProcessing/functionObjects library is an example of the problem). Solved by either declaring and implementing correct methods, or by "using Class::method" addition.
5. Tried to address constant reference dereferencing problem. Since it is not strictly defined behavior and, guess, results depend on compiler. So either added method returning pointer (since frequently OpenFOAM does this: const T& method() { return *ptr; } ... a = method(); if (&a) { ... }, in general if condition should always be true), or boolean returning function checking validity of the pointer.
6. Corrected loop condition in readKivaGrid.H, though since it is there from version 1.1 (according to Bruno Santos), guess ether this incorrect loop exit condition never lead to any problems, or nobody converts Kiva meshes.
7. Removed trailing white-space in several places.
8. Added of240 and of24x environment setup functions to openfoam-env-setup.sh.
9. From now on, patches for git version will contain commit SHA for which they were created.

As usual, build was tested on:

alexey at daphne in ~$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.3
BuildVersion:	14D136

with the following compiler

alexey at daphne in ~$ clang --version
Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
Target: x86_64-apple-darwin14.3.0
Thread model: posix

and with the following third party package versions:

boost 1.57.0
cgal 4.6
gmp 6.0.0a
metis 5.1.0
mpfr 3.1.2-p11
open-mpi 1.8.4_1
parmetis 4.0.3
parmgridgen 0.0.1
scotch 6.0.4_1

1. As versions 2.1.x and 2.2.x have rather funny memory allocation bug, I have only one laptop, and I do not use those versions, further support of patches for these versions is dropped.
2. Patches for 2.3.1 and 2.3.x (commit OpenFOAM/OpenFOAM-2.3.x@00eea57) include: - new printStack implementation (so there is no need in Python script for address resolution) - update of the code for new version of CGAL - corrections in METIS decomposition build logic - corrections in fvAgglomerationMethods build logic, so it can use Homebrew-installed ParMGridGen - corrections in sigFpe.C, so there is no more infinite loop in parallel run (due to print stack functionality in OpenMPI)
3. Initial foam-extend (commit ec44c9) patch attempt. Installation guide is in wiki.
4. Homebrew formulae for Mesquite and ParMGridGen.

Build was tested on

alexey at daphne in ~$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.3
BuildVersion:	14D136

With the following versions of third party packages

alexey at daphne in ~$ brew ls --versions
bison27 2.7.1
boost 1.57.0
cgal 4.6
gmp 6.0.0a
hwloc 1.9
libmpc 1.0.3
mesquite 2.1.2
metis 5.1.0
mpfr 3.1.2-p11
open-mpi 1.8.4
parmetis 4.0.3
parmgridgen 0.0.1
scotch 6.0.3

1. Updated OpenFOAM(TM) 2.3.1 patch for new version of Scotch.
2. Added patch to fix Scotch linking. Though patch was tested on 2.3.1, guess it will work on 2.3.0 and 2.2.x versions.

Added patch for OpenFOAM(TM) 2.3.1. Build was tested on:

myself at daphne in openfoam-os-x$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.10.1
BuildVersion:	14B25

myself at daphne in openfoam-os-x$ clang --version
Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin14.0.0
Thread model: posix