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COMP: add rpath information to MacOS compilation rules (#2948)

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- since the Apple SIP (System Integrity Protection) clears environment
  variables such as DYLD_LIBRARY_PATH, a number of workarounds have
  been used to provide shadow values. However, for a more robust
  installation using -rpath at compilation time appears to be the
  better solution.

  In addition to the usual -rpath specification with absolute file
  paths, MacOS supports (@loader_path, @executable_path) as well.
  Now default to link with rpath information for MacOS, which can be
  disabled by adding `~rpath` in WM_COMPILE_CONTROL

  Explicit library paths handled:
    - FOAM_FOAM_EXT_LIBBIN, FOAM_EXT_LIBBIN/FOAM_MPI

  The executable rpaths are handled assuming a structure of
     install-path/bin
     install-path/lib/$(FOAM_MPI)
     install-path/lib

  Absolute compile-time paths for FOAM_USER_LIBBIN, FOAM_SITE_LIBBIN
  and FOAM_LIBBIN are not handled since these are either too fragile
  (FOAM_USER_LIBBIN and FOAM_SITE_LIBBIN values) or covered via
  @loader_path anyhow (FOAM_LIBBIN).

  Since the value of FOAM_MPI is a compile-time value, this rpath
  treatment makes the installation less suitable for runtime changes
  to the MPI vendor/version.

  Note: no rpath added for c-only compilations since there are
  currently no c-only libraries or executables with dynamic loading
This commit is contained in:
Alexey Matveichev
2023-07-26 18:06:24 +02:00
committed by Mark Olesen
parent 3630333526
commit e4f2efec18
6 changed files with 67 additions and 5 deletions
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3
etc/bashrc
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@ -6,7 +6,7 @@
# \\/ M anipulation |
#------------------------------------------------------------------------------
# Copyright (C) 2011-2016 OpenFOAM Foundation
# Copyright (C) 2016-2022 OpenCFD Ltd.
# Copyright (C) 2016-2023 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
@ -87,6 +87,7 @@ export WM_COMPILE_OPTION=Opt
# +lld : with lld linker (with clang)
# +mold : with mold linker (with clang)
# ~libz : without libz compression
# ~rpath : without rpath handling [MacOS]
# +openmp : with openmp
# ~openmp : without openmp
# +ccache : use ccache