GitLab

- CMake 3.20.5 -> 3.21.5
- GMP 6.2.0 -> 6.2.1
- mpfr 4.0.2 -> 4.1.0
- mpc 1.1.0 -> 1.2.1
- GCC 8.4.0 -> 10.3.0
- Trilinos master -> 13.0.1

- set C++ standard to 14
- treat implicit function declarations as warning not error
  (this is required for Clang 12!)

- the key must not be (single-)quoted otherwise this doesn't
  work with ZSH

- fixed bug in setting the various paths
- unset OTB_RECIPES and OTB_SYMLINKS if sourced multiple times and
  not used any more
- code cleanup

- doesn't compile with GCC without patches on macOS, so Clang must be
  used
- compile with --no-system-libs and parallel

if not forced cmake uses clang on macOS even if cc is GCC

- install libLLVM and libgfortran.spec

- export OTB_TOOLSET even if already defined
- error in setting OPAL_PREFIX fixed
- LD_LIBRARY_PATH is required to run opal if compiled in tool-chain

- use one-liner to define __mydir, using nested quoting
- define and use a variable __os instead of uname -s
- do not export DYLD_LIBRARY_PATH on macOS/Darwin
- otb_setup.sh and opal.sh merged
- do not export LD_LIBRARY_PATH on macOS/Darwin in the binary package

- make CMake file relocatable
- patch file with hardcoded prefixes
- cp some shared library to packe which might not be installed on th
  target system.
- strip binaries

- fix example call
- match and replace ${PREFIX} independent of a following slash

- definition of PKG_CONFIG_PATH added
- handling of Ubuntu specific library path added
- define DYLD_LIBRARY_PATH on macOS
- set OPAL_PREFIX, required to make OpenMPI relocatable