GitLab

- 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

- namespace prefix OTB_ added to most variables
- update to current versions
- exit with well defined codes on error
- compile Boost with -fPIC
- several configuration files added
- CMake script added which can be used to make the toolchain relocatable
- installation of profiles 'opal.sh' and 'otb_setup.sh'
- improved setup.sh