The cmake was ignoring the cmd obtained with `find_program` and
instead directly using `distcc`/`icecc`. This fixes the issue.

This partially reverts commit 25f3f90d.

This partially reverts commit 43cb405f.

Attila Krasznahorkay authored Jun 04, 2019 and Marco Clemencic committed Jun 04, 2019

To allow the usage of hand-built ROOT versions, ones that were not
built against LibLZMA.

Closes #76

Charles Leggett authored Jun 25, 2019 and Marco Clemencic committed Jun 25, 2019

This reverts merge requests !869 and !932

A variable hook `GENREFLEX_JOB_POOL` is added,
that allows limiting the parallelization of genreflex commands
independently of the default parallelism when using ninja.
See the ninja [manual](https://ninja-build.org/manual.html#ref_pool)
for more details on job pools. This is especially needed
when distributing the compilation as the number of jobs is very high
and trying too many genreflex calls locally can use up the memory.

The new variable can be set from the toolchain or the pre-loaded initial
cache.

see #73

absorb in the check the small changes that may happend in the order of lines.

Closes #71

Use the AlgContext  guard constructor without EventContext for single thread

Closes #73 and #72

See merge request gaudi/Gaudi!937

observed in debug builds with gcc 8.2, probably caused (I guess) by
symbols that get emitted and confuse the compiler

- Update Gaudi version to v32r1 and LCG to 96
- Update change log