phoronix-test-suite-8.4.1 issues on CentOS 7.6 at least

[pjwelsh]

bzip2 is required for at least the pts/pgbench install but is not part of the initial dependency check/install (via yum) and should be.
pts/osbench does not compile and seems to require, 'export CFLAGS="-std=c99"' from the command line (and force-install). Error from log files show a bunch of:
error: 'for' loop initial declarations are only allowed in C99 mode

[pjwelsh]

Another CentOS dependency needed:
cmake3 #from EPEL repo
Also need to:
ln -s /usr/bin/cmake3 /usr/lib64/cmake3/cmake ; export PATH="/usr/lib64/cmake3:$PATH"
for at least the pts/build-llvm and pts/blogbench-1.0.1 tests.

There may be better way to handle the cmake3 install