M4 tests fail when built with PGI compilers

[Stewart, Adam James]

I'm trying to build and install M4 1.4.18 with PGI 16.5, but `make check` crashes for me. I'm seeing thousands of lines that look like:

PGC-W-0116-Constant value out of range for signed short or char (/blues/gpfs/home/software/spack-0.10.0/var/spack/stage/m4-1.4.18-zwtcbe4z66lx36aq7iuwsqbmz35a76jp/m4-1.4.18/tests/test-intprops.c: 164)
PGC-W-0155-64-bit integral value truncated  (/blues/gpfs/home/software/spack-0.10.0/var/spack/stage/m4-1.4.18-zwtcbe4z66lx36aq7iuwsqbmz35a76jp/m4-1.4.18/tests/test-intprops.c: 164)
PGC-W-0155-Integer overflow in divide  (/blues/gpfs/home/software/spack-0.10.0/var/spack/stage/m4-1.4.18-zwtcbe4z66lx36aq7iuwsqbmz35a76jp/m4-1.4.18/tests/test-intprops.c: 292)
PGC-W-0086-Division by zero (/blues/gpfs/home/software/spack-0.10.0/var/spack/stage/m4-1.4.18-zwtcbe4z66lx36aq7iuwsqbmz35a76jp/m4-1.4.18/tests/test-intprops.c: 337)

I don't think test-intprops.c is compatible with the PGI compilers.

Adam J. Stewart

Assistant Systems Administrator

Laboratory Computing Resource Center

Computing, Environment and Life Sciences

Argonne National Laboratory