[Bug target/70123] [5 Regression] Miscompilation of cfitsio testcase on s390x-linux starting with r222144

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70123

--- Comment #8 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
I'll take your comment as approval and install on gcc-5 as well.