https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88133
Bug ID: 88133
Summary: [9 Regression] Build fails with host GCC < 4.3
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
Those do not grok
bitmap.o-warn = -Wno-error=array-bounds # PR 87926
in reload1.c we seem to use #pragma GCC diagnostic so maybe we can
just guard appropriate pieces of bitmap.c? Not sure if the
diagnostic support works for warnings emitted by optimization passes.
Note that GCC 4.2 and earlier do not know -Warray-bounds and error
for unknown warning options.
Not sure what other host comilers do, at least I didn't see any
report yet for the other -Wno- pieces we use.
