[Bug runtime/25267] kernel 5.3: error: this statement may fall through [-Werror=implicit-fallthrough=]

[craig.ringer at 2ndquadrant dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25267

--- Comment #1 from Craig Ringer <craig.ringer at 2ndquadrant dot com> ---
I wrote this up earlier as
https://stackoverflow.com/questions/58443706/systemtap-stap-probes-fail-with-this-statement-may-fall-through-werror-impl 

Cross linked there.

Workaround:

```
diff --git a/buildrun.cxx b/buildrun.cxx
index 505902bc5..b29eeb797 100644
--- a/buildrun.cxx
+++ b/buildrun.cxx
@@ -235,6 +235,7 @@ compile_dyninst (systemtap_session& s)
       "gcc", "--std=gnu99", s.translated_source, "-o", module,
       "-fvisibility=hidden", "-O2", "-I" + s.runtime_path, "-D__DYNINST__",
       "-Wall", WERROR, "-Wno-unused", "-Wno-strict-aliasing",
+      "-Wno-error=implicit-fallthrough", "-Wno-error=strict-prototypes",
       "-pthread", "-lrt", "-fPIC", "-shared",
     };

```

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