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From: "craig.ringer at 2ndquadrant dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/25267] kernel 5.3: error: this statement may fall through [-Werror=implicit-fallthrough=]
Date: Tue, 10 Dec 2019 06:35:00 -0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25267

--- 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-wit=
h-this-statement-may-fall-through-werror-impl=20

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=3Dgnu99", s.translated_source, "-o", module,
       "-fvisibility=3Dhidden", "-O2", "-I" + s.runtime_path, "-D__DYNINST_=
_",
       "-Wall", WERROR, "-Wno-unused", "-Wno-strict-aliasing",
+      "-Wno-error=3Dimplicit-fallthrough", "-Wno-error=3Dstrict-prototypes=
",
       "-pthread", "-lrt", "-fPIC", "-shared",
     };

```

--=20
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