diff --git a/rpminspect.yaml b/rpminspect.yaml
index edc369a..bb76e14 100644
--- a/rpminspect.yaml
+++ b/rpminspect.yaml
@@ -5,6 +5,15 @@ inspections:
   emptyrpm: off
   # We patch upstream a lot, no need to reject patches
   patches: off
+badfuncs:
+  allowed:
+    # The Mono runtime (used on s390x, for example), uses inet_addr for
+    # debugging (such as sending the control flow graph to a remote process).
+    # See runtime/src/mono/mono/mini/cfgdump.c.  This isn't part of any
+    # standard networking facility; networking APIs are implemneted/used in
+    # libSystem*so.
+    /usr/lib64/dotnet/shared/Microsoft.NETCore.App/*/libcoreclr.so:
+    - inet_addr
 runpath:
   # Upstream explicitly sets $ORIGIN/netcoredeps as an RPATH
   # See https://github.com/dotnet/core/blob/main/Documentation/self-contained-linux-apps.md
diff --git a/tests/tests.yml b/tests/tests.yml
index ac6735c..ef5bbeb 100644
--- a/tests/tests.yml
+++ b/tests/tests.yml
@@ -28,8 +28,10 @@
     - dotnet-runtime-7.0
     - expect
     - file
+    - gcc
     - git
     - jq
+    - libstdc++
     - lldb
     - npm
     - python3