We have some tests where the gmime 3 behaviour seems like a bug fix,
others where it's less clear, so we allow both possibilities.
     have_gmime=1
     gmime_cflags=$(pkg-config --cflags gmime-3.0)
     gmime_ldflags=$(pkg-config --libs gmime-3.0)
+    gmime_major=3
 elif pkg-config --exists "gmime-2.6 >= $GMIME_MINVER"; then
     printf "Yes (2.6).\n"
     have_gmime=1
     gmime_cflags=$(pkg-config --cflags gmime-2.6)
     gmime_ldflags=$(pkg-config --libs gmime-2.6)
+    gmime_major=2
 else
     have_gmime=0
     printf "No.\n"
 # building/testing ruby bindings.
 NOTMUCH_HAVE_RUBY_DEV=${have_ruby_dev}
 
+# Major version of gmime
+NOTMUCH_GMIME_MAJOR=${gmime_major}
+
 # Platform we are run on
 PLATFORM=${platform}
 EOF
 
 
 . ./test-lib-common.sh || exit 1
 
+if [ "${NOTMUCH_GMIME_MAJOR}" = 3 ]; then
+    test_subtest_broken_gmime_3 () {
+       test_subtest_known_broken
+    }
+    test_subtest_broken_gmime_2 () {
+       true
+    }
+else
+    test_subtest_broken_gmime_3 () {
+       true
+    }
+    test_subtest_broken_gmime_2 () {
+       test_subtest_known_broken
+    }
+fi
+
 emacs_generate_script