Squashed 'external/toxcore/c-toxcore/' changes from adbd5b32d8..e29e185c03

e29e185c03 feat: add ngc events
2b0dc0f46b add ngc related unpack functions
b2315c50e0 Add groupchat API function that returns an IP address string for a peer
5f863a5492 feat: Add `to_string` functions for all public enums.
0c998a7598 add real timeout test
68c827609a chore: Move s390x build to post-merge.
028b017d79 perf: Slightly reduce bandwidth usage when there are few nodes.
90f7496819 feat: Enable ubsan on bootstrap nodes.
89b6450d66 test: Add check-c run to bazel build.
REVERT: adbd5b32d8 feat: add ngc events

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: e29e185c03fea7337036e5ef4d1d9080a6cee721

testing/BUILD.bazel

@@ -22,6 +22,28 @@ sh_test(
     tags = ["haskell"],
 )
 
+sh_test(
+    name = "c_test",
+    size = "small",
+    srcs = ["//hs-tokstyle/tools:check-c"],
+    args = [
+        "--cc=$(CC)",
+        "-Iexternal/libsodium/include",
+        "-Iexternal/libvpx",
+        "-Iexternal/opus/include",
+        "-Ihs-tokstyle/include",
+    ] + ["$(locations %s)" % f for f in CIMPLE_FILES],
+    data = CIMPLE_FILES + [
+        "//c-toxcore/third_party:headers",
+        "//hs-tokstyle:headers",
+        "@libsodium//:headers",
+        "@libvpx//:headers",
+        "@opus//:headers",
+    ],
+    tags = ["haskell"],
+    toolchains = ["@rules_cc//cc:current_cc_toolchain"],
+)
+
 sh_test(
     name = "cimplefmt_test",
     size = "small",