Squashed 'external/toxcore/c-toxcore/' changes from e29e185c03..f1df709b87

f1df709b87 feat: add ngc events
1b6c907235 refactor: Make event dispatch ordered by receive time.
b7f9367f6f test: Upgrade cppcheck, fix some warnings.
766e62bc89 chore: Use `pkg_search_module` directly in cmake.
00ff078f91 cleanup: Use target_link_libraries directly in cmake.
c58928cc89 chore: Add `IMPORTED_TARGET` to pkg-config packages.
895a6af122 cleanup: Remove NaCl support.
41dfb1c1c0 fix: unpack enum function names in event impl generator
447666d1a1 chore: Disable targets for cross-compilation.
572924e924 chore: Build a docker image with coverage info in it.
415cb78f5e cleanup: Some portability/warning fixes for Windows builds.
425216d9ec fix: Correct a use-after-free and fix some memory leaks.
4b1cfa3e08 refactor: Change all enum-like `#define` sequences into enums.
d3c2704fa9 chore: Fix make_single_file to support core-only.
0ce46b644e refactor: Change the `TCP_PACKET_*` defines into an enum.
22cd38ad50 adopt event impl generation tool to #2392
f31ea1088a add the event impl generation tool
4e603bb613 refactor: Use `enum-from-int` rule from tokstyle.
19d8f180d6 chore: Update github actions `uses`.
6a895be0c7 test: Make esp32 build actually try to instantiate tox.
65d09c9bfb cleanup: Remove test net support.
REVERT: e29e185c03 feat: add ngc events

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: f1df709b8792da4c0e946d826b11df77d565064d

.github/scripts/autotools-linux

@@ -11,10 +11,7 @@ add_ld_flag -Wl,-z,defs
 # Make compilation error on a warning
 add_flag -Werror
 
-add_config_flag --with-nacl-libs="$CACHEDIR/lib/amd64"
-add_config_flag --with-nacl-headers="$CACHEDIR/include/amd64"
 add_config_flag --disable-ipv6
-add_config_flag --enable-nacl
 add_config_flag --enable-daemon
 add_config_flag --with-log-level=TRACE
 

.github/scripts/flags-clang.sh

@@ -65,6 +65,8 @@ add_cxx_flag -Wno-c++98-compat-pedantic
 add_cxx_flag -Wno-c99-extensions
 # We're C-compatible, so use C style casts.
 add_cxx_flag -Wno-old-style-cast
+# GTest does this.
+add_cxx_flag -Wno-global-constructors
 
 # Downgrade to warning so we still see it.
 add_flag -Wno-error=unreachable-code

.github/scripts/flags-coverage.sh

@@ -14,7 +14,7 @@ add_flag --coverage
 add_c_flag -fno-inline -fno-omit-frame-pointer
 
 # Show useful stack traces on crash.
-add_flag -fsanitize=undefined -fno-sanitize-recover=all
+add_flag -fsanitize=undefined -fno-sanitize-recover=all -D_DEBUG
 
 # In test code (_test.cc and libgtest), throw away all debug information.
 # We only care about stack frames inside toxcore (which is C). Without this,