[buildcore] Map aarch64 to arm64 in util.get_arch

deps/buildcore/scripts/util.py

@@ -35,4 +35,6 @@ def get_arch() -> str:
     arch = platform.machine().lower()
     if arch == 'amd64':
         arch = 'x86_64'
+    elif arch == 'aarch64':
+        arch = 'arm64'
     return arch

deps/ox/src/ox/std/reader.cpp

@@ -32,7 +32,7 @@ ox::Result<char> StreamReader::peek() const noexcept {
 	try {
 		char c{};
 		m_strm.get(c);
-		auto const ok = c != EOF;
+		auto const ok = c != static_cast<char>(EOF);
 		if (ok && m_strm.unget()) [[unlikely]] {
 			return ox::Error(1, "Unable to unget character");
 		}