diff --git a/CMakeLists.txt b/CMakeLists.txt
index 716cd83..dddfb22 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.30)
+cmake_minimum_required(VERSION 3.23)
 project(pslang CXX)
 
 set(CMAKE_CXX_STANDARD 23)
diff --git a/libs/parser/CMakeLists.txt b/libs/parser/CMakeLists.txt
index 4050593..4649615 100644
--- a/libs/parser/CMakeLists.txt
+++ b/libs/parser/CMakeLists.txt
@@ -10,6 +10,8 @@ set(PSLANG_LEXER_SOURCE_FILE "${CMAKE_CURRENT_BINARY_DIR}/generated/gen_lexer.cp
 set(PSLANG_PARSER_HEADER_FILE "${CMAKE_CURRENT_BINARY_DIR}/generated/gen_parser.hpp")
 set(PSLANG_PARSER_SOURCE_FILE "${CMAKE_CURRENT_BINARY_DIR}/generated/gen_parser.cpp")
 
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
 flex_target(
 	generate-pslang-lexer
 	${PSLANG_LEXER_RULES_FILE}
diff --git a/libs/parser/rules/pslang.y b/libs/parser/rules/pslang.y
index 856c725..fd4641b 100644
--- a/libs/parser/rules/pslang.y
+++ b/libs/parser/rules/pslang.y
@@ -47,9 +47,13 @@ template <typename T>
 ::pslang::ast::literal parse_primitive_literal(std::string const & str, ::pslang::ast::location const & location)
 {
 	T value;
+#ifdef __clang__
+	value = std::strtoll(str.data(), nullptr, 10);
+#else
 	auto result = std::from_chars(str.data(), str.data() + str.size(), value);
 	if (result.ec != std::errc())
 		throw std::system_error(std::make_error_code(result.ec));
+#endif
 	return ::pslang::ast::primitive_literal_base<T>{value, location};
 }
 
@@ -101,7 +105,7 @@ template <typename T>
 %token <std::string> lit_f32
 %token <std::string> lit_f64
 
-%token <char> lit_char8
+%token <std::uint8_t> lit_char8
 
 %token <std::string> name