I discovered the static keyword

CMakeLists.txt

@@ -1,5 +1,12 @@
 cmake_minimum_required(VERSION 3.10)
 
+if(NOT CMAKE_BUILD_TYPE)
+	set(CMAKE_BUILD_TYPE Release)
+endif()
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -pedantic -Werror -fsanitize=address")
+set(CMAKE_CXX_FLAGS_DEBUG "-g")
+set(CMAKE_CXX_FLAGS_RELEASE "-O2")
 
 # generate the compile_commands for vscode / clang
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
@@ -24,8 +31,6 @@ set(SOURCES
 # add the executable
 add_executable(ModManager src/main.c ${SOURCES})
 
-add_compile_options(-Wall -Wextra -pedantic -Werror)
-
 find_package(PkgConfig REQUIRED)
 pkg_search_module(GLIB REQUIRED glib-2.0)
 pkg_search_module(AUDIT REQUIRED audit)
@@ -33,7 +38,6 @@ pkg_search_module(LIBXML REQUIRED libxml-2.0)
 
 target_include_directories(ModManager PRIVATE ${GLIB_INCLUDE_DIRS} ${LIBXML_INCLUDE_DIRS} ${AUDIT_INCLUDE_DIRS})
 
-add_compile_options(-fsanitize=address)
 add_link_options(-fsanitize=address)
 
 target_link_libraries(ModManager ${GLIB_LDFLAGS})