Reduce compiler warnings for -Wall -Wpedantic -Wextra

CMakeLists.txt

@@ -19,12 +19,12 @@ add_executable(${PROJECT_NAME})
 # Add key executable block
 target_sources(${PROJECT_NAME} PUBLIC
     ${CMAKE_CURRENT_LIST_DIR}/dev/main.c
-    )
+)
 
 # Add key include paths
 target_include_directories(${PROJECT_NAME} PUBLIC
     ${CMAKE_CURRENT_LIST_DIR}/dev
-    )
+)
 
 # Compilation definition information
 target_compile_definitions(${PROJECT_NAME} PUBLIC
@@ -32,7 +32,14 @@ target_compile_definitions(${PROJECT_NAME} PUBLIC
     _DEBUG
     CONSOLE
     LWSHELL_DEV
-    )
+)
+
+# Compiler options
+target_compile_options(${PROJECT_NAME} PRIVATE
+    -Wall
+    -Wextra
+    -Wpedantic
+)
 
 # Add subdir with lwshell and link to project
 add_subdirectory("lwshell" lwshell)

dev/main.c

@@ -78,6 +78,7 @@ subdbl_cmd(int32_t argc, char** argv) {
  */
 void
 shell_output(const char* str, lwshell_t* lw) {
+    (void)lw;
     printf("%s", str);
     if (*str == '\r') {
         printf("\n");