From b71dc48311f627b6491a3c11f7055adc5fcfbd3b Mon Sep 17 00:00:00 2001
From: Rick Rongen <rickrongen@outlook.com>
Date: Wed, 21 Sep 2022 22:03:01 +0200
Subject: [PATCH] feat: some cmake magic

---
 CMakeLists.txt | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6bd8578..3fea6af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,6 @@
 cmake_minimum_required(VERSION 3.15)
 project(new_kernel C ASM)
+set(CMAKE_C_STANDARD 99)
 
 # Define compiler run time
 SET(COMPILER_RT ${CMAKE_CURRENT_LIST_DIR}/compiler/target/bin)
@@ -7,24 +8,48 @@ SET(CMAKE_C_COMPILER ${COMPILER_RT}/i686-elf-gcc)
 SET(CMAKE_ASM_COMPILER ${COMPILER_RT}/i686-elf-gcc)
 
 # Optionally enable cmake debugging
-SET(CMAKE_VERBOSE_MAKEFILE ON)
+#SET(CMAKE_VERBOSE_MAKEFILE ON)
 
 # Set compile flags
 SET(CMAKE_C_FLAGS "-g -ffreestanding -Wall -Wextra -fno-exceptions -fstack-protector -fno-pie -m32")
 SET(CMAKE_ASM_FLAGS "${CFLAGS} -m32 -x assembler-with-cpp")
 SET(CMAKE_EXE_LINKER_FLAGS "-T${CMAKE_CURRENT_LIST_DIR}/linker.ld -nostdlib -lgcc")
 
-include_directories(AFTER include lai/include)
+# Include directory
+include_directories(AFTER include)
 
-set(CMAKE_C_STANDARD 99)
+################
+#   Features   #
+################
 
-FILE(GLOB lai lai/core/*.c lai/helpers/*.c lai/driver/*.c)
+set(ENABLE_ACPI ON CACHE BOOL "Enable ACPI Suppport")
+
+####################
+#   ACPI Feature   #
+####################
+if (ENABLE_ACPI)
+    include_directories(AFTER lai/include)
+    FILE(GLOB lai lai/core/*.c lai/helpers/*.c lai/driver/*.c)
+ELSE()
+    set(lai)
+endif ()
+
+# Other sourcees
 FILE(GLOB_RECURSE kernel_src kernel/**.c)
 FILE(GLOB_RECURSE kernel_asm kernel/**.S)
 FILE(GLOB_RECURSE boot_asm boot/boot.S)
 
 add_compile_definitions(__kernel__)
 
+#######################
+#   Kernel Features   #
+#######################
+
+# ACPI
+if (ENABLE_ACPI)
+    add_compile_definitions(ENABLE_ACPI)
+endif ()
+
 # Run IDE in DMA mode if available (NYI)
 #add_compile_definitions(IDE_ENABLE_INTERRUPT)
 # Kernel Command Line features