From a294dd3cedf8753a7566a078b8310cd6e0f86e31 Mon Sep 17 00:00:00 2001
From: mintsuki <mintsuki@protonmail.com>
Date: Wed, 22 Dec 2021 01:44:33 +0100
Subject: [PATCH] build: Improve clang detection code

---
 Makefile              |  8 ++++----
 decompressor/Makefile |  4 ++++
 stage23/Makefile      | 12 ++++++++++++
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 46b2ea79..07e0c582 100644
--- a/Makefile
+++ b/Makefile
@@ -32,12 +32,8 @@ ifeq ($(shell PATH='$(call SHESCAPE,$(PATH))' command -v $(TOOLCHAIN_CC) ; ), )
 override TOOLCHAIN_CC := cc
 endif
 
-ifeq ($(TOOLCHAIN_CC), clang)
-TOOLCHAIN_CC += --target=x86_64-elf
 ifeq ($(TOOLCHAIN_CC), clang)
 override TOOLCHAIN_CC += --target=x86_64-elf
-MAKEOVERRIDES += TOOLCHAIN_CC+=--target=x86_64-elf
-endif
 endif
 
 override CC_MACHINE := $(shell PATH='$(call SHESCAPE,$(PATH))' $(TOOLCHAIN_CC) -dumpmachine | dd bs=6 count=1 2>/dev/null)
@@ -54,6 +50,10 @@ endif
 endif
 endif
 
+ifeq ($(TOOLCHAIN_CC), clang --target=x86_64-elf)
+override TOOLCHAIN_CC := clang
+endif
+
 override STAGE1_FILES := $(shell find -L ./stage1 -type f -name '*.asm')
 
 .PHONY: all
diff --git a/decompressor/Makefile b/decompressor/Makefile
index 3ff3defd..6a18f4c9 100644
--- a/decompressor/Makefile
+++ b/decompressor/Makefile
@@ -30,6 +30,10 @@ ifeq ($(shell command -v $(TOOLCHAIN_OBJCOPY) ; ), )
 override TOOLCHAIN_OBJCOPY := objcopy
 endif
 
+ifeq ($(TOOLCHAIN_CC), clang)
+override TOOLCHAIN_CC += --target=i686-elf
+endif
+
 WERROR = -Werror
 CFLAGS ?= -Os -pipe -Wall -Wextra $(WERROR)
 
diff --git a/stage23/Makefile b/stage23/Makefile
index 531b4108..c46e0ec1 100644
--- a/stage23/Makefile
+++ b/stage23/Makefile
@@ -55,6 +55,18 @@ ifeq ($(shell command -v $(TOOLCHAIN_READELF) ; ), )
 override TOOLCHAIN_READELF := readelf
 endif
 
+ifeq ($(TOOLCHAIN_CC), clang)
+ifeq ($(TARGET), bios)
+override TOOLCHAIN_CC += --target=i686-elf
+endif
+ifeq ($(TARGET), uefi)
+override TOOLCHAIN_CC += --target=x86_64-elf
+endif
+ifeq ($(TARGET), uefi32)
+override TOOLCHAIN_CC += --target=i686-elf
+endif
+endif
+
 COM_OUTPUT = false
 E9_OUTPUT = false