Update

GNUmakefile

@@ -3,6 +3,20 @@ override MAKEFLAGS += -rR
 
 override IMAGE_NAME := barebones
 
+# Convenience macro to reliably declare user overridable variables.
+define DEFAULT_VAR =
+    ifeq ($(origin $1),default)
+        override $(1) := $(2)
+    endif
+    ifeq ($(origin $1),undefined)
+        override $(1) := $(2)
+    endif
+endef
+
+# Compiler for building the 'limine' executable for the host.
+override DEFAULT_HOST_CC := cc
+$(eval $(call DEFAULT_VAR,HOST_CC,$(DEFAULT_HOST_CC)))
+
 .PHONY: all
 all: $(IMAGE_NAME).iso
 
@@ -31,7 +45,7 @@ ovmf:
 
 limine:
 	git clone https://github.com/limine-bootloader/limine.git --branch=v5.x-branch-binary --depth=1
-	$(MAKE) -C limine
+	$(MAKE) -C limine CC="$(HOST_CC)"
 
 .PHONY: kernel
 kernel:
@@ -40,10 +54,11 @@ kernel:
 $(IMAGE_NAME).iso: limine kernel
 	rm -rf iso_root
 	mkdir -p iso_root
-	cp kernel/kernel.elf \
+	cp -v kernel/kernel.elf \
 		limine.cfg limine/limine-bios.sys limine/limine-bios-cd.bin limine/limine-uefi-cd.bin iso_root/
 	mkdir -p iso_root/EFI/BOOT
-	cp limine/BOOT*.EFI iso_root/EFI/BOOT/
+	cp -v limine/BOOTX64.EFI iso_root/EFI/BOOT/
+	cp -v limine/BOOTIA32.EFI iso_root/EFI/BOOT/
 	xorriso -as mkisofs -b limine-bios-cd.bin \
 		-no-emul-boot -boot-load-size 4 -boot-info-table \
 		--efi-boot limine-uefi-cd.bin \
@@ -65,7 +80,8 @@ $(IMAGE_NAME).hdd: limine kernel
 	sudo mount `cat loopback_dev`p1 img_mount
 	sudo mkdir -p img_mount/EFI/BOOT
 	sudo cp -v kernel/kernel.elf limine.cfg limine/limine-bios.sys img_mount/
-	sudo cp -v limine/BOOT*.EFI img_mount/EFI/BOOT/
+	sudo cp -v limine/BOOTX64.EFI img_mount/EFI/BOOT/
+	sudo cp -v limine/BOOTIA32.EFI img_mount/EFI/BOOT/
 	sync
 	sudo umount img_mount
 	sudo losetup -d `cat loopback_dev`