Errors in sections while running Makefile on MacOS - macos

Question

I've got some Errors while running the Makefile. I am currently using MacOS Mojave, and got some weird errors and I am not able to understand them. The Makefile hadn't work at all, there was an error in ASPARAMS = -m32 (before that it was ASPARAMS= --32 {didn't work}. Now the Makefile has no errors but a other file does. Here is the code of the Makefile:
GPPPARAMS = -m32 -fno-use-cxa-atexit -nostdlib -fno-builtin -fno-rtti -fno-exceptions -fno-leading-underscore
ASPARAMS = -m32
LDPARAMS = -melf_i386
objects = loader.o kernel.o
%.o: %.cpp
g++ $(GPPPARAMS) -o $# -c $<
%.o: %.s
as $(ASPARAMS) -o $# $<
mykernel.bin: linker.ld $(objects)
ld $(LDPARAMS) -T $< -o $# $(objects)
install: mykernel.bin
sudo cp $< /boot/mykernel.bin
mykernel.iso: mykernel.bin
mkdir iso
mkdir iso/boot
mkdir iso/boot/grub
cp $< iso/boot/
echo 'set timeout-0' >> iso/boot/grub/grub.cfg
echo 'set default-0' >> iso/boot/grub/grub.cfg
echo 'menuentry "My Operating System"{' >> iso/boot/grub/grub.cfg
echo ' multiboot /boot/mykernel.bin' >> iso/boot/grub/grub.cfg
echo ' boot' >> iso/boot/grub/grub.cfg
echo '}' >> iso/boot/grub/grub.cfg
grub-mkrescue --output=$# iso
rm -rf iso
run: mykernel.iso
(killall VirtualBox && sleep 1) || true
VirtualBox --startvm "My Operating System" &
Here are the errors:
loader.s:5:20: error: unexpected token in '.section' directive
.section .multiboot
^
loader.s:12:15: error: unexpected token in '.section' directive
.section .text
^
loader.s:29:15: error: unexpected token in '.section' directive
.section .bss
^
make: *** [loader.o] Error 1
And here is the file were the errors appear:
.set MAGIC, 0x1badb002
.set FLAGS, (1<<0 | 1<<1)
.set CHECKSUM, -(MAGIC + FLAGS)
.section .multiboot
.long MAGIC
.long FLAGS
.long CHECKSUM
.section .text
.extern kernelMain
.extern callConstructors
.global loader
loader:
mov $kernel_stack, %esp
call callConstructors
push %eax
push %ebx
call kernelMain
_stop:
cli
hlt
jmp _stop
.section .bss
.space 2*1024*1024;
kernel_stack: