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echo Now assembling, compiling, and linking your kernel:
nasmw -f aout -o start.o start.asm
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o main.o main.c 
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o str.o str.c 
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o mem.o mem.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o port.o port.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o scrn.o scrn.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o gdt.o gdt.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o idt.o idt.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o isrs.o isrs.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o irq.o irq.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o timer.o timer.c
gcc -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include -c -o kb.o kb.c

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# This includes the default (the one from the FAQ) crosscompiler path
export PATH=$PATH:/usr/cross/bin

# NASM example
nasm -f elf -o start.o start.asm

#GCC example (these are my options, dunno if they're correct, but they work ;) )
i386-elf-gcc -Wall -Werror -O3 -fno-builtin -I./include -c -o main.o main.c

# LD (I put /everything/ in my linker script, input files, output file/format, etc.)
# I hope you got your linker script, if not, I'd head for some of the BareBones tutorials in the Wiki
# The ld manual is also a must if you want to do more advanced stuff with your linker
i386-elf-ld -T link.ld

#I think bkerndev has something like this
rm *.o

# You can add many more things, such as copying your kernel to the floppy drive, start Bochs, etc.

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nasmw -f elf -o start.o start.asm

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SECTIONS
{
    . = 0x00100000;

    .text :
    {
        *(.text)
    }

    .rodata ALIGN (0x1000) :
    {
        *(.rodata)
    }

    .data ALIGN (0x1000) :
    {
        *(.data)
    }

    .bss :
    {
        _sbss = .;
        *(COMMON)
        *(.bss)
        _ebss = .;
    }
}

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# set the tools to be used
CC := i386-elf-gcc
LD := i386-elf-ld

# set the C compiler flags
CFLAGS :=  -Wall -O -fstrength-reduce -fomit-frame-pointer -finline-functions -nostdinc -fno-builtin -I./include

# Modify these to "catch" different sets of files
# All C sources
CFILES := $(shell find . -name "*\.c")
# All ASM sources
ASMFILES := $(shell find . -name "*\.asm")
# All sources, regardless language
SRCFILES := $(CFILES) $(ASMFILES)
# All object files contributing to kernel.bin
OBJFILES := $(patsubst %.c,%.o,$(SRCFILES))
# Header dependencies for C files
DEPFILES := $(patsubst %.c,%.d,$(CFILES))

# Necessary so that cleaning is done even if a file "clean" should exist
.PHONY: clean

# First "rule" in a makefile is the default one, so you could just "make" instead of "make kernel.bin".
kernel.bin: ${OBJFILES} link.ld
        @$(LD) -T link.ld -o kernel.bin ${OBJFILES}

# This doesn't throw error messages if files do not exist
clean:
        -@for file in $(OBJFILES) $(DEPFILES); do if [ -f $$file ]; then rm $$file; fi; done

# Including the header dependency files (which contain make rules autogenerated by GCC below)
-include $(DEPFILES)

%.o: %.asm
        @nasmw -f elf -o $@ $<

# The -M* options auto-generate the dependency options
%.o: %.c
        @$(CC) -MMD -MP -MT "$*.d" -c $< -o $@

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OUTPUT_FORMAT(elf32-i386)