makefile : missing separator

Question

#kernel build system and can use its lanauge
ifneq($(KERNELRELEASE),)
 obj-m:=helloworld.o
else
 KDIR:= /lib/modules/2.6.33.3-85.fc13.i686/build
all:
 make -C $(KDIR) M=         


        

Answer 1

Check before obj-m: and KDIR: etc. Are your tabs being inserted as spaces?

Answer 2

You're missing the second part of your conditional ifneq($(KERNELRELEASE),) needs to have something after the comma, like "2.6.17" (for example).

Answer 3

There must be a space between ifneq and (.

The TAB prefix means that it is a shell command, so be sure that the shell commands (make and rm) begin with TAB, and all other lines such as ifneq do not begin with TAB.

Answer 4

Make is complaining that the second line doesn't start with a tab. Your IDE/texteditor may be saving the file using spaces as equivalent to a tab character. Either configure the IDE to use the tab character, or use a simple editor like vim or nano and replace the leading white space on the second line with a tab.