This is my makefile:
all:ll
ll:ll.c
gcc -c -Wall -Werror -02 c.c ll.c -o ll $@ $<
clean :
\rm -fr ll
When I try to make clean
or make make
, I get this error:
:makefile:4: *** missing separator. Stop.
How can I fix it?
make has a very stupid relationship with tabs. All actions of every rule are identified by tabs. And, no, four spaces don't make a tab. Only a tab makes a tab.
To check, I use the command cat -e -t -v makefile_name
.
It shows the presence of tabs with ^I
and line endings with $
. Both are vital to ensure that dependencies end properly and tabs mark the action for the rules so that they are easily identifiable to the make utility.
Example:
Kaizen ~/so_test $ cat -e -t -v mk.t
all:ll$ ## here the $ is end of line ...
$
ll:ll.c $
^Igcc -c -Wall -Werror -02 c.c ll.c -o ll $@ $<$
## the ^I above means a tab was there before the action part, so this line is ok .
$
clean :$
\rm -fr ll$
## see here there is no ^I which means , tab is not present ....
## in this case you need to open the file again and edit/ensure a tab
## starts the action part