Building make files

red_hax0r · 06-27-2006, 04:29 PM

Whaat is the simplist makefile I can design to compile a single gtk program?

Here's what I have...

hello: hello.c
gcc hello.c -o hello

It gives me an error:

makefile:2: *** missing separator. Stop.

nadroj · 06-27-2006, 04:32 PM

try putting a tab on the second line... or any line that starts with gcc.

tuxdev · 06-27-2006, 04:53 PM

As nadroj said, every action needs to start with a tab for histerical raisons.
Another good idea is to take advantage of make's implicit rules.

Code:

CC = gcc
CFLAGS = -g -Wall
hello:

make will compile the program using CC and with CFLAGS, which are to compile with debug info and turn on all warnings.

Hko · 06-28-2006, 04:54 AM

Here's a simple 'Makefile' to compile and link the 'helloworld.c' exmaple from the GTK2 tutorial:

Code:

CC = gcc
CFLAGS = -g -Wall `pkg-config --cflags gtk+-2.0`
LIBS =  `pkg-config --libs gtk+-2.0`

helloworld: helloworld.o
	$(CC) $(LIBS) -o helloworld helloworld.o

helloworld.o: helloworld.c
	$(CC) $(CFLAGS) -c -o helloworld.o helloworld.c

Please note that, as nadroj and tuxdev already pointed out, the empty spaces in front of the lines that begin with "$(CC)" must be TABS.