makefile : understing make

kickzha · 06-17-2006, 04:26 PM

Hello,

again as beginner i have a problem, see that makefile if interested in helping me:

Code:

#Makefile

NAME = exe

INCLUDE = `pkg-config --cflags gtk+-2.0` `pkg-config --cflags gtksourceview-1.0` `pkg-config --cflags gnome-vfs-2.0`

LIBS = `pkg-config --libs gtk+-2.0` `pkg-config --libs gtksourceview-1.0` `pkg-config --libs gnome-vfs-2.0`

OBJECTS = codeview     # could work as an array and for each??

${OBJECT}.o:
	gcc -g -c -o obj/${OBJECT}.o ${INCLUDE} ${OBJECT}/${OBJECT}.c

TARGET = $(${TARGET} obj/${OBJECT}.o)

all:	${OBJECTS}
	gcc -g -o ${NAME} ${INCLUDE} ${LIBS} main.c obj/${OBJECTS}.o

...as it may be seen, i try a 'general' makefile, wherein i best just have to add the a name to OBJECTS if i add a module, and better than this i may but the name in a file wherefrom make it would read.

Implementable by the GNU make ??

thx
chab

btmiller · 06-17-2006, 04:54 PM

If I understand your question correctly (and I'm not sure if I do), then you can just add any additional modules you want to compile to the "OBJECTS =" line to get them to compile. However, the one problem I see is that the gcc command in the all target doesn't seem to be set up properly to handle multiple .o files (look at the macro -- it won't expand the way you want it).

Usually I specify the full name of object files, e.g.

OBJECTS = foo.o bar.o spam.o

And then use a target like the following to compile them:

.c.o:
gcc -c $<

The I add a separate line in the target to link them all together. You could add something to the gcc line above to make it dump all of the objects into a special obj directory if you like,

Hope this helps.

kickzha · 06-17-2006, 05:01 PM

Quote:

Originally Posted by btmiller

If I understand your question correctly (and I'm not sure if I do)

u did

Quote:

Originally Posted by btmiller

OBJECTS = foo.o bar.o spam.o

And then use a target like the following to compile them:

.c.o:
gcc -c $<

...ok, understood.

Thank you.

chab

kickzha · 06-18-2006, 05:35 PM

Code:

#Makefile

NAME = exe

all:	${NAME}

INCLUDE = `pkg-config --cflags gtk+-2.0` `pkg-config --cflags gtksourceview-1.0` `pkg-config --cflags gnome-vfs-2.0`

LIBS = `pkg-config --libs gtk+-2.0` `pkg-config --libs gtksourceview-1.0` `pkg-config --libs gnome-vfs-2.0`


OBJECTS = codeview.o desktop.o


$(OBJECTS): $($@:.o=)/$($@:.o=.c)
	gcc -g -c -o obj/$@ ${INCLUDE} $(@:.o=)/$(@:.o=.c)

TARGETS = $(foreach dir,$(OBJECTS),obj/$(dir))

${NAME}:	${OBJECTS}
	gcc -g -o ${NAME} ${INCLUDE} ${LIBS} main.c ${TARGETS}

debug:	all
	gdb -x breaks exe

pp:
	g++ ${INCLUDE} ${LIBS} main.c

edit:
	gedit breaks main.h main.c &

...works pretty fine now, tried to make OBJECTS possible to just give the names (without .o) ... but time expired...

thx all
have fun!
kickzha