Re: GTK+ (embarrassing) Makefile question...

[Christian Seberino <seberino spawar navy mil>]

Ron

Thanks for reply.  I was getting desperate to get
this Makefile question answered since it was slowing
down my GTK+ work and I didn't know of any make mailing lists.
I hope this one post was OK. :)

I made the changes you mentioned to rules but now mysteriously
Main.cpp doesn't get flags when make works on it?!?!?!
Can I ask you this hopefully last thing?

(Main.cpp is the ONLY .cpp file that does not
have a header file.  Also, I did not add header files
to $SRCS.  The solution probably has something to do with
this fact but I don't know what.)


(seberino /home/seberino/MAIN/AESR) % make
g++ `gtk-config --cflags` -c AESRSimulator.cpp
g++ `gtk-config --cflags` -c EulerMaruyama.cpp
g++ `gtk-config --cflags` -c GUI.cpp
g++    -c -o Main.o Main.cpp
In file included from /usr/include/gdk/gdktypes.h:33,
                 from /usr/include/gdk/gdk.h:31,
                 from /usr/include/gtk/gtk.h:31,
                 from Window.h:13,
                 from GUI.h:13,
                 from Main.cpp:24:
/usr/include/glib.h:66: glibconfig.h: No such file or directory
make: *** [Main.o] Error 1

...

I tried removing tabs from $SRCS below and moving Main.cpp to
first line of $SRCS definition.. all to no avail.  Makefiles
just confuse me.


Here is the new and improved version...

PROGRAM	=	Main

CPPC	=	g++

FLAGS	=	`gtk-config --cflags`

LIBS	=	`gtk-config --libs` -lpthread

SRCS	=	AESRSimulator.cpp EulerMaruyama.cpp GUI.cpp    \
                Main.cpp RandomNumber.cpp SignalProcessing.cpp \
                Window.cpp

OBJS	=	$(SRCS:.cpp=.o)

%.o:		%.cpp %.h
		$(CPPC) $(FLAGS) -c $*.cpp

all:		$(PROGRAM)

$(PROGRAM):	$(OBJS)
		$(CPPC) $(OBJS) $(LIBS) -o $(PROGRAM)

clean:
		rm -f $(OBJS) $(PROGRAM)



On Wed, Mar 27, 2002 at 10:13:33AM -0800, rsteinke w-link net wrote:
> From: Christian Seberino <seberino spawar navy mil>
> >
> > This Makefile will recreate GTK+ object file if header file
> > is "touched" with touch command which is good....
> >
> > It will NOT recreate object file when *.cpp file is 
> > "touched" the same way.
> >
> > WHY IS the "%.o: %.h" rule working
> > but the "%.o: %.cpp" rule IS NOT!!??!?!?
> >
> > Here is makefile...
> 
> <snip>
> 
> > %.o:		%.h
> > 		$(CPPC) $(FLAGS) -c $*.cpp
> >
> > %.o:		%.cpp
> > 		$(CPPC) $(FLAGS) -c $<
> 
> While you are allowed to have more than one dependency for a file, you are not
> allowed to have more than one rule on how to build that file. What you need is:
> 
> %.o:		%.h %.cpp
> 		$(CPPC) $(FLAGS) -c $*.cpp
> 
> BTW, this isn't really a gtk+ specific question. This would be more
> appropriate on a discussion list for "make".
> 
> Ron Steinke

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