Re: My first Makefile HELP!!

[Jamiil Abduqadir]

Ya! 
That's it!
Thanks everyone!!

On 3/14/07, Greg Chicares <address@hidden> wrote:

On 2007-3-14 18:04 UTC, Jamiil Abduqadir wrote:
>
> CPP=g++
[...]
> CFLAGS= -Wall -ggdb3

BTW, it would be more conventional to use these names:
  CXX=g++
  CXXFLAGS= -Wall -ggdb3
Usually $(CPP) refers to the C preprocessor. See
  "Variables for Specifying Commands" and
  "Variables Used by Implicit Rules"
in the 'make' manual for common usages that others might assume.

> GTKmm_LIBS=`pkg-config gtkmm-2.4 --cflags --libs`

'make' doesn't treat backquotes as special.
If you want to run that command only once, try:
  GTKmm_LIBS:=$(shell pkg-config gtkmm-2.4 --cflags --libs)

The real problem is that gtk options are passed to the linker:

> OBJS = main.o helloworld.o
> my_app: $(OBJS)
>         $(CPP) $(LDLIBS) $(OBJS) -o $(EXEC)  $(GTKmm_LIBS)

...but not to the compiler:

> main.o: main.cpp
>         $(CPP) $(CFLAGS) -c main.cpp

so the compiler doesn't know where gtk's headers are:

> This is the error I get:g++ -Wall -ggdb3  -c main.cpp
> main.cpp:1:24: gtkmm/main.h: No such file or directory

because it needs these '-I' options:

> It looks as if cannot find the gtkmm library, however, when I type "#
> pkg-config gtkmm-2.4 --cflags" I get "-DXTHREADS
> -I/usr/local/include/glibmm-2.4 -I/usr/local/lib/glibmm-2.4 /include
> -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include
[...]

I don't really use pkgconfig, but I guess it would work if
you added something like this:

  CFLAGS+=$(shell pkg-config gtkmm-2.4 --cflags)

right after your original definition of $(CFLAGS).

-- 
When in doubt remember that,
"By the Guidence of God, an amateur built The Ark... and that guided by science 'they' built The Titanic!"