aclocal gives warning with my configure.ac with gtkmm, did something wrong?

violagirl23 · 02-05-2008, 01:57 PM

I'm trying to use my first make file, and it's my first program with gtkmm....
But I think I'm doing something wrong. I made my configure.ac file, here it is:

Code:

AC_INIT(src/firstwindow.cpp)
AM_INIT_AUTOMAKE(firstwindow,0.1)
AC_PROG_CC
AC_PROG_CXX
PKG_CHECK_MODULES([MYAPP], [gtkmm-2.4 >= 2.8.0])
AC_PROG_INSTALL
AC_OUTPUT(Makefile src/Makefile)

But if I then run aclocal, it has a problem with the PKG_CHECK_MODULES line for the GTK.
It prints out:

Code:

aclocal
/usr/share/aclocal/gtkgl.m4:4: warning: underquoted definition of AM_PATH_GTKGL
/usr/share/aclocal/gtkgl.m4:4:   run info '(automake)Extending aclocal'
/usr/share/aclocal/gtkgl.m4:4:   or see http://sources.redhat.com/automake/automake.html#Extending-aclocal

Am I not even supposed to use aclocal? Ive never used a make file before, so I was just trying to follow the instructions...

The program DOES fail to compile later because it isn't using the GTK library... so that's probably the problem.
It says:

Code:

 make
Making all in src
make[1]: Entering directory `/home/violagirl23/programs/firstwindow/src'
g++ -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"firstwindow\" -DVERSION=\"0.1\" -I.     -g -O2 -MT firstwindow.o -MD -MP -MF .deps/firstwindow.Tpo -c -o firstwindow.o firstwindow.cpp
firstwindow.cpp:1:19: error: gtkmm.h: No such file or directory
firstwindow.cpp: In function ‘int main(int, char**)’:
firstwindow.cpp:5: error: ‘Gtk’ has not been declared
firstwindow.cpp:5: error: expected `;' before ‘kit’
firstwindow.cpp:6: error: ‘Gtk’ has not been declared
firstwindow.cpp:6: error: expected `;' before ‘window’
firstwindow.cpp:7: error: ‘Gtk’ has not been declared
firstwindow.cpp:7: error: ‘window’ was not declared in this scope
make[1]: *** [firstwindow.o] Error 1
make[1]: Leaving directory `/home/violagirl23/programs/firstwindow/src'
make: *** [all-recursive] Error 1

Eep! I KNOW I have gtkmm, I got it to compile with just g++ like this:

Code:

g++ `pkg-config gtkmm-2.4 --cflags --libs`'

So what could be the problem here?

gnashley · 02-05-2008, 04:45 PM

Those warnings from aclocal are quite commonly seen and non-fatal.

violagirl23 · 02-05-2008, 07:14 PM

Hm, then I must have another problem as for why it is not compiling... :/
I'm sure I'm missing something so simple...
So I think I'm just doing something wrong in general, forgetting something.
Here is my current configure.ac:

Quote:

AC_INIT(src/firstwindow.cpp)
AM_INIT_AUTOMAKE(firstwindow,0.1)
AC_PROG_CC
AC_PROG_CXX
PKG_CHECK_MODULES([firstwindow], [gtkmm-2.4 >= 2.8.0])
AC_PROG_INSTALL
AC_OUTPUT(Makefile src/Makefile)

I am using this tutorial: http://www.gtkmm.org/docs/gtkmm-2.4/...d-linking.html
and it says:

Quote:

To simplify compilation, we use pkg-config, which is present in all (properly installed) gtkmm installations. This program 'knows' what compiler switches are needed to compile programs that use gtkmm. The --cflags option causes pkg-config to output a list of include directories for the compiler to look in; the --libs option requests the list of libraries for the compiler to link with and the directories to find them in. Try running it from your shell-prompt to see the results on your system.

However, this is even simpler when using the PKG_CHECK_MODULES() macro in a standard configure.ac file with autoconf and automake. For instance:

PKG_CHECK_MODULES([MYAPP], [gtkmm-2.4 >= 2.8.0])

This checks for the presence of gtkmm and defines MYAPP_LIBS and MYAPP_CFLAGS for use in your Makefile.am files.

When they said MYAPP, I wasn't sure if they literally meant "MYAPP" or the name of my application, which is firstwindow. I tried the latter.
Now, are they say I need to put something in my Makefile.am as well?
I tried putting the lines firstwindow_LIBS and firstwindow_CFLAGS in there and it wouldn't even let me do make, just gave an error about separators.
So I think I'm just missing some general concept here.... could anyone enlighten me? Because I'm still not very familiar with make files...