Errors while compiling gtkmm 3.0 programs

[Searock]

I've recently downloaded and installed gtkmm 3.0 and tried to compile hello world example from their documentation

#include <gtkmm.h>

int main(int argc, char *argv[])
{
  Glib::RefPtr<Gtk::Application> app =
    Gtk::Application::create(argc, argv,
      "org.gtkmm.examples.base");

  Gtk::ApplicationWindow window;

  return app->run(window);
} 

but it fails to compile and I get the following errors

searock@searock:~/snippets$ g++ test.cc -o test `pkg-config gtkmm-3.0 --cflags --libs`
test.cc: In function ‘int main(int, char**)’:
test.cc:5:16: error: ‘Application’ is not a member of ‘Gtk’
test.cc:5:16: error: ‘Application’ is not a member of ‘Gtk’
test.cc:5:32: error: template argument 1 is invalid
test.cc:5:38: error: invalid type in declaration before ‘=’ token
test.cc:6:10: error: ‘Gtk::Application’ has not been declared
test.cc:9:3: error: ‘ApplicationWindow’ is not a member of ‘Gtk’
test.cc:9:26: error: expected ‘;’ before ‘window’
test.cc:11:13: error: base operand of ‘->’ is not a pointer
test.cc:11:19: error: ‘window’ was not declared in this scope

When I tried searching for the errors I found that Gtk::Application::create method is available from gtkmm 3.4 and my version is gtkmm 3.0

And I also found another snippet which compiled and ran successfully.

#include <gtkmm.h>

int main(int argc, char *argv[]) {
    Gtk::Main kit(argc, argv);
    Gtk::Window window;
    Gtk::Main::run(window);
    return 0;
} 

Does this mean that examples in official gtkmm documentation will only work in 3.4 or above?

Do they have a documentation for 3.0 version?

I'm confused as they have only released unstable version upto gtkmm 3.1

[Hetepeperfan]

You can run:

$pkg-config --modversion gtkmm-3.0

to see which version of gtkmm you use. And indeed, Gtk::Application is introduced in version 3.4 and since that version using Gtk::Main is deprecated.
Recent versions of ubuntu ship with a recent version of gtkmm, at least 12.04 does.

[bird1500]

If you download and install Gtk(mm) yourself then you either love pain or hacking.
Spare yourself hours/days/weeks of troubles and install a recent version of Ubuntu which comes with a recent version of gtk(mm). Ubuntu 10.04 is history.

[Searock]

You can run:

$pkg-config --modversion gtkmm-3.0

to see which version of gtkmm you use. And indeed, Gtk::Application is introduced in version 3.4 and since that version using Gtk::Main is deprecated.
Recent versions of ubuntu ship with a recent version of gtkmm, at least 12.04 does.

I've two machines one with 11.10 and other with 12.10 (gnome remix)

So I've downloaded and installed gtkmm 3.0 in 11.10 and I get the three versions for

$pkg-config --modversion gtkmm-3.0

gtkmm 2.4
gtkmm 3.0
gtkmm 3.0-dev

(I guess it was prefixed with lib-)

while in 12.10 it says

Package gtkmm-3.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gtkmm-3.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gtkmm-3.0' found

I even tried running

dpkg -l |grep gtkmm

and it shows me the following output in 12.10

libgtkmm-3.0-1:amd64 3.5.13-0ubuntu1 amd64 C++ wrappers for GTK+ (shared libraries)

I can't compile the program in 12.10 as it says

Package gtkmm-3.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gtkmm-3.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gtkmm-3.0' found
test.cc:1:20: fatal error: gtkmm.h: No such file or directory
compilation terminated.

If you download and install Gtk(mm) yourself then you either love pain or hacking.
Spare yourself hours/days/weeks of troubles and install a recent version of Ubuntu which comes with a recent version of gtk(mm). Ubuntu 10.04 is history.

I didn't know it would be such a pain

Is it possible to run the programs on 12.10 (gnome remix)?

[SledgeHammer_999]

In 12.10 do a:

pkg-config --list-all | grep -i gtkmm 

Does it return anything?

Have you installed the libgtkmm-3.0-dev package?

[Searock]

In 12.10 do a:

pkg-config --list-all | grep -i gtkmm 

Does it return anything?

Have you installed the libgtkmm-3.0-dev package?

It displays nothing for 12.10 and I get the following result for 11.10

gtkmm-3.0 gtkmm - C++ binding for the GTK+ toolkit

[SledgeHammer_999]

I installed 12.10 in a Virtual Machine to check this out.

You should:
1. Run "sudo apt-get update"
2. Run "sudo apt-get install libgtkmm-3.0-dev"
3. Now "pkg-config --list-all | grep -i gtkmm" should give a 3.0 entry

If you cannot find the "libgtkmm-3.0-dev" package you should try to change the mirror apt/synaptic/software center uses. The default mirror may be corrupted.
If you already have installed the "libgtkmm-3.0-dev" package you should try reinstalling it.

If all this fail I don't know what else could be wrong with your install.

[Searock]

I installed 12.10 in a Virtual Machine to check this out.

You should:
1. Run "sudo apt-get update"
2. Run "sudo apt-get install libgtkmm-3.0-dev"
3. Now "pkg-config --list-all | grep -i gtkmm" should give a 3.0 entry

If you cannot find the "libgtkmm-3.0-dev" package you should try to change the mirror apt/synaptic/software center uses. The default mirror may be corrupted.
If you already have installed the "libgtkmm-3.0-dev" package you should try reinstalling it.

If all this fail I don't know what else could be wrong with your install.

Thanks a lot SledgeHammer. Its working as expected. Thanks for all the help

[SledgeHammer_999]

What did you do to fix it?

[Searock]

What did you do to fix it?

Installing libgtkmm-3.0-dev solved my problem. Thanks for the help.