linking to gtk libraries | Together C & C++ | Page 1

runic pulsar Dec 19, 2023, 11:53 AM

#

hi, i'm trying to gtk4 on windows using gtkmm but i can't get it to link librieries correcly
this is my test code:

#include <gtkmm.h>

class MyWindow : public Gtk::Window
{
public:
  MyWindow();
};

MyWindow::MyWindow()
{
  set_title("Basic application");
  set_default_size(200, 200);
}

int main(int argc, char* argv[])
{
  auto app = Gtk::Application::create("org.gtkmm.examples.base");
  return app->make_window_and_run<MyWindow>(argc, argv);
}

and my cmake:

cmake_minimum_required(VERSION 3.5)
project(GTKTutorial)

find_package(PkgConfig)

# pkg_check_modules(GTKMM gtkmm-2.4)

link_directories(
    ${GTKMM_LIBRARY_DIRS}  )

include_directories(
    ${GTKMM_INCLUDE_DIRS}  )

set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)

set(GTKMM_INCLUDE_DIRS "C:/msys64/mingw64/include/gtkmm-4.0")
set(GTKMM_LIBRARY_DIRS "C:/msys64/mingw64/lib")
set(GTKMM_LIBRARIES  "C:/msys64/mingw64/lib")
set(ENV{PKG_CONFIG_PATH} "C:/msys64/mingw64/lib/pkgconfig")

find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK4 REQUIRED gtk4)

include_directories(${GTK4_INCLUDE_DIRS})
link_directories(${GTK4_LIBRARY_DIRS})
add_definitions(${GTK4_CFLAGS_OTHER})

add_executable(TutorialApp main.cpp)
target_link_libraries(TutorialApp ${GTKMM_LIBRARIES} )

and error i get is fatal error: gtkmm.h: No such file or directory
cmake also gives me warning CMake Warning at CMakeLists.txt:30 (target_link_libraries):Target "TutorialApp" requests linking to directory "C:/msys64/mingw64/lib". Targets may link only to libraries. CMake is dropping the item.

balmy crescentBOT Dec 19, 2023, 11:53 AM

#

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sonic sequoia Dec 19, 2023, 1:05 PM

#

Set the enviroment variables before the linking

#

But are you sure that you are linking to where the DLL

#

Are?

runic pulsar Dec 19, 2023, 1:34 PM

#

after cheanging it to

cmake_minimum_required(VERSION 3.5)
project(GTKTutorial)

find_package(PkgConfig)

pkg_check_modules(GTKMM gtkmm-2.4)

set(GTKMM_INCLUDE_DIRS "C:/msys64/mingw64/include/gtkmm-4.0")
set(GTKMM_LIBRARY_DIRS "C:/msys64/mingw64/lib")
set(GTKMM_LIBRARIES  "C:/msys64/mingw64/lib")
set(ENV{PKG_CONFIG_PATH} "C:/msys64/mingw64/lib/pkgconfig")

link_directories(
    ${GTKMM_LIBRARY_DIRS}  )

include_directories(
    ${GTKMM_INCLUDE_DIRS}  )

set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)

find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK4 REQUIRED gtk4)

include_directories(${GTK4_INCLUDE_DIRS})
link_directories(${GTK4_LIBRARY_DIRS})
add_definitions(${GTK4_CFLAGS_OTHER})

add_executable(TutorialApp main.cpp)
target_link_libraries(TutorialApp ${GTKMM_LIBRARIES} )
``` i still get the same error

#

about ddl only ddl i can find are in bin but there are no gtkmm ddl

#linking to gtk libraries