Question

我设置了这样的CMakeLists：

project(physiotreapy)

set(HEDEAR_FILES Physiotreapy.h)
set(SOURCE_FILES Physiotreapy.cpp)

add_library(libphysiotreapy STATIC ${SOURCE_FILES})
target_include_directories(libphysiotreapy PUBLIC .)

add_executable(physiotreapy ${SOURCE_FILES} main.cpp)

find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)

include_directories(${GTK3_INCLUDE_DIRS})
link_directories(${GTK3_LIBRARY_DIRS})

add_definitions(${GTK3_CFLAGS_OTHER})

target_link_libraries(physiotreapy libphysiotreapy )

但是当我尝试运行此代码时：

#include <gtk/gtk.h>

int main (int argc, char *argv[]) {
    GtkWidget *okno;

    gtk_init(&argc,&argv);
    okno = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_widget_show (okno);

    gtk_main ();

    return 0;
}

我收到一些错误：

/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:11: undefined reference to `gtk_init_abi_check'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:11:(.text+0x35): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `gtk_init_abi_check'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:12: undefined reference to `gtk_window_new'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:12:(.text+0x3f): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `gtk_window_new'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:13: undefined reference to `gtk_widget_show'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:13:(.text+0x4f): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `gtk_widget_show'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:15: undefined reference to `gtk_main'
/cygdrive/c/Users/Mateusz/Desktop/My project/projects/physiotreapy/main.cpp:15:(.text+0x54): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `gtk_main'

Answer 1

获得Gtk的两个最佳选择是：

MSYS2使用了mingw。
gvsbuild使用msvc。

Answer 2

看起来你有95％，但我想你忘了列出要链接的库。我的＆＃39; FooBar＆＃39;的CMakeList.txt文件的相关部分。 project包含这个，前3行与你的几乎相同：

FIND_PACKAGE ( PkgConfig REQUIRED )
PKG_CHECK_MODULES( GTK REQUIRED gtk+-3.0 ) # or use gtk+-2.0, etc...
INCLUDE_DIRECTORIES ( ${GTK_INCLUDE_DIRS} )
SET ( FOOBAR_LIBS ${GTK_LIBRARIES} )

请注意我追踪所需库的第4行。然后在我创建可执行文件时在我的CMakeLists.txt中：

ADD_EXECUTABLE ( foobar foobar.cpp )
TARGET_LINK_LIBRARIES( foobar ${CMAKE_THREAD_LIBS_INIT} ${FOOBAR_LIBS} )

请注意$ {FOOBAR_LIBS}，在我的案例和许多实际示例中包含许多库，而不仅仅是GTK +库。另一种流行的方法是列出这样的库：

ADD_EXECUTABLE ( foobar foobar.cpp )
TARGET_LINK_LIBRARIES( foobar ${CMAKE_THREAD_LIBS_INIT} ${GTK_LIBRARIES} )

如果你有多个需要链接的软件包，你可以将它们全部列出来，类似于：

ADD_EXECUTABLE ( foobar foobar.cpp )
TARGET_LINK_LIBRARIES( foobar ${CMAKE_THREAD_LIBS_INIT} ${GTK_LIBRARIES} ${POSTGRESQL_LIBRARIES} ${OPENGL_LIBRARIES} )

如何使用GTK +设置CMakeLists？

2 个答案: