所以,我正在尝试为学校编写一个小程序,其中一部分需要使用 cmake。我有两个不同的类包含在它们自己的文件中,我将它们用作主类的一部分。我已将它们的标题包含在主项目标题中:
#include /path/to/header/1.h
#include /path/to/header/2.h
我遇到的问题是,当我在运行 cmake 后运行 make 时,对于尝试使用这两个库之一的任何实例,我都会收到未定义的引用错误。我知道这与链接器错误有关,但由于我是 cmake 新手,我不确定使用 TARGET_LINK_LIBRARIES 的正确方法是什么。
编辑
链接/关联我的库后,我有以下内容:
CMakeLists.txt:
# A name for the project
project(plasma-engine-gdrive)
# Find the required libaries
find_package(KDE4 REQUIRED)
include(KDE4Defaults)
add_definitions (${QT_DEFINITIONS} ${KDE4_DEFINITIONS}, -std=c++0x)
include_directories(
${CMAKE_SOURCE_DIR}
${CMAKE_BINARY_DIR}
${KDE4_INCLUDES}
./include
./lib
)
set (GOOGLE_LIBS include/atom_helper.h include/util/string_utils.h include/client/doc_list_service.h include/client/service.h)
set (GOOGLE_SRCS include/atom_helper.cc include/util/string_utils.cc include/client/doc_list_service.cc include/client/service.cc)
# We add our source code here
set(gdrive_engine_SRCS gdriveengine.cpp)
add_library (DataWrapper include/DataWrapper.cpp include/DataWrapper.h)
add_library (GData ${GOOGLE_SRCS} ${GOOGLE_LIBS})
# Now make sure all files get to the right place
kde4_add_plugin(plasma_engine_gdrive ${gdrive_engine_SRCS})
target_link_libraries(plasma_engine_gdrive
GData
DataWrapper
${KDE4_KDECORE_LIBS}
${KDE4_PLASMA_LIBS})
install(TARGETS plasma_engine_gdrive
DESTINATION ${PLUGIN_INSTALL_DIR})
install(FILES plasma-engine-gdrive.desktop
DESTINATION ${SERVICES_INSTALL_DIR})
还有太多的错误不能放在这里。这里有几个:
/usr/include/c++/4.6/bits/stl_map.h:467: undefined reference to `Glib::ustring::ustring()'
lib/libGData.a(atom_helper.o): In function `pair<Glib::ustring, Glib::ustring, void>':
/usr/include/c++/4.6/bits/stl_pair.h:132: undefined reference to `Glib::ustring::ustring(Glib::ustring const&)'
/usr/include/c++/4.6/bits/stl_pair.h:132: undefined reference to `Glib::ustring::ustring(Glib::ustring const&)'
lib/libGData.a(atom_helper.o): In function `pair<Glib::ustring, Glib::ustring>':
/usr/include/c++/4.6/bits/stl_pair.h:137: undefined reference to `Glib::ustring::ustring(Glib::ustring const&)'
/usr/include/c++/4.6/bits/stl_pair.h:137: undefined reference to `Glib::ustring::ustring(Glib::ustring const&)'