我正在尝试将 log4cpp 链接到我的项目。我使用 CMake,但我想不出这样做的方法。
Log4cpp 安装在 projectfolder/log4cpp/上(其中有 bin/include/lib/...)
我使用以下 Findlog4cpp.cmake :
IF (LOG4CPP_FOUND)
SET(LOG4CPP_FIND_QUIETLY TRUE)
ENDIF (LOG4CPP_FOUND)
FIND_PATH(LOG4CPP_INCLUDE_DIR log4cpp/FileAppender.hh
"./log4cpp/include/"
)
FIND_LIBRARY(LOG4CPP_LIBRARIES
NAMES liblog4cpp.so
PATHS "./log4cpp/lib"
)
SET(LOG4CPP_FOUND 0)
IF(LOG4CPP_INCLUDE_DIR)
IF(LOG4CPP_LIBRARIES)
SET(LOG4CPP_FOUND 1 CACHE INTERNAL "log4cpp found")
IF (NOT LOG4CPP_FIND_QUIETLY)
MESSAGE(STATUS "Found Log4CPP")
ENDIF (NOT LOG4CPP_FIND_QUIETLY)
ENDIF(LOG4CPP_LIBRARIES)
ENDIF(LOG4CPP_INCLUDE_DIR)
MARK_AS_ADVANCED(
LOG4CPP_INCLUDE_DIR
LOG4CPP_LIBRARIES
)
在我的 CMakeLists.txt 中,我称它为:
...
FIND_PACKAGE(log4cpp REQUIRED)
INCLUDE_DIRECTORIES(${LOG4CPP_INCLUDE_DIR})
SET(LIBS ${LOG4CPP_LIBRARIES} ${LIBS})
MESSAGE("############################# ${LOG4CPP_LIBRARIES}")
MESSAGE("############################# ${LOG4CPP_INCLUDE_DIR}")
...
输出:
-- Found Log4CPP
############################# /SOMEPATH/projectfolder/log4cpp/lib/liblog4cpp.so
############################# /SOMEPATH/projectfolder/log4cpp/include
-- Configuring done
-- Generating done
-- Build files have been written to: /SOMEPATH/projectfolder/
然后当我运行 make 时出现以下错误:
/SOMEPATH/projectfolder/common/Common.h:24:31: error: log4cpp/Category.hh: No such file or directory
/SOMEPATH/projectfolder/common/Common.h:25:35: error: log4cpp/FileAppender.hh: No such file or directory
/SOMEPATH/projectfolder/common/Common.h:26:34: error: log4cpp/BasicLayout.hh: No such file or directory
我只是将 header 包含在 common.h 中(#include "log4cpp/xxx.hh")
我补充说,没有 log4cpp,所有构建和编译工作正常(使用 cmake 然后 make)
任何帮助将不胜感激
最佳答案
如果您要将公共(public)目录添加为具有自己的 CMakeLists.txt 的子目录,则需要在调用 ADD_SUBDIRECTORY
之前调用 INCLUDE_DIRECTORIES
(如果您已经需要这些目录)包括在内以供传承。
关于c++ - 使用 cmake 将 log4cpp 库链接到项目,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10580789/