init

cmake/FindLOG4CPP.cmake

@@ -0,0 +1,55 @@
+# - Find Log4cpp
+# Find the native LOG4CPP includes and library
+#
+#  LOG4CPP_INCLUDE_DIRS - where to find LOG4CPP.h, etc.
+#  LOG4CPP_LIBRARIES   - List of libraries when using LOG4CPP.
+#  LOG4CPP_FOUND       - True if LOG4CPP found.
+ 
+# 判断是否已经包含log4cpp
+if (LOG4CPP_INCLUDE_DIR)
+  set(LOG4CPP_FIND_QUIETLY TRUE)
+endif ()
+ 
+# 查找头文件位置
+# PATH_SUFFIXES 路径后缀，正常安装的log4cpp位于系统路径/log4cpp/文件夹下
+find_path(LOG4CPP_INCLUDE_DIR
+  NAMES Category.hh
+  # 可以通过以下命令来手动制定查找路径
+  # PATHS /usr/local/include
+  PATH_SUFFIXES log4cpp
+  DOC "Log4cpp include directories"
+)
+ 
+# 查找库文件位置
+find_library(LOG4CPP_LIBRARY
+  NAMES log4cpp
+  DOC "Log4cpp library"
+)
+ 
+# 同时找到头文件位置和库文件位置时给相关变量赋值
+if (LOG4CPP_INCLUDE_DIR AND LOG4CPP_LIBRARY)
+  set(LOG4CPP_FOUND TRUE)
+  set(LOG4CPP_LIBRARIES ${LOG4CPP_LIBRARY})
+  set(LOG4CPP_INCLUDE_DIRS ${LOG4CPP_INCLUDE_DIR})
+else ()
+  set(LOG4CPP_FOUND FALSE)
+  message(WARNING "LOG4CPP not found")
+endif ()
+ 
+# 打印一些错误信息
+if (LOG4CPP_FOUND)
+  if (NOT LOG4CPP_FIND_QUIETLY)
+    message(STATUS "Found LOG4CPP: ${LOG4CPP_LIBRARIES}")
+  endif ()
+else ()
+  if (LOG4CPP_FIND_REQUIRED)
+    message(STATUS "Looked for LOG4CPP libraries named ${LOG4CPPS_NAMES}.")
+    message(FATAL_ERROR "Could NOT find LOG4CPP library")
+  endif ()
+endif ()
+ 
+# 这个选项不是很懂，貌似是给cmake gui用的
+mark_as_advanced(
+  LOG4CPP_LIBRARIES
+  LOG4CPP_INCLUDE_DIRS
+)