"fix cmake error"

CMakeLists.txt

@@ -212,6 +212,7 @@ elseif()
     set(WITH_ANAKIN OFF CACHE STRING "Anakin is used in GPU only now." FORCE)
 endif()
 
+include(flags)              # set paddle compile flags
 include(cudnn)              # set cudnn libraries, must before configure
 include(cupti)
 include(configure)          # add paddle env configuration
@@ -220,7 +221,6 @@ include(package)            # set paddle packages
 include(ccache)             # set ccache for compilation
 include(util)               # set unittest and link libs
 include(rdma)               # set rdma libraries
-include(flags)              # set paddle compile flags
 include(version)            # set PADDLE_VERSION
 include(coveralls)          # set code coverage
 include(inference_lib)      # add paddle fluid inference libraries

cmake/configure.cmake

@@ -56,10 +56,6 @@ if(NOT CMAKE_CROSSCOMPILING)
         set(SIMD_FLAG ${SSE3_FLAG})
     endif()
 endif()
-if(UNIX AND NOT APPLE)
-  # except apple from nix*Os family
-  set(LINUX TRUE)
-endif(UNIX AND NOT APPLE)
 
 if(NOT WITH_GOLANG)
     add_definitions(-DPADDLE_WITHOUT_GOLANG)

cmake/cudnn.cmake

@@ -42,11 +42,13 @@ endif(WIN32)
 if(Apple)
 set(CUDNN_LIB_NAME "libcudnn.dylib" "libcudnn.so")
 endif(Apple)
+
 find_library(CUDNN_LIBRARY NAMES ${CUDNN_LIB_NAME} # libcudnn_static.a
     PATHS ${CUDNN_CHECK_LIBRARY_DIRS} ${CUDNN_INCLUDE_DIR} ${__libpath_hist}
           NO_DEFAULT_PATH
     DOC "Path to cuDNN library.")
 
+
 if(CUDNN_INCLUDE_DIR AND CUDNN_LIBRARY)
     set(CUDNN_FOUND ON)
 else()

cmake/flags.cmake

@@ -142,6 +142,11 @@ else()
         ${GPU_COMMON_FLAGS})
 endif()
 
+if(UNIX AND NOT APPLE)
+  # except apple from nix*Os family
+  set(LINUX TRUE)
+endif(UNIX AND NOT APPLE)
+
 
 foreach(flag ${COMMON_FLAGS})
     safe_set_cflag(CMAKE_C_FLAGS ${flag})