fix building model_optimize_tool error on mac (#2075)

* fix building model_optimize_tool error on mac, test=develop

* fix model_optimize_tool build error, test=develop

cmake/lite.cmake

@@ -165,11 +165,13 @@ function(lite_cc_binary TARGET)
             )
     cc_binary(${TARGET} SRCS ${args_SRCS} DEPS ${deps} ${args_DEPS})
     target_compile_options(${TARGET} BEFORE PRIVATE -Wno-ignored-qualifiers)
+    if (NOT APPLE)
         # strip binary target to reduce size
         add_custom_command(TARGET ${TARGET} POST_BUILD
                 COMMAND "${CMAKE_STRIP}" -s
                 "${TARGET}"
                 COMMENT "Strip debug symbols done on final executable file.")
+    endif()
     # collect targets need to compile for lite
     if (NOT args_EXCLUDE_COMPILE_DEPS)
         add_dependencies(lite_compile_deps ${TARGET})

lite/backends/x86/CMakeLists.txt

@@ -4,10 +4,12 @@ endif()
 
 configure_file(cupti_lib_path.h.in ${CMAKE_CURRENT_BINARY_DIR}/cupti_lib_path.h)
 configure_file(warpctc_lib_path.h.in ${CMAKE_CURRENT_BINARY_DIR}/warpctc_lib_path.h)
-
+lite_cc_library(target_wrapper_x86 SRCS target_wrapper.cc)
+if (LITE_ON_MODEL_OPTIMIZE_TOOL)
+    return()
+endif(LITE_ON_MODEL_OPTIMIZE_TOOL)
 lite_cc_library(dynamic_loader SRCS dynamic_loader.cc DEPS glog gflags)
 lite_cc_library(dynload_mklml SRCS mklml.cc DEPS dynamic_loader mklml)
-lite_cc_library(target_wrapper_x86 SRCS target_wrapper.cc)
 lite_cc_library(x86_cpu_info SRCS cpu_info.cc DEPS xbyak)
 
 add_subdirectory(jit)

lite/operators/range_op.cc

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #include "lite/operators/range_op.h"
+#include <cmath>
 #include <functional>
 #include "lite/core/op_registry.h"
 

lite/tools/build.sh

@@ -56,8 +56,12 @@ function build_model_optimize_tool {
     prepare_thirdparty
     mkdir -p build.model_optimize_tool
     cd build.model_optimize_tool
-    cmake .. -DWITH_LITE=ON -DLITE_ON_MODEL_OPTIMIZE_TOOL=ON -DWITH_TESTING=OFF -DLITE_BUILD_EXTRA=ON
-    make model_optimize_tool -j$NUM_CORES_FOR_COMPILE
+    cmake .. -DWITH_LITE=ON \
+      -DLITE_ON_MODEL_OPTIMIZE_TOOL=ON \
+      -DWITH_TESTING=OFF \
+      -DLITE_BUILD_EXTRA=ON \
+      -DWITH_MKL=OFF
+    make model_optimize_tool -j$NUM_PROC
 }
 
 function make_tiny_publish_so {