From 46ee8ceecbd36f63b4fbfa77814aa0548023e677 Mon Sep 17 00:00:00 2001
From: Liu Yiqun <liuyiqun01@baidu.com>
Date: Fri, 15 Sep 2017 09:44:42 +0800
Subject: [PATCH] Move the sreach and link of veclib to iOS's toolchain file .

---
 cmake/cblas.cmake               | 30 +++++-----------------------
 cmake/cross_compiling/ios.cmake | 35 +++++++++++++++++++++++++++++++--
 2 files changed, 38 insertions(+), 27 deletions(-)

diff --git a/cmake/cblas.cmake b/cmake/cblas.cmake
index bac152bedf1..8fdc382f0c1 100644
--- a/cmake/cblas.cmake
+++ b/cmake/cblas.cmake
@@ -172,29 +172,9 @@ if (REFERENCE_CBLAS_INCLUDE_DIR AND REFERENCE_CBLAS_LIBRARY)
   message(STATUS "Found reference-cblas (include: ${CBLAS_INC_DIR}, library: ${CBLAS_LIBRARIES})")
 endif()
 
-if(IOS)
-  # Find vecLib for iOS
-  set(VECLIB_SEARCH_DIRS
-      ${IOS_SDK_ROOT}/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks
-      ${IOS_SDK_ROOT}/System/Library/Frameworks/Accelerate.framework/Frameworks
-      )
-  find_path(VECLIB_INC_DIR vecLib.h PATHS ${VECLIB_SEARCH_DIRS}/vecLib.framework/Headers)
-
-  include(FindPackageHandleStandardArgs)
-  find_package_handle_standard_args(vecLib DEFAULT_MSG VECLIB_INC_DIR)
-
-  if(VECLIB_FOUND)
-    set(CBLAS_FOUND ON)
-    set(CBLAS_PROVIDER vecLib)
-    set(CBLAS_INC_DIR ${VECLIB_INC_DIR})
-    if(VECLIB_INC_DIR MATCHES "^/System/Library/Frameworks/vecLib.framework.*")
-      set(CBLAS_LIBRARIES -lcblas "-framework vecLib")
-      message(STATUS "Found standalone vecLib.framework")
-    else()
-      set(CBLAS_LIBRARIES -lcblas "-framework Accelerate")
-      message(STATUS "Found vecLib as part of Accelerate.framework")
-    endif()
-
-    add_definitions(-DPADDLE_USE_VECLIB)
-  endif()
+if(IOS_USE_VECLIB_FOR_BLAS AND VECLIB_FOUND)
+  set(CBLAS_FOUND ON)
+  set(CBLAS_PROVIDER vecLib)
+  set(CBLAS_INC_DIR ${VECLIB_INC_DIR})
+  add_definitions(-DPADDLE_USE_VECLIB)
 endif()
diff --git a/cmake/cross_compiling/ios.cmake b/cmake/cross_compiling/ios.cmake
index 025928c21b1..0b38943952f 100644
--- a/cmake/cross_compiling/ios.cmake
+++ b/cmake/cross_compiling/ios.cmake
@@ -28,6 +28,7 @@
 # IOS_DEPLOYMENT_TARGET
 #   The minimum iOS deployment version, such as "7.0"
 # IOS_ENABLE_BITCODE = ON (default) or OFF
+# IOS_USE_VECLIB_FOR_BLAS = OFF (default) or ON
 # IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
 #   By default this location is automatcially chosen based on the IOS_PLATFORM value above.
 #   If set manually, it will override the default location and force the user of a particular Developer Platform
@@ -97,6 +98,11 @@ if(NOT DEFINED IOS_ENABLE_BITCODE)
 endif()
 set(IOS_ENABLE_BITCODE ${IOS_ENABLE_BITCODE} CACHE BOOL "Whether to enable bitcode")
 
+if(NOT DEFINED IOS_USE_VECLIB_FOR_BLAS)
+  set(IOS_USE_VECLIB_FOR_BLAS OFF)
+endif()
+set(IOS_USE_VECLIB_FOR_BLAS ${IOS_UES_VECLIB_FOR_BLAS} CACHE BOOL "Whether to use veclib")
+
 # Check the platform selection and setup for developer root
 if(${IOS_PLATFORM} STREQUAL "OS")
   set(IOS_PLATFORM_LOCATION "iPhoneOS.platform")
@@ -245,8 +251,33 @@ set(IOS_COMPILER_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} ${XCODE_IOS_BITCODE_
 set(CMAKE_C_FLAGS "${IOS_COMPILER_FLAGS} ${CMAKE_C_FLAGS}" CACHE STRING "C flags")
 set(CMAKE_CXX_FLAGS "${IOS_COMPILER_FLAGS} -fvisibility-inlines-hidden ${CMAKE_CXX_FLAGS}" CACHE STRING "CXX flags")
 
-set(CMAKE_C_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
-set(CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
+set(IOS_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first")
+
+if(IOS_USE_VECLIB_FOR_BLAS)
+  # Find vecLib for iOS
+  set(VECLIB_SEARCH_DIRS
+      ${IOS_SDK_ROOT}/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks
+      ${IOS_SDK_ROOT}/System/Library/Frameworks/Accelerate.framework/Frameworks
+      )
+  find_path(VECLIB_INC_DIR vecLib.h PATHS ${VECLIB_SEARCH_DIRS}/vecLib.framework/Headers)
+
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(vecLib DEFAULT_MSG VECLIB_INC_DIR)
+
+  if(VECLIB_FOUND)
+    if(VECLIB_INC_DIR MATCHES "^/System/Library/Frameworks/vecLib.framework.*")
+      set(IOS_LINK_FLAGS ${IOS_LINK_FLAGS} -lcblas "-framework vecLib")
+      message(STATUS "Found standalone vecLib.framework")
+    else()
+      set(IOS_LINK_FLAGS ${IOS_LINK_FLAGS} -lcblas "-framework Accelerate")
+      message(STATUS "Found vecLib as part of Accelerate.framework")
+    endif()
+
+  endif()
+endif()
+
+set(CMAKE_C_LINK_FLAGS "${IOS_LINK_FLAGS} ${CMAKE_C_LINK_FLAGS}")
+set(CMAKE_CXX_LINK_FLAGS "${IOS_LINK_FLAGS} ${CMAKE_CXX_LINK_FLAGS}")
 
 set(CMAKE_PLATFORM_HAS_INSTALLNAME 1)
 if(NOT IOS_ENABLE_BITCODE)
-- 
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