support OS X Yosemite / 10.10

- pick libstdc++ for OS X (regardless of version)
- make gtest rely on its own tuple to not conflict with clang
  (thanks @pluskid!)
- 10.10 has Accelerate while 10.9 has vecLib for BLAS
  (thanks @leonardt and @drdan14)

Author: shelhamer

Makefile

@@ -234,15 +234,15 @@ endif
 # libstdc++ instead of libc++ for CUDA compatibility on 10.9
 ifeq ($(OSX), 1)
 	CXX := /usr/bin/clang++
+	CXXFLAGS += -stdlib=libstdc++
+	LINKFLAGS += -stdlib=libstdc++
 	# clang throws this warning for cuda headers
 	WARNINGS += -Wno-unneeded-internal-declaration
-	ifneq ($(findstring 10.9, $(shell sw_vers -productVersion)),)
-		CXXFLAGS += -stdlib=libstdc++
-		LINKFLAGS += -stdlib=libstdc++
-	endif
+	# gtest needs to use its own tuple to not conflict with clang
+	CXXFLAGS += -DGTEST_USE_OWN_TR1_TUPLE=1
 	# boost::thread is called boost_thread-mt to mark multithreading on OS X
 	LIBRARIES += boost_thread-mt
-        NVCCFLAGS += -DOSX
+	NVCCFLAGS += -DOSX
 endif
 
 # Custom compiler
@@ -304,9 +304,16 @@ else
 		endif
 	else ifeq ($(OSX), 1)
 		# OS X packages atlas as the vecLib framework
-		BLAS_INCLUDE ?= /System/Library/Frameworks/vecLib.framework/Versions/Current/Headers/
 		LIBRARIES += cblas
-		LDFLAGS += -framework vecLib
+		# 10.10 has accelerate while 10.9 has veclib
+		XCODE_CLT_VER := $(shell pkgutil --pkg-info=com.apple.pkg.CLTools_Executables | grep -o 'version: 6')
+		ifneq (,$(findstring version: 6,$(XCODE_CLT_VER)))
+			BLAS_INCLUDE ?= /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Headers/
+			LDFLAGS += -framework Accelerate
+		else
+			BLAS_INCLUDE ?= /System/Library/Frameworks/vecLib.framework/Versions/Current/Headers/
+			LDFLAGS += -framework vecLib
+		endif
 	endif
 endif
 INCLUDE_DIRS += $(BLAS_INCLUDE)

docs/installation.md

@@ -5,7 +5,7 @@ title: Installation
 # Installation
 
 Prior to installing, it is best to read through this guide and take note of the details for your platform.
-We have installed Caffe on Ubuntu 14.04, Ubuntu 12.04, OS X 10.9, and OS X 10.8.
+We have installed Caffe on Ubuntu 14.04, Ubuntu 12.04, OS X 10.10, 10.9, and 10.8.
 
 - [Prerequisites](#prerequisites)
 - [Compilation](#compilation)
@@ -156,9 +156,9 @@ Building boost from source is needed to link against your local Python (exceptio
 **Note** that the HDF5 dependency is provided by Anaconda Python in this case.
 If you're not using Anaconda, include `hdf5` in the list above.
 
-#### 10.9-specific Instructions
+#### 10.10- and 10.9-specific Instructions
 
-In OS X 10.9, clang++ is the default C++ compiler and uses `libc++` as the standard library.
+In OS X 10.9+, clang++ is the default C++ compiler and uses `libc++` as the standard library.
 However, NVIDIA CUDA (even version 6.0) currently links only with `libstdc++`.
 This makes it necessary to change the compilation settings for each of the dependencies.
 
@@ -226,19 +226,19 @@ Then, whenever you want to update homebrew, switch back to the master branches,
     git checkout master
     cd /usr/local/Library/Taps/homebrew/homebrew-science
     git checkout master
-    
+
     # Update homebrew; hopefully this works without errors!
     brew update
-    
+
     # Switch back to the caffe branches with the forumlae that you modified earlier
     cd /usr/local
     git rebase master caffe
     # Fix any merge conflicts and commit to caffe branch
     cd /usr/local/Library/Taps/homebrew/homebrew-science
     git rebase master caffe
     # Fix any merge conflicts and commit to caffe branch
-    
-    # Done!            
+
+    # Done!
 
 At this point, you should be running the latest Homebrew packages and your Caffe-related modifications will remain in place.