Add preliminary support for yosemite

[leonardt]

Some changes to the makefile were needed to get caffe built on yosemite.

One change pulled from (https://groups.google.com/d/msg/caffe-users/rXjBlzWkA8c/kEKGeiqZhBAJ)

Build completes and all tests pass, but it's probably good to hold off on merging until someone else with a yosemite dev environment bootstrapped can test it.

[orsharir]

I've used Caffe on Yosemite for the past month with similar changes made locally and it's working fine so far.

[kloudkl]

The official build system is in the process of transition to CMake.

[leonardt]

Sounds good, if the make based build system is being deprecated than this can be closed.

[shelhamer]

The Makefile is not deprecated yet and is still the official build system.
The CMake build still isn't up to parity with the Makefile, so it's best to
make the Makefile compatible since CMake is still catching up and fixing
its broken cases.

On Wed, Oct 15, 2014 at 12:19 PM, Leonard Truong notifications@github.com
wrote:

Sounds good, if the make based build system is being deprecated than this
can be closed.

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#1237 (comment).

[dgolden1]

This PR looks similar to mine: #1310. However, @leonardt, you submitted yours first, so you win!

One difference is that you explicitly check for OS X 10.10 with the line:

ifneq ($(findstring 10.10, $(shell sw_vers -productVersion)),)

However, I believe that the framework not found vecLib issue (#1212) is the result of upgrading to XCode 6, not OS X 10.10, since I am getting it with XCode 6 on OS X 10.9 (Mavericks).

Neither of our PRs actually check for XCode 6 vs XCode 5. So if anyone knows how to do that, that would be a good change; alternatively, we can say that XCode 6 is required.

[leonardt]

@drdan14 good catch, xcodebuild -version should do the trick.

[dgolden1]

Here's an overly-long bash line that will give you the answer (checking the version of XCode command line tools, not XCode itself):

[[ "`pkgutil --pkg-info=com.apple.pkg.CLTools_Executables | grep version | awk '{print $2}'`" > "6" ]] && echo "true" || echo "false"

@leonardt, maybe you know how to turn that into a Makefile conditional

[leonardt]

This line seems to do the trick for me ifneq ($(findstring Xcode 6, $(shell xcodebuild -version)),)

[shelhamer]

I've collected fixes from this and other PRs in #1740. Thanks for noting these changes!