setting up caffe on mac 10.12 (sierra) – "symbol(s) not found for architecture x86_64"

[sarah h]

hello, 

i have been trying to set up caffe on my macbook pro for three days now... maybe you can help me?

i was originally on mac os 10.11 el capitan with an outdated xcode (7.3). in order to update xcode i had to upgrade to Sierra (mac os 10.12)

i followed several tutorials including these:

- http://caffe.berkeleyvision.org/install_osx.html

- https://gist.github.com/kylemcdonald/0698c7749e483cd43a0e

- https://gist.github.com/doctorpangloss/f8463bddce2a91b949639522ea1dcbe4

- https://eddiesmo.wordpress.com/2016/12/20/how-to-set-up-caffe-environment-and-pycaffe-on-os-x-10-12-sierra/

but whenever i try to run 

make all

i get this error:

LD -o .build_release/lib/libcaffe.so.1.0.0

clang: warning: argument unused during compilation: '-pthread'

Undefined symbols for architecture x86_64:

  "cv::String::deallocate()", referenced from:

..............

..............

..............

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

make: *** [.build_release/lib/libcaffe.so.1.0.0] Error 1

- i have xcode 8 now, but downgraded the xcode command line tools to 7.3.2.

- i don't have an NVIDIA graphics card but still installed CUDA (from what i read online it's a prerequisite for caffe)... i tried cuda 7 (as recommended on the berkeley vision site) and currently cuda 8

- right now i'm using CUDA-8 

- i used homebrew to install opencv as recommended online (opencv 2.4.13.2)

- i realize that the linker errors have to do with libc++ vs libstdc++  ! i manually checked all kinds of dependencies with otool -L to see if any still used libstdc++ but it seems they should all be built with libc++.

- i use openblas

- protobuf 3.3.0

- i added opencv_highgui opencv_imgproc opencv_core opencv_imgcodecs to LIBRARIES in the makefile

any advice?

[Steven Chen]

I have the same issue