Conflict between dynamic and static glog linkages in OS-X

[shilad]

When I build, for example, linear, the very last step is the following:

g++-4.9 -ggdb -O3 -ggdb -Wall -std=c++11 -I./ -I../ -I../../repo/ps-lite/src -I../../repo/dmlc-core/include 
    -I../../repo/dmlc-core/src -I/dir/Projects/wormhole/deps/include -fPIC -DDMLC_USE_HDFS=0 
    -DDMLC_USE_S3=0 -DDMLC_USE_GLOG=1 -DDMLC_USE_AZURE=0  
     build/config.pb.o build/linear.o ../../repo/dmlc-core/libdmlc.a ../../repo/ps-lite/build/libps.a 
    -lglog /dir/Projects/wormhole/deps/lib/libprotobuf.a /dir/Projects/wormhole/deps/lib/libglog.a
    /dir/Projects/wormhole/deps/lib/libgflags.a /dir/Projects/wormhole/deps/lib/libzmq.a 
    /dir/Projects/wormhole/deps/lib/libcityhash.a /dir/Projects/wormhole/deps/lib/liblz4.a  
    -o build/linear.dmlc

Notice both the inclusion of -lglog (the only shared lib) and libglog.a. This triggers a segfault, as described in google/glog#53.

Manually removing the shared lib in the last step fixes the problem, but I'm not sure how to properly address this.

[shilad]

Commenting out the update to DMLC_LDFLAGS in line 73 of dmlc.mk in dmlc-core seems to fix this, but that doesn't seem like the correct solution.

[brickerino]

Commenting out the update to DMLC_LDFLAGS in line 73 of dmlc.mk in dmlc-core seems to fix this, but that doesn't seem like the correct solution.

So, what causes your hesitation exactly? Your should link only one version of library. I think this is just a mistake in make file and doesn't bear deep meaning.

[shilad]

I'm worried because the makefile is part of dmlc-core and it is used by other projects. A fix for wormhole may result in some other broken project.

[mli]

my suggestion is just removing -lglog. the new version of ps-lite doesn't need glog anymore, but i didn't update wormhole yet.

@shilad we are realized that putting all applications in a single repo doesn't work if we want to do one really well. so we plan to create a repo for each algorithm we think it's important, currently i'm working moving linear and fm into dmlc/difacto. is it possible for you to make a repo dmcl/word2vec?