Merge pull request #2735 from gongweibao/fixcmake

fix cmake error

.travis.yml

@@ -42,7 +42,7 @@ before_install:
     function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
 script:
   - |
-    timeout 2580 paddle/scripts/travis/${JOB}.sh  # 43min timeout
+    export WITH_GOLANG=ON && timeout 2580 paddle/scripts/travis/${JOB}.sh # 43min timeout
     RESULT=$?; if [ $RESULT -eq 0 ] || [ $RESULT -eq 142 ]; then true; else false; fi;
 notifications:
   email:

go/master/c/CMakeLists.txt

@@ -1 +1 @@
-go_library(paddle_master SHARED)
+go_library(paddle_master SHARED DEPS paddle_go_optimizer)

go/pserver/optimizer.go

@@ -2,7 +2,7 @@ package pserver
 
 // #cgo CFLAGS: -I ../../
 // //FIXME: ldflags contain "build" path
-// #cgo LDFLAGS: ../../build/go/pserver/client/c/libpaddle_go_optimizer.a -lstdc++
+// #cgo LDFLAGS: ../../build/go/pserver/client/c/libpaddle_go_optimizer.a -lstdc++ -lm
 // #include "paddle/optimizer/optimizer.h"
 // #include <stdlib.h>
 // #include <string.h>

paddle/scripts/docker/build.sh

@@ -3,7 +3,7 @@
 set -xe
 
 # Set BASE_IMAGE according to env variables
-if [ ${WITH_GPU} == "ON" ]; then
+if [[ ${WITH_GPU} == "ON" ]]; then
   BASE_IMAGE="nvidia/cuda:8.0-cudnn5-runtime-ubuntu16.04"
 else
   BASE_IMAGE="ubuntu:16.04"