Fix docker bazel build

mace/examples/BUILD

@@ -6,20 +6,23 @@ cc_binary(
     srcs = [
         "helloworld.cc",
     ],
-    copts = ["-std=c++11"],
     deps = [
         "//mace/core",
         "//mace/ops",
     ],
+    copts = ["-std=c++11"],
+    linkopts = if_android(["-ldl"]),
 )
 
 cc_test(
     name = "benchmark_example",
     srcs = ["benchmark_example.cc"],
-    copts = ["-std=c++11"],
-    linkstatic = 1,
     deps = [
         "//mace/core",
         "//mace/core:test_benchmark_main",
     ],
+    copts = ["-std=c++11"],
+    linkopts = if_android(["-ldl"]),
+    linkstatic = 1,
+    testonly = 1,
 )

mace/kernels/BUILD

@@ -18,9 +18,7 @@ cc_library(
         "//mace/core:core",
     ],
     copts = ['-std=c++11'],
-    linkopts = ["-fopenmp"] + if_android([
-        "-lm",
-        ]),
+    linkopts = ["-fopenmp"] + if_android(["-lm"]),
 )
 
 cc_test(
@@ -32,9 +30,7 @@ cc_test(
         "//mace/core:core",
     ],
     copts = ['-std=c++11'],
-    linkopts = if_android([
-        "-pie",
-        ]),
+    linkopts = if_android(["-pie"]),
     linkstatic = 1,
     testonly = 1,
 )

mace/ops/BUILD

@@ -31,12 +31,12 @@ cc_library(
         ["*.h"],
         exclude = ["ops_test_util.h"],
     ),
-    copts = ["-std=c++11"],
     deps = [
         "//mace/core",
         "//mace/kernels",
         "//mace/proto:cc_proto",
     ],
+    copts = ["-std=c++11"],
     alwayslink = 1,
 )
 
@@ -45,13 +45,15 @@ cc_test(
     srcs = glob(
         ["*_test.cc"],
     ),
-    copts = ["-std=c++11"],
-    linkstatic = 1,
     deps = [
         ":ops",
         ":test",
         "@gtest//:gtest_main",
     ],
+    copts = ["-std=c++11"],
+    linkopts = if_android(["-ldl"]),
+    linkstatic = 1,
+    testonly = 1,
 )
 
 cc_test(
@@ -64,6 +66,7 @@ cc_test(
         "//mace/core:test_benchmark_main",
     ],
     copts = ['-std=c++11'],
+    linkopts = if_android(["-ldl"]),
     linkstatic = 1,
     testonly = 1,
 )