diff --git a/mace/dsp/BUILD b/mace/dsp/BUILD
index ca0183822ff2c6313bf8b1f8faa112becb3ef4b3..8deaa99dc6ba867cbf5511bdeec70f7cfd7a7a8e 100644
--- a/mace/dsp/BUILD
+++ b/mace/dsp/BUILD
@@ -24,7 +24,7 @@ cc_library(
         "*.h",
         "hexagon/*.h",
     ]),
-    copts = ["-std=c++11"],
+    copts = ["-std=c++11", "-D_GLIBCXX_USE_C99_MATH_TR1"],
     deps = [
         "//mace/proto:cc_proto",
         "//mace/core:core",
@@ -36,7 +36,7 @@ cc_test(
     name = "dsp_test",
     testonly = 1,
     srcs = glob(["*_test.cc"]),
-    copts = ["-std=c++11"],
+    copts = ["-std=c++11", "-D_GLIBCXX_USE_C99_MATH_TR1"],
     linkopts = if_android([
         "-ldl",
         "-lm",
@@ -52,7 +52,7 @@ cc_test(
     name = "dsp_op_test",
     testonly = 1,
     srcs = glob(["test/*_test.cc"]),
-    copts = ["-std=c++11"],
+    copts = ["-std=c++11", "-D_GLIBCXX_USE_C99_MATH_TR1"],
     linkopts = if_android([
         "-ldl",
         "-lm",
diff --git a/mace/dsp/hexagon_control_wrapper.h b/mace/dsp/hexagon_control_wrapper.h
index 9ef1113f5f18569012b735929989b67d67b3cafc..3fe1b3a7053ecca97f4391ab0c88dee93b53de07 100644
--- a/mace/dsp/hexagon_control_wrapper.h
+++ b/mace/dsp/hexagon_control_wrapper.h
@@ -96,8 +96,8 @@ class HexagonControlWrapper {
     int res = hexagon_nn_execute_new(nn_id_, inputs, num_inputs,
                                      outputs, num_outputs);
 
-    delete(inputs);
-    delete(outputs);
+    delete [] inputs;
+    delete [] outputs;
     return res == 0;
   };
 
diff --git a/mace/dsp/util/BUILD b/mace/dsp/util/BUILD
index 4a75e104fccca2214cd0ffbf014a8c224614d9f4..e5730b285116454ca7c15d5dd08110d3da7c3f42 100644
--- a/mace/dsp/util/BUILD
+++ b/mace/dsp/util/BUILD
@@ -20,7 +20,7 @@ cc_library(
     hdrs = glob([
         "*.h",
     ]),
-    copts = ["-std=c++11"],
+    copts = ["-std=c++11", "-D_GLIBCXX_USE_C99_MATH_TR1"],
     deps = [
         "//mace/core:core",
     ],