diff --git a/make/defs.mk b/make/defs.mk
index f8b432b2..33033137 100644
--- a/make/defs.mk
+++ b/make/defs.mk
@@ -123,6 +123,7 @@ ifeq ($(DEVELOPMENT),true)
   endif
   export G_SLICE=always-malloc
   export G_DEBUG=gc-friendly,resident-modules
+  export MALLOC_CHECK_=2
 else
   -include $(MODDIR)/make/defs-dist.mk
   ifneq ($(wildcard $(TOPDIR)/make/cfg_dist.mk),)
@@ -136,7 +137,7 @@ BUILD_CPPFLAGS        += $(CPPFLAGS)
 BUILD_LDFLAGS         += $(LDFLAGS)
 
 BUILD_CFLAGS          += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -fexceptions -DPROJECT_STR=\"$(PROJECT)\"
-BUILD_CPPFLAGS        += -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -Wno-deprecated -DPROJECT_STR=\"$(PROJECT)\"
+BUILD_CPPFLAGS        += -std=c++11 -D_FILE_OFFSET_BITS=64 -Wall -Wno-unused-value -Wno-deprecated -DPROJECT_STR=\"$(PROJECT)\"
 BUILD_LDFLAGS         += -Wall
 
 ifneq ($(LOG_QUAL_PREFIX),)