diff -up tbb44_20151115oss/build/linux.gcc.inc\~ tbb44_20151115oss/build/linux.gcc.inc
--- tbb44_20151115oss/build/linux.gcc.inc~	2015-11-25 03:48:43.000000000 -0700
+++ tbb44_20151115oss/build/linux.gcc.inc	2016-01-14 20:02:13.829449849 -0700
@@ -54,10 +54,10 @@ ifneq (,$(shell gcc -dumpversion | egrep
 endif
 
 ifeq ($(cfg), release)
-        CPLUS_FLAGS = $(ITT_NOTIFY) -g -O2 -DUSE_PTHREAD
+        CPLUS_FLAGS = $(CXXFLAGS) $(ITT_NOTIFY) -g -O2 -DUSE_PTHREAD
 endif
 ifeq ($(cfg), debug)
-        CPLUS_FLAGS = -DTBB_USE_DEBUG $(ITT_NOTIFY) -g -O0 -DUSE_PTHREAD
+        CPLUS_FLAGS = $(CXXFLAGS) -DTBB_USE_DEBUG $(ITT_NOTIFY) -g -O0 -DUSE_PTHREAD
 endif
 
 ifneq (00,$(lambdas)$(cpp0x))
diff -up tbb44_20151115oss/build/Makefile.tbbmalloc\~ tbb44_20151115oss/build/Makefile.tbbmalloc
--- tbb44_20151115oss/build/Makefile.tbbmalloc~	2015-11-25 03:48:44.000000000 -0700
+++ tbb44_20151115oss/build/Makefile.tbbmalloc	2016-01-14 20:20:49.514774850 -0700
@@ -51,7 +51,7 @@ ORIG_LINK_MALLOC.LIB:=$(LINK_MALLOC.LIB)
 MALLOC_CPLUS.OBJ = backend.$(OBJ) large_objects.$(OBJ) backref.$(OBJ)  tbbmalloc.$(OBJ)
 MALLOC.OBJ := $(MALLOC_CPLUS.OBJ) $(MALLOC_ASM.OBJ) itt_notify_malloc.$(OBJ) frontend.$(OBJ)
 PROXY.OBJ := proxy.$(OBJ) tbb_function_replacement.$(OBJ)
-M_CPLUS_FLAGS := $(subst $(WARNING_KEY),,$(M_CPLUS_FLAGS)) $(DEFINE_KEY)__TBBMALLOC_BUILD=1
+M_CPLUS_FLAGS := $(subst $(WARNING_KEY),,$(M_CPLUS_FLAGS)) $(CXXFLAGS) $(DEFINE_KEY)__TBBMALLOC_BUILD=1
 M_INCLUDES := $(INCLUDES) $(INCLUDE_KEY)$(MALLOC_ROOT) $(INCLUDE_KEY)$(MALLOC_SOURCE_ROOT)
 
 # Suppress superfluous warnings for TBBMalloc compilation

Diff finished.  Thu Jan 14 20:22:27 2016