diff -urp tbb20_20070927oss_src/build/linux.gcc.inc tbb20_20070927oss_src.pm/build/linux.gcc.inc
--- tbb20_20070927oss_src/build/linux.gcc.inc	2007-09-28 22:13:21.000000000 +0200
+++ tbb20_20070927oss_src.pm/build/linux.gcc.inc	2007-12-19 16:56:13.000000000 +0100
@@ -45,10 +45,10 @@ LIBS = -lpthread -lrt -ldl 
 C_FLAGS = $(CPLUS_FLAGS) -x c
 
 ifeq ($(cfg), release)
-        CPLUS_FLAGS = -DDO_ITT_NOTIFY -O2 -DUSE_PTHREAD
+        CPLUS_FLAGS = $(CXXFLAGS) -DDO_ITT_NOTIFY -DUSE_PTHREAD
 endif
 ifeq ($(cfg), debug)
-        CPLUS_FLAGS = -DTBB_DO_ASSERT -DDO_ITT_NOTIFY -g -O0 -DUSE_PTHREAD
+        CPLUS_FLAGS = $(CXXFLAGS) -DTBB_DO_ASSERT -DDO_ITT_NOTIFY -DUSE_PTHREAD -g -O0
 endif
 
 ASM=