Fix compilation issues on MACOSX

Singed-off-by: Marc Hoffman <Marc.Hoffman@analog.com>
Signed-off-by: Aubrey Li <aubrey.adi@gmail.com>
diff --git a/tools/Makefile b/tools/Makefile
index 6177f90..5e26bd7 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -74,7 +74,7 @@
 ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
 HOST_CFLAGS = -traditional-cpp -Wall
 HOST_LDFLAGS =-multiply_defined suppress
-HOST_ENVIRO_CFLAGS = -traditional-cpp
+HOST_ENVIRO_CFLAGS =
 
 else
 ifeq ($(HOSTOS)-$(HOSTARCH),netbsd-ppc)