diff --git a/BSDmakefile b/BSDmakefile
index b537444..5e2dc21 100644
--- a/BSDmakefile
+++ b/BSDmakefile
@@ -4,6 +4,7 @@
 .include "include.mk"
 
 GITTEST  != git describe --always 2>/dev/null
+VALTEST  != valgrind --version 2>/dev/null
 GITINFO  :=
 
 .if $(GITTEST)
@@ -34,6 +35,11 @@ CFLAGS   +=  -Wall -Wextra -Werror -Wstrict-aliasing
 .    endif
 .endif
 
+.if !$(VALTEST)
+    CFLAGS += -DNVALGRIND
+.endif
+
+
 CFLAGS += -DGMQCC_GITINFO=\"$(GITINFO)\" $(OPTIONAL)
 DEPS != for i in $(OBJ_C) $(OBJ_P) $(OBJ_T) $(OBJ_X); do echo $$i; done | sort | uniq
 
diff --git a/Makefile b/Makefile
index c174b91..7f9a3b1 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,11 @@ else
 endif
 
 ifneq ($(shell git describe --always 2>/dev/null),)
-    CFLAGS += -DGMQCC_GITINFO="\"$(shell git describe --always)\""
+	CFLAGS += -DGMQCC_GITINFO="\"$(shell git describe --always)\""
+endif
+
+ifeq ($(shell valgrind --version 2>/dev/null),)
+	CFLAGS += -DNVALGRIND
 endif
 
 # do this last otherwise there is whitespace in the command output and