diff --git a/lib/gssapi/NTMakefile b/lib/gssapi/NTMakefile
index ec6876d87..a8501b3c6 100644
--- a/lib/gssapi/NTMakefile
+++ b/lib/gssapi/NTMakefile
@@ -409,31 +409,31 @@ GCOPTS=-I$(SRCDIR) -I$(OBJ) -Igssapi -DBUILD_GSSAPI_LIB
 	$(C2OBJ_NP) -Fo$(OBJ)\krb5\ -Fd$(OBJ)\krb5\ -I$(OBJ)\krb5 $(GCOPTS)
 
 {krb5}.c{$(OBJ)\krb5}.obj::
-	$(C2OBJ_NP) -Fo$(OBJ)\krb5\ -Fd$(OBJ)\krb5\ -I$(OBJ)\krb5 $(GCOPTS)
+	$(C2OBJ_NP) -Fo$(OBJ)\krb5\ -Fd$(OBJ)\krb5\ -I$(OBJ)\krb5 $(GCOPTS) -DASN1_LIB
 
 {$(OBJ)\mech}.c{$(OBJ)\mech}.obj::
 	$(C2OBJ_NP) -Fo$(OBJ)\mech\ -Fd$(OBJ)\mech\ -I$(OBJ)\mech $(GCOPTS)
 
 {mech}.c{$(OBJ)\mech}.obj::
-	$(C2OBJ_NP) -Fo$(OBJ)\mech\ -Fd$(OBJ)\mech\ -I$(OBJ)\mech -I$(OBJ)\gssapi $(GCOPTS)
+	$(C2OBJ_NP) -Fo$(OBJ)\mech\ -Fd$(OBJ)\mech\ -I$(OBJ)\mech -I$(OBJ)\gssapi $(GCOPTS) -DASN1_LIB
 
 {$(OBJ)\ntlm}.c{$(OBJ)\ntlm}.obj::
 	$(C2OBJ_NP) -Fo$(OBJ)\ntlm\ -Fd$(OBJ)\ntlm\ -I$(OBJ)\ntlm $(GCOPTS)
 
 {ntlm}.c{$(OBJ)\ntlm}.obj::
-	$(C2OBJ_NP) -Fo$(OBJ)\ntlm\ -Fd$(OBJ)\ntlm\ -I$(OBJ)\ntlm $(GCOPTS)
+	$(C2OBJ_NP) -Fo$(OBJ)\ntlm\ -Fd$(OBJ)\ntlm\ -I$(OBJ)\ntlm $(GCOPTS) -DASN1_LIB
 
 {$(OBJ)\spnego}.c{$(OBJ)\spnego}.obj::
 	$(C2OBJ_NP) -Fo$(OBJ)\spnego\ -Fd$(OBJ)\spnego\ -I$(OBJ)\spnego $(GCOPTS)
 
 {spnego}.c{$(OBJ)\spnego}.obj::
-	$(C2OBJ_NP) -Fo$(OBJ)\spnego\ -Fd$(OBJ)\spnego\ -I$(OBJ)\spnego -Imech $(GCOPTS)
+	$(C2OBJ_NP) -Fo$(OBJ)\spnego\ -Fd$(OBJ)\spnego\ -I$(OBJ)\spnego -Imech $(GCOPTS) -DASN1_LIB
 
 {$(OBJ)\gssapi}.c{$(OBJ)\gssapi}.obj::
 	$(C2OBJ_NP) -Fo$(OBJ)\gssapi\ -Fd$(OBJ)\gssapi\ -I$(OBJ)\gssapi $(GCOPTS)
 
 {}.c{$(OBJ)}.obj::
-	$(C2OBJ_P) $(GCOPTS)
+	$(C2OBJ_P) $(GCOPTS) -DASN1_LIB
 
 {$(OBJ)}.c{$(OBJ)}.obj::
 	$(C2OBJ_P) $(GCOPTS)
diff --git a/lib/hdb/NTMakefile b/lib/hdb/NTMakefile
index 6addf864c..86500fa45 100644
--- a/lib/hdb/NTMakefile
+++ b/lib/hdb/NTMakefile
@@ -190,7 +190,7 @@ openldap_inc_flag=
 hdb_cflags=$(openldap_inc_flag) -I$(OBJ)
 
 {}.c{$(OBJ)}.obj::
-	$(C2OBJ_P) $(hdb_cflags)
+	$(C2OBJ_P) $(hdb_cflags) -DASN1_LIB
 
 {$(OBJ)}.c{$(OBJ)}.obj::
 	$(C2OBJ_P) $(hdb_cflags)
diff --git a/lib/hx509/NTMakefile b/lib/hx509/NTMakefile
index 24d696cc0..9e1bbf935 100644
--- a/lib/hx509/NTMakefile
+++ b/lib/hx509/NTMakefile
@@ -30,7 +30,8 @@
 # 
 
 RELDIR=lib\hx509
-intcflags=-DASN1_LIB
+intcflags=-I$(SRCDIR)\ref -I$(OBJ)
+localcflags=-DASN1_LIB
 
 !include ../../windows/NTMakefile.w32