diff -up libsrtp-2.3.0/crypto/include/aes_gcm.h.nssfix libsrtp-2.3.0/crypto/include/aes_gcm.h
--- libsrtp-2.3.0/crypto/include/aes_gcm.h.nssfix	2021-04-15 13:47:08.667150587 -0400
+++ libsrtp-2.3.0/crypto/include/aes_gcm.h	2021-04-15 13:47:26.991294515 -0400
@@ -66,6 +66,8 @@ typedef struct {
 
 #ifdef NSS
 
+#define NSS_PKCS11_2_0_COMPAT 1
+
 #include <nss.h>
 #include <pk11pub.h>
 
diff -up libsrtp-2.3.0/crypto/include/aes_icm_ext.h.nssfix libsrtp-2.3.0/crypto/include/aes_icm_ext.h
--- libsrtp-2.3.0/crypto/include/aes_icm_ext.h.nssfix	2021-04-15 13:47:36.617370124 -0400
+++ libsrtp-2.3.0/crypto/include/aes_icm_ext.h	2021-04-15 13:59:50.074073286 -0400
@@ -65,6 +65,8 @@ typedef struct {
 
 #ifdef NSS
 
+#define NSS_PKCS11_2_0_COMPAT 1
+
 #include <nss.h>
 #include <pk11pub.h>