master 9377a3c889: Fix build with older versions of gnutls

[Andreas Schwab]

branch: master
commit 9377a3c889aa3b178a11a3b849c3d1665da096d6
Author: Andreas Schwab <schwab@linux-m68k.org>
Commit: Andreas Schwab <schwab@linux-m68k.org>

    Fix build with older versions of gnutls
    
    * src/gnutls.c (key_file2_aux): Use GNUTLS_PKCS_* constants only
    if defined.
---
 src/gnutls.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/gnutls.c b/src/gnutls.c
index 40a0da6c70..8320c928a4 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -1804,24 +1804,40 @@ key_file2_aux (Lisp_Object flags)
       Lisp_Object flag = XCAR (tail);
       if (EQ (flag, Qgnutls_pkcs_plain))
        rv |= GNUTLS_PKCS_PLAIN;
+#ifdef GNUTLS_PKCS_PKCS12_3DES
       else if (EQ (flag, Qgnutls_pkcs_pkcs12_3des))
        rv |= GNUTLS_PKCS_PKCS12_3DES;
+#endif
+#ifdef GNUTLS_PKCS_PKCS12_ARCFOUR
       else if (EQ (flag, Qgnutls_pkcs_pkcs12_arcfour))
        rv |= GNUTLS_PKCS_PKCS12_ARCFOUR;
+#endif
+#ifdef GNUTLS_PKCS_PKCS12_RC2_40
       else if (EQ (flag, Qgnutls_pkcs_pkcs12_rc2_40))
        rv |= GNUTLS_PKCS_PKCS12_RC2_40;
+#endif
+#ifdef GNUTLS_PKCS_PBES2_3DES
       else if (EQ (flag, Qgnutls_pkcs_pbes2_3des))
        rv |= GNUTLS_PKCS_PBES2_3DES;
+#endif
+#ifdef GNUTLS_PKCS_PBES2_AES_128
       else if (EQ (flag, Qgnutls_pkcs_pbes2_aes_128))
        rv |= GNUTLS_PKCS_PBES2_AES_128;
+#endif
+#ifdef GNUTLS_PKCS_PBES2_AES_192
       else if (EQ (flag, Qgnutls_pkcs_pbes2_aes_192))
        rv |= GNUTLS_PKCS_PBES2_AES_192;
+#endif
+#ifdef GNUTLS_PKCS_PBES2_AES_256
       else if (EQ (flag, Qgnutls_pkcs_pbes2_aes_256))
        rv |= GNUTLS_PKCS_PBES2_AES_256;
+#endif
       else if (EQ (flag, Qgnutls_pkcs_null_password))
        rv |= GNUTLS_PKCS_NULL_PASSWORD;
+#ifdef GNUTLS_PKCS_PBES2_DES
       else if (EQ (flag, Qgnutls_pkcs_pbes2_des))
        rv |= GNUTLS_PKCS_PBES2_DES;
+#endif
 #ifdef GNUTLS_PKCS_PBES1_DES_MD5
       else if (EQ (flag, Qgnutls_pkcs_pbes1_des_md5))
        rv |= GNUTLS_PKCS_PBES1_DES_MD5;