Require GPGME version 1.2.0 and drop useless HAVE macros.

GPGME 1.2.0 was released nearly 10 years ago and thus we can really
demand this version.  For various reasons it would be advisable to
require a decent version but that is a different thing and needs to be
done in a separate patch.

HAVE_GPGME_OP_EXPORT_KEYS and HAVE_GPGME_PKA_TRUST are not anymore
needed because they are supported by that GPGME version.

diff --git a/auto.def b/auto.def
index ebd129bb39377cb6e905637c5380abba7c9481a8..3e77fefcc111c0b73a530695cb6306b94e3b03ee 100644 (file)
--- a/auto.def
+++ b/auto.def
@@ -154,7 +154,8 @@ if {1} {
   # Get the value of a macro by preprocessing a header file that defines it
   proc check-define-value {incfile macro} {
     set code "#include \"$incfile\"\n$macro"
-    if {[catch {exec [get-define CC] -xc - -E | tail -1 << $code} out]} {
+    if {[catch {exec [get-define CC] {*}[get-define CFLAGS] -xc - -E | tail -1 << $code} out]} {
+      user-notice $out
       set out ""
     }
     set out
@@ -374,7 +375,24 @@ if {[get-define want-gpgme]} {
                             gpgme.h gpgme_new gpgme]} {
       user-error "Unable to find GPGME"
     }
-    cc-check-functions gpgme_op_export_keys
+    set gpg_ver {}
+    foreach path [list [opt-val with-gpgme $prefix] /usr] {
+      set incfile [file join $path include gpgme.h]
+      if {![file exists $incfile]} {
+        continue
+      }
+      set gpg_ver [check-define-value $incfile GPGME_VERSION_NUMBER]
+      if {$gpg_ver eq {}} {
+        user-error "Unable to find GPGME version number"
+      }
+      set req_ver [format "0x%02x%02x%02x" 1 2 0]
+      if {$req_ver > $gpg_ver} {
+        user-error "Found GPGME version $gpg_ver, need $req_ver"
+      }
+    }
+    if {$gpg_ver eq {}} {
+      user-error "Unable to find GPGME"
+    }
   }
   define CRYPT_BACKEND_GPGME
 }

diff --git a/ncrypt/crypt_gpgme.c b/ncrypt/crypt_gpgme.c
index e06293e2e15b80d8ab56a77aea4b404fd435b182..081d9fa384a696a6c5b2a945e2907d7015c4c81f 100644 (file)
--- a/ncrypt/crypt_gpgme.c
+++ b/ncrypt/crypt_gpgme.c
@@ -4907,7 +4907,6 @@ char *smime_gpgme_find_keys(struct Address *addrlist, bool oppenc_mode)
  */
 struct Body *pgp_gpgme_make_key_attachment(void)
 {
-#ifdef HAVE_GPGME_OP_EXPORT_KEYS
   gpgme_ctx_t context = NULL;
   gpgme_key_t export_keys[2];
   gpgme_data_t keydata = NULL;
@@ -4963,9 +4962,6 @@ bail:
   gpgme_release(context);
 
   return att;
-#else
-  return NULL;
-#endif
 }
 
 /**