--- lang/cpp/src/context.h.bak	2017-10-18 12:28:00.898945587 +0200
+++ lang/cpp/src/context.h	2017-10-18 12:28:35.794832395 +0200
@@ -178,10 +178,10 @@
     // Key Export
     //
 
-    GpgME::Error exportPublicKeys(const char *pattern, Data &keyData);
-    GpgME::Error exportPublicKeys(const char *pattern[], Data &keyData);
-    GpgME::Error startPublicKeyExport(const char *pattern, Data &keyData);
-    GpgME::Error startPublicKeyExport(const char *pattern[], Data &keyData);
+    GpgME::Error exportPublicKeys(const char *pattern, Data &keyData, bool minimal=false);
+    GpgME::Error exportPublicKeys(const char *pattern[], Data &keyData, bool minimal=false);
+    GpgME::Error startPublicKeyExport(const char *pattern, Data &keyData, bool minimal=false);
+    GpgME::Error startPublicKeyExport(const char *pattern[], Data &keyData, bool minimal=false);
 
     //
     // Key Import
--- lang/cpp/src/context.cpp.bak	2017-10-18 12:27:50.830978224 +0200
+++ lang/cpp/src/context.cpp	2017-10-18 12:30:13.278515603 +0200
@@ -557,14 +557,14 @@
     }
 }
 
-Error Context::exportPublicKeys(const char *pattern, Data &keyData)
+Error Context::exportPublicKeys(const char *pattern, Data &keyData, bool minimal)
 {
     d->lastop = Private::Export;
     Data::Private *const dp = keyData.impl();
-    return Error(d->lasterr = gpgme_op_export(d->ctx, pattern, 0, dp ? dp->data : nullptr));
+    return Error(d->lasterr = gpgme_op_export(d->ctx, pattern, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : nullptr));
 }
 
-Error Context::exportPublicKeys(const char *patterns[], Data &keyData)
+Error Context::exportPublicKeys(const char *patterns[], Data &keyData, bool minimal)
 {
     d->lastop = Private::Export;
 #ifndef HAVE_GPGME_EXT_KEYLIST_MODE_EXTERNAL_NONBROKEN
@@ -574,17 +574,17 @@
     }
 #endif
     Data::Private *const dp = keyData.impl();
-    return Error(d->lasterr = gpgme_op_export_ext(d->ctx, patterns, 0, dp ? dp->data : nullptr));
+    return Error(d->lasterr = gpgme_op_export_ext(d->ctx, patterns, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : nullptr));
 }
 
-Error Context::startPublicKeyExport(const char *pattern, Data &keyData)
+Error Context::startPublicKeyExport(const char *pattern, Data &keyData, bool minimal)
 {
     d->lastop = Private::Export;
     Data::Private *const dp = keyData.impl();
-    return Error(d->lasterr = gpgme_op_export_start(d->ctx, pattern, 0, dp ? dp->data : nullptr));
+    return Error(d->lasterr = gpgme_op_export_start(d->ctx, pattern, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : nullptr));
 }
 
-Error Context::startPublicKeyExport(const char *patterns[], Data &keyData)
+Error Context::startPublicKeyExport(const char *patterns[], Data &keyData, bool minimal)
 {
     d->lastop = Private::Export;
 #ifndef HAVE_GPGME_EXT_KEYLIST_MODE_EXTERNAL_NONBROKEN
@@ -594,7 +594,7 @@
     }
 #endif
     Data::Private *const dp = keyData.impl();
-    return Error(d->lasterr = gpgme_op_export_ext_start(d->ctx, patterns, 0, dp ? dp->data : nullptr));
+    return Error(d->lasterr = gpgme_op_export_ext_start(d->ctx, patterns, minimal ? GPGME_EXPORT_MODE_MINIMAL : 0, dp ? dp->data : nullptr));
 }
 
 ImportResult Context::importKeys(const Data &data)