Implement symbol visibility.

* configure.ac: New option --enable-ld-version-script.
(GPGRT_USE_VISIBILITY): New ac_define.
(HAVE_LD_VERSION_SCRIPT): New am_conditional.
* src/gpg-error.vers: New.
* src/gpgrt-int.h: New.
* src/visibility.c, src/visibility.h: New.  Lot of changes to symbold
names.
--

This is only doe for the old API.  The estream API needs to be added.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/gpg-error.vers b/src/gpg-error.vers
new file mode 100644
index 0000000..8e67081
--- /dev/null
+++ b/src/gpg-error.vers
@@ -0,0 +1,42 @@
+# libgpg-error.vers - What symbols to export              -*- std -*-
+# Copyright (C) 2014 g10 Code GmbH
+#
+# This file is part of libgpg-error.
+#
+# libgpg-error is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 2.1 of the
+# License, or (at your option) any later version.
+#
+# libgpg-error is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# NOTE: When adding new functions, please make sure to add them to
+#       visibility.h and gpg-error.def.in as well.
+
+
+GPG_ERROR_1.0 {
+  global:
+    gpg_strerror;
+    gpg_strerror_r;
+    gpg_strsource;
+    gpg_err_code_from_errno;
+    gpg_err_code_to_errno;
+    gpg_err_code_from_syserror;
+    gpg_err_set_errno;
+    gpg_error_check_version;
+
+    gpgrt_lock_init;
+    gpgrt_lock_lock;
+    gpgrt_lock_unlock;
+    gpgrt_lock_destroy;
+    gpgrt_yield;
+
+  local:
+    *;
+};