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authorThierry Reding2014-02-19 08:56:50 -0600
committerThierry Reding2014-07-30 09:58:14 -0500
commit5d8357976a84396ebe10ed5a0d6ba1b79ccdcf2e (patch)
tree5986dd94ff3b108a5aa9fd7fdb51f9656200ed7e /libdrm.h
parentd6861609b2b887612d652bb2be7c39f199802937 (diff)
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configure: Support symbol visibility when available
Checks whether or not the compiler supports the -fvisibility option. If so it sets the VISIBILITY_CFLAGS variable which can be added to the per directory AM_CFLAGS where appropriate. By default all symbols will be hidden via the VISIBILITY_CFLAGS. The drm_public macro can be used to mark symbols that should be exported. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'libdrm.h')
-rw-r--r--libdrm.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/libdrm.h b/libdrm.h
new file mode 100644
index 00000000..23926e6f
--- /dev/null
+++ b/libdrm.h
@@ -0,0 +1,34 @@
1/*
2 * Copyright © 2014 NVIDIA Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23#ifndef LIBDRM_LIBDRM_H
24#define LIBDRM_LIBDRM_H
25
26#if defined(HAVE_VISIBILITY)
27# define drm_private __attribute__((visibility("hidden")))
28# define drm_public __attribute__((visibility("default")))
29#else
30# define drm_private
31# define drm_public
32#endif
33
34#endif