Build fixes, mostly for old systems and compilers.

- Add a config check for ((constructor)) and ((destructor)) funciton
  attributes.
- Add missing GL/glxmd.h header.
- For sufficiently old gcc versions, revert to inline asm
  implementations of Atomic{Increment,Swap,CompareAndSwap}()
- Add a local implementation of asprintf.
- entry_x86_tsd.h: Add missing cast to (char *) in entry_get_public
- glvnd_pthread.[ch]: Only use pthread_rwlock_t if it's available, and fall
  back to pthread_mutex_t otherwise.
- trace.c: Add missing _GNU_SOURCE define
- uthash.h: Fix a -Wcast-qual warning
- x11glvndclient.c: Fix a -Wcast-qual warning by using a writable
  array for storing the XGLV_EXTENSION_NAME

Based on a patch by Brian Nguyen.

1 files changed, 54 insertions, 0 deletions

diff --git a/include/GL/glxmd.h b/include/GL/glxmd.h
new file mode 100644
index 0000000..96c07db
--- /dev/null
+++ b/include/GL/glxmd.h
@@ -0,0 +1,54 @@
+#ifndef _GLX_glxmd_h_
+#define _GLX_glxmd_h_
+
+
+/*
+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice including the dates of first publication and
+ * either this permission notice or a reference to
+ * http://oss.sgi.com/projects/FreeB/
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Silicon Graphics, Inc.
+ * shall not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization from
+ * Silicon Graphics, Inc.
+ */
+
+/*
+** Machine dependent declarations.
+*/
+
+/*
+** Define floating point wire types.  These are in IEEE format on the wire.
+*/
+typedef float FLOAT32;
+typedef double FLOAT64;
+
+/*
+** Like B32, but this is used to store floats in a request.
+**
+** NOTE: Machines that have a native 32-bit IEEE float can define this as 
+**       nothing.  Machines that don't might mimic the float with an integer,
+**       and then define this to :32.
+*/
+#define F32
+
+#endif /* _GLX_glxmd_h_ */