- Use gitinfo.h instead of svnrevision.h for versioning.

- Use functions in gitinfo.cpp to retrieve the strings from gitinfo.h so
  that changes to gitinfo.h only require recompiling one file instead of
  several.

src/gitinfo.cpp

@@ -0,0 +1,65 @@
+/*
+** gitinfo.cpp
+** Returns strings from gitinfo.h.
+**
+**---------------------------------------------------------------------------
+** Copyright 2013 Randy Heit
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+** This file is just here so that when gitinfo.h changes, only one source
+** file needs to be recompiled.
+*/
+
+#include "gitinfo.h"
+#include "version.h"
+
+const char *GetGitDescription()
+{
+	return GIT_DESCRIPTION;
+}
+
+const char *GetGitHash()
+{
+	return GIT_HASH;
+}
+
+const char *GetGitTime()
+{
+	return GIT_TIME;
+}
+
+const char *GetVersionString()
+{
+	if (GetGitDescription()[0] == '\0')
+	{
+		return VERSIONSTR;
+	}
+	else
+	{
+		return GIT_DESCRIPTION;
+	}
+}