New Autoheader scripts to create a better config.h

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@206

acinclude.m4

@@ -159,3 +159,31 @@ int main (int argc, char *argv[])
   AC_SUBST(SDL_LIBS)
   rm -f conf.sdltest
 ])
+
+AH_TOP([
+/*
+ *  Copyright (C) 2002  The DOSBox Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+])
+AH_BOTTOM([#define INLINE inline])
+AH_BOTTOM([
+#if C_HAS_ATTRIBUTE
+#define GCC_ATTRIBUTE __attribute__
+#else
+#define GCC_ATTRIBUTE(x) /* attribute not supported */
+#endif
+})