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+This is the README from the source distribution of GHDL.
+
+To get the binary distribution or more information, go to http://ghdl.free.fr
+
+Copyright:
+**********
+GHDL is copyright (c) 2002, 2003, 2004, 2005 Tristan Gingold.
+See the GHDL manual for more details.
+
+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 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.
+
+
+Building GHDL from sources:
+***************************
+
+Required:
+* the sources of @GCCVERSION@ (at least the core part).
+ Note: other versions of gcc sources have not been tested.
+* the Ada95 GNAT compiler (only GNAT v3.15p is known to work).
+* GNU/Linux for ix86 (pc systems) (porting is necessary for other systems)
+
+Procedure:
+* untar the gcc tarball
+* untar the ghdl tarball (this sould have been done, since you are reading a
+ file from it).
+* move or copy the vhdl directory of ghdl into the gcc subdirectory of
+ the gcc distribution.
+ You should have a @GCCVERSION@/gcc/vhdl directory.
+* configure gcc with the --enable-languages=vhdl option. You may of course
+ add other languages.
+ Refer to the gcc installation documentation.
+* compile gcc.
+ 'make CFLAGS="-O"' is OK (gcc 2.8.1 bugs with -O2 on some files).
+* install gcc. This installs the ghdl driver too.
+ 'make install' is OK.
+
+Send bugs and comments to ghdl@free.fr.
+If you cannot compile, please report the gcc version, GNAT version and gcc
+source version.
+
+Tristan Gingold.