#233 Out-of-source-tree builds fail

[Raphael Neider]

Using gputils r681, building from source in a separate build directory fails, as gpasm.h.in (and later several other .h.in files) are not found.

To reproduce, issue the following commands in the source directory of gputils (next to ChangeLog):
$ mkdir build
$ cd build
$ ../configure --prefix=$HOME/local
$ make

The attached file fixes this, by having make locate the input files.
Apply next to ChangeLog via
patch -p0 < fix-out-of-tree-builds.patch

[Raphael Neider]

Fix/patch against r681.

[Borut Ražem]

Patch applied in svn revision #687.

Borut