allheaders.h accepted by the compiler, rejected by the preprocessor!

[Michael Moore]

I'm trying to build OCRopus, I checkedout the code form mercurial last night.

it comes down to this:

./configure --prefix=/home/stuporgl/www/bookscanned/prog/
--with-tesseract=/home/stuporgl/www/bookscanned/prog/
--with-iulib=/home/stuporgl/www/bookscanned/prog/
leptheaders=/home/stuporgl/www/bookscanned/prog/include/liblept/
...
checking /home/stuporgl/www/bookscanned/prog/include/liblept//allheaders.h
usability... yes
checking /home/stuporgl/www/bookscanned/prog/include/liblept//allheaders.h
presence... no
configure: WARNING:
/home/stuporgl/www/bookscanned/prog/include/liblept//allheaders.h:
accepted by the compiler, rejected by the preprocessor!
configure: WARNING:
/home/stuporgl/www/bookscanned/prog/include/liblept//allheaders.h:
proceeding with the compiler's result
checking for /home/stuporgl/www/bookscanned/prog/include/liblept//allheaders.h...
yes
checking for pixCreate in -llept... no
configure: error: leptonica not found! Choose --without-leptonica if
you don't want to use it.

How can I find out why the preprocessor rejected it? Is there a known
workaround?

Thank you,
--
Michael Moore
-------------------------
Share your families' genealogy and family history books. It's easy and
free : http://bookscanned.com

[Thomas Breuel]

I'm not sure what the problem is (or what platform you're building
on). The autoconf files may need some tender care, in particular if
you're trying to use non-standard paths. Please contribute a fix if
you come up with one.

We're primarily developing with scons on Ubuntu 9.04, so if you're on
Ubuntu 9.04, that's your best bet.

Tom