[FWTools] FWTools and autoconf

[Michael Behrisch]

Hello,
I tried to use autoconf to check for the GDAL-library and wanted
to use the AC_CHECK_LIB macro which works well if I compile
GDAL by myself but if I use the FWTools package I get in trouble
with the libraries libgdal depends on. It is neither sufficient
to supply the output of gdal-config --dep-libs as an additional
parameter to the AC_CHECK_LIB call (because some of the libraries
mentioned there are not inside the FWTools package, for instance
-lltidsdk) nor did the simple inclusion of all libraries which
are in the FWTools/lib directory work (complains about libpng
being the wrong version). On the other hand if I disable the
autoconf check and just link with the gdal library coming with
the FWTools it works fine.
Any ideas how to check correctly?

Yours,
Michael