bug report while installing GTK+ 2.2.3

[KC Braunschweig]

I got the following will configuring GTK+ 2.2.3 to compile on Solaris 2.6.

checking whether dynamic modules work... yes
checking for TIFFReadScanline in -ltiff... yes
checking tiffio.h usability... yes
checking tiffio.h presence... no
configure: WARNING: tiffio.h: accepted by the compiler, rejected by the
preprocessor!
configure: WARNING: tiffio.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for tiffio.h... no
configure: WARNING: *** TIFF loader will not be built (TIFF header files not
found) ***
configure: error:
*** Checks for TIFF loader failed. You can build without it by passing
*** --without-libtiff to configure but some programs using GTK+ may
*** not work properly

Here is what I did (among other attempts) to try to get it to find 
libtiff. Note that I have libtiff 3.5.4 installed and the library and 
header files it is looking for are present.

address@hidden gtk+-2.2.3]$ echo $LD_LIBRARY_PATH
/usr/usc/gnu/glib/2.0-default/lib:/usr/usc/gnu/atk/1.0-default/lib:/usr/usc/gnu/pango/1.0-default/lib:/usr/usc/tiff/default/lib
address@hidden gtk+-2.2.3]$ echo $LD_RUN_PATH
/usr/usc/gnu/glib/2.0-default/lib:/usr/usc/gnu/atk/1.0-default/lib:/usr/usc/gnu/pango/1.0-default/lib:/usr/usc/tiff/default/lib
address@hidden gtk+-2.2.3]$ CFLAGS="-I/usr/usc/tiff/default/include" 
./configure --prefix=/usr/usc/gnu/gtk+/2.2.3

Any input on this error would be appreciated.

Thanks,

KC Braunschweig
Information Services Division
University of Southern California