OT: Help with compiling gphoto 2.4

[Andrew Robinson]

I'm trying to build gphoto 2.4 from source. However, when I run 
'configure', it says it cannot link to the libltdl. As I illustrate 
below, I have the rpm installed. I am hoping someone can point out what 
I'm doing wrong.

Thanks!

Andrew Robinson

[root at orpheus libgphoto2-2.4.0]# ./configure
...
checking ltdl.h usability... no
checking ltdl.h presence... no
checking for ltdl.h... no
checking that we can compile and link with libltdl... no
configure: error: cannot compile and link against libltdl
libgphoto2 requires libltdl (the libtool dl* library),
but cannot compile and link against it.
Aborting.

[root at orpheus libgphoto2-2.4.0]# rpm -qa | grep libtool
libtool-1.5.22-11.fc7
libtool-ltdl-1.5.22-11.fc7

[root at orpheus libgphoto2-2.4.0]# rpm -ql libtool-ltdl-1.5.22-11.fc7
/usr/lib/libltdl.so.3
/usr/lib/libltdl.so.3.1.4
/usr/share/doc/libtool-ltdl-1.5.22
/usr/share/doc/libtool-ltdl-1.5.22/COPYING.LIB
/usr/share/doc/libtool-ltdl-1.5.22/README