Something

checking for /usr/X11R6/lib64... no
checking for /usr/X11R6/lib... no
checking for XftFontOpen in -lXft... no
checking for XextCreateExtension in -lXext... yes
checking for XOpenDisplay in -lX11... yes
checking for TIFFOpen in -ltiff... no
configure: error: "Can't build without libtiff"
openpbx spandsp-0.0.3 $ set | grep LD
LDFLAGS='-L/usr/sfw/lib -R/usr/sfw/lib -L/opt/sfw/lib -R/opt/sfw/lib -L/usr/openwin/lib -R/usr/openwin/lib:/opt/csw/lib'
OLDPWD=/disk1/homedirs/openpbx
openpbx spandsp-0.0.3 $ ls -al /opt/csw/lib/libtiff*
-rwxr-xr-x   1 root     bin          986 Sep  6 10:41 /opt/csw/lib/libtiff.la
lrwxrwxrwx   1 root     other         16 Sep 19 19:03 /opt/csw/lib/libtiff.so -> libtiff.so.3.8.2
lrwxrwxrwx   1 root     other         16 Sep 19 19:03 /opt/csw/lib/libtiff.so.3 -> libtiff.so.3.8.2
-rwxr-xr-x   1 root     bin       410180 Sep  6 10:44 /opt/csw/lib/libtiff.so.3.8.2
-rwxr-xr-x   1 root     bin         1022 Sep  6 10:41 /opt/csw/lib/libtiffxx.la
lrwxrwxrwx   1 root     other         18 Sep 19 19:03 /opt/csw/lib/libtiffxx.so -> libtiffxx.so.3.8.2
lrwxrwxrwx   1 root     other         18 Sep 19 19:03 /opt/csw/lib/libtiffxx.so.3 -> libtiffxx.so.3.8.2
-rwxr-xr-x   1 root     bin        11836 Sep  6 10:44 /opt/csw/lib/libtiffxx.so.3.8.2
openpbx spandsp-0.0.3 $