gd2 2.0.35 build error

[mf2k (Frank Schima)]

I'm attempting to install gd2, but I see the following build error:

$ sudo port install gd2
--->  Fetching gd2
--->  Attempting to fetch gd-2.0.35.tar.bz2 from http://distfiles.macports.org/gd2
--->  Verifying checksum(s) for gd2
--->  Extracting gd2
--->  Applying patches to gd2
--->  Configuring gd2
--->  Building gd2
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_mports_trunk_dports_graphics_gd2/work/gd-2.0.35" && make all " returned error 2
Command output: make  all-recursive
Making all in config
make[2]: Nothing to be done for `all'.
Making all in test
make[2]: Nothing to be done for `all'.
/bin/sh ./libtool --tag=CC   --mode=compile /usr/bin/gcc-4.0 -DHAVE_CONFIG_H -I.   -I/opt/local/include/freetype2 -I/opt/local/include -I/opt/local/include -I/usr/X11/include  -O2 -MT gd.lo -MD -MP -MF .deps/gd.Tpo -c -o gd.lo gd.c
./libtool: line 838: X--tag=CC: command not found
./libtool: line 871: libtool: ignoring unknown tag : command not found
./libtool: line 838: X--mode=compile: command not found
./libtool: line 1004: *** Warning: inferring the mode of operation is deprecated.: command not found
./libtool: line 1005: *** Future versions of Libtool will require --mode=MODE be specified.: command not found
./libtool: line 1035: libtool: warning: cannot infer operation mode from `/usr/bin/gcc-4.0': No such file or directory
./libtool: line 7122: libtool: you must specify a MODE: command not found
./libtool: line 7123: Try `libtool --help' for more information.: command not found
make[2]: *** [gd.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Error: Status 1 encountered during processing.
]}}

Mac OS X 10.5.6. Intel. Xcode 3.1.2. XQuartz 2.3.1.