grads version 2.0.a8-2 failed to build on i386

grads version 2.0.a8-2 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2394571

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2394571/+files/buildlog_ubuntu-natty-i386.grads_2.0.a8-2_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1576 lines into the build log:

gauser.c:2354:7: warning: format '%ld' expects type 'long int', but argument 4 has type 'size_t'
gauser.c:2354:7: warning: format '%ld' expects type 'long int', but argument 4 has type 'size_t'
gauser.c:2430:3: warning: format '%ld' expects type 'long int', but argument 4 has type 'size_t'
gauser.c:2430:3: warning: format '%ld' expects type 'long int', but argument 4 has type 'size_t'
gauser.c: In function 'gacmd':
gauser.c:129:11: warning: ignoring return value of 'system', declared with attribute warn_unused_result
gcc -DHAVE_CONFIG_H -I. -I/usr/include/ -I/usr/include/gd -I/usr/include/grib2c -I/usr/include/udunits -I/usr/include/netcdf -I/usr/include/hdf5 -I/usr/include/hdf -g -O2 -rdynamic -c gasdf.c
gcc -g -O2 -rdynamic -Wl,-Bsymbolic-functions -Wl,--as-needed -o grads grads.o gxsubs.o gxmeta.o gxchpl.o gxcntr.o gxstrm.o gxwmap.o gxshad.o gaexpr.o gafunc.o gautil.o gagx.o gscrpt.o gamach.o bufrstn.o gabufr.o gabufrtbl.o gxX.o gxdxwd.o galloc.o gaddes.o gaio.o gacfg.o gauser.o gasdf.o -L/usr/lib -lX11 /usr/lib/libreadline.so /usr/lib/libncurses.so /usr/lib/libgd.so /usr/lib/libpng12.so /usr/lib/libz.so /usr/lib/libjpeg.so /usr/lib/libgrib2c.so /usr/lib/libjasper.so /usr/lib/libpng12.so /usr/lib/libz.so /usr/lib/libhdf5.so /usr/lib/libjpeg.so /usr/lib/libz.so /usr/lib/libnetcdf.so /usr/lib/libudunits2.so -lm
gcc: /usr/lib/libpng12.so: No such file or directory
gcc: /usr/lib/libz.so: No such file or directory
gcc: /usr/lib/libjpeg.so: No such file or directory
gcc: /usr/lib/libjasper.so: No such file or directory
gcc: /usr/lib/libpng12.so: No such file or directory
gcc: /usr/lib/libz.so: No such file or directory
gcc: /usr/lib/libjpeg.so: No such file or directory
gcc: /usr/lib/libz.so: No such file or directory
make[3]: *** [grads] Error 1
make[3]: Leaving directory `/build/buildd/grads-2.0.a8/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/build/buildd/grads-2.0.a8/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/build/buildd/grads-2.0.a8'
dh_auto_build: make -j1 returned exit code 2
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110403-0928
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/grads-2.0.a8