Ghostscript failes to build on Snow Leopard

[mwalz@…]

Upgraded to Snow Leopard, uninstalled all Ports, uninstalled MacPorts.

Installed MacPorts from .dmg (1.8.0 for Snow Leopard).

Installed Ports (most worked), but Ghostscript fails with the following error:

--->  Computing dependencies for ghostscript
--->  Building ghostscript
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_print_ghostscript/work/ghostscript-8.70" && /usr/bin/make so " returned error 2
Command output: /usr/bin/make LDFLAGS='-L/opt/local/lib -L/usr/X11/lib -dynamiclib -install_name /opt/local/lib/libgs.8.70.dylib' GS_XE=./bin/../sobin/libgs.8.70.dylib STDIO_IMPLEMENTATION=c DISPLAY_DEV=./obj/../soobj/display.dev BINDIR=./bin/../sobin GLGENDIR=./obj/../soobj GLOBJDIR=./obj/../soobj PSGENDIR=./obj/../soobj PSOBJDIR=./obj/../soobj CFLAGS='-O2  -isystem/opt/local/include  -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing-prototypes -Wwrite-strings -Wno-strict-aliasing -Wdeclaration-after-statement -fno-builtin -fno-common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long int" -O2 -arch x86_64 -DUSE_LIBICONV_GNU ' prefix=/opt/local ./bin/../sobin/gsc ./bin/../sobin/gsx
make[1]: *** No rule to make target `src/png.c', needed by `obj/../soobj/png.o'.  Stop.
make: *** [so] Error 2

All dependencies are installed.