Cannot build "rdesktop" because of buildlink3 problem

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

        Hello,

I cannot build the "rdesktop" package under Mac OS X 10.5 PowerPC with
"X11_TYPE" set to "native":

===> Building for rdesktop-1.5.0nb3
gcc -pipe -O2 -I/usr/include -Wall -I/usr/include  -DPACKAGE_NAME=\"rdesktop\" 
-DPACKAGE_TARNAME=\"rdesktop\" -DPACKAGE_VERSION=\"1.5.0\" 
-DPACKAGE_STRING=\"rdesktop\ 1.5.0\" -DPACKAGE_BUGREPORT=\"\" -DSTDC_HEADERS=1 
-DB_ENDIAN=1 -DX_DISPLAY_MISSING=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 
-DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 
-DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SYS_SELECT_H=1 
-DHAVE_SYS_FILIO_H=1 -DHAVE_LOCALE_H=1 -DHAVE_LANGINFO_H=1 -Dssldir=\"/usr\" 
-DEGD_SOCKET=\"/var/run/egd-pool\" -DHAVE_DIRENT_H=1 -DHAVE_DECL_DIRFD=1 
-DHAVE_ICONV_H=1 -DHAVE_ICONV=1 -DICONV_CONST= -DHAVE_SYS_STATVFS_H=1 
-DHAVE_SYS_PARAM_H=1 -DHAVE_SYS_MOUNT_H=1 -DSTAT_STATVFS=1 
-DHAVE_STRUCT_STATVFS_F_NAMEMAX=1  
-DKEYMAP_PATH=\"/usr/pkg/share/rdesktop/keymaps/\" -o rdesktop rdesktop.o 
xwin.o xkeymap.o ewmhints.o xclip.o cliprdr.o  tcp.o iso.o mcs.o secure.o 
licence.o rdp.o orders.o bitmap.o cache.o rdp5.o channels.o rdpdr.o serial.o 
printer.o disk.o parallel.o printercache.o mppc.o pstcache.o lspci.o seamless.o 
-L/usr/lib -L/usr/pkg/lib  -L/usr/lib -lcrypto -liconv -lX11
ld: library not found for -lX11

This seems to be caused by a buildlink3 problem:

tron@excalibur:/usr/pkgsrc/net/rdesktop>bmake VARNAME=IS_BUILTIN.libX11 show-var
yes
tron@excalibur:/usr/pkgsrc/net/rdesktop>bmake VARNAME=BUILDLINK_PREFIX.libX11 
show-var     
/usr

This should IMHO read "/usr/X11R6". What is going wrong here?

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/