mythbuild.sh problem

Using mythbuild.sh from mythbuild-CURRENT.zip @ http://www.softsystem.co.uk/download/mythtv/

Cross compile for Windows on Ubuntu 12.04

/usr/lib/gcc/i586-mingw32msvc/4.2.1-sjlj/../../../../i586-mingw32msvc/bin/ld: warning: auto-importing has been activated without --enable-auto-import specified on the command line.
This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.
make[1]: lib.exe: Command not found
LD	libavformat/libmythavformat-52.dll
Info: resolving _ff_frame_rate_tab by linking to __imp__ff_frame_rate_tab (auto-import)
Info: resolving _ff_mpa_freq_tab by linking to __imp__ff_mpa_freq_tab (auto-import)
Info: resolving _ff_log2_tab by linking to __imp__ff_log2_tab (auto-import)
Info: resolving _ff_mpeg4audio_sample_rates by linking to __imp__ff_mpeg4audio_sample_rates (auto-import)
Info: resolving _av_md5_size by linking to __imp__av_md5_size (auto-import)
Info: resolving _av_aes_size by linking to __imp__av_aes_size (auto-import)
Info: resolving _av_tree_node_size by linking to __imp__av_tree_node_size (auto-import)
Info: resolving _ff_mpa_bitrate_tab by linking to __imp__ff_mpa_bitrate_tab (auto-import)
Creating library file: libavformat/liblibmythavformat.dll.a
/usr/lib/gcc/i586-mingw32msvc/4.2.1-sjlj/../../../../i586-mingw32msvc/bin/ld: warning: auto-importing has been activated without --enable-auto-import specified on the command line.
This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.
libavformat/mpegts.o: In function `write_section_data':
/home/mike/src/mythbuildw32-1/mythtv/mythtv/external/FFmpeg/libavformat/mpegts.c:343: undefined reference to `_dprintf'
collect2: ld returned 1 exit status
make[1]: *** [libavformat/libmythavformat-52.dll] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [external/FFmpeg] Error 2

ERROR: make failed.
mike@mike-VirtualBox:~/src/mythbuildw32-1$