contribs: win32 cross-compilation fixes

extras/contrib/src/Distributions/win32.mak

@@ -2,7 +2,7 @@
 all: .iconv .intl .freetype .fribidi .zlib \
         .a52 .mpeg2 .id3tag .mad .ogg .vorbis .shout .vorbisenc .theora \
         .flac .speex .faad .faac .lame .ebml  .matroska .ffmpeg .dvdcss \
-        .live .goom2k4 .caca .mod .x264  .xml .twolame \
+        .live .pthreads .goom2k4 .caca .mod .x264  .xml .twolame \
         .png .gpg-error .gcrypt .gnutls .mpcdec \
         .dvdnav .dvbpsi .qt4_win32 .schroedinger .SDL_image \
         .dx_headers .dshow_headers .gecko-win32 .dca \

extras/contrib/src/Makefile

@@ -2299,7 +2299,7 @@ yasm: yasm-$(YASM_VERSION).tar.gz
 	$(EXTRACT_GZ)
 
 .yasm: yasm
-	(cd $< && $(HOSTCC) ./configure --prefix=$(PREFIX) && make && make install)
+	(cd $< && $(HOSTCC) ./configure --prefix=$(PREFIX) --host=$(HOST) && make && make install)
 	touch $@
 
 CLEAN_FILE += .yasm