Some fixes for compiling on Cygwin: x264, pthreads, taglib and dirac.

Reverse previous workaround for pthreads lib having GC2 suffix - that
is actually normal; patch should instead go into x264 to make it ignore
the presence of a local pthread lib under cygwin when doing configure tests.

extras/contrib/src/Makefile

@@ -1312,7 +1312,11 @@ endif
 
 ifdef HAVE_WIN32
 .x264: x264 .pthreads
+  ifdef HAVE_CYGWIN
+	(cd $<; $(HOSTCC) RANLIB="ranlib" AR="ar" STRIP="strip" ./configure $(X264CONF) --prefix="$(PREFIX)" --extra-cflags="-I$(PREFIX)/include" --extra-ldflags="-L$(PREFIX)/lib" && make && make install)
+  else
 	(cd $<; $(HOSTCC) ./configure $(X264CONF) --prefix="$(PREFIX)" && make && make install)
+  endif
 else
 .x264: x264
 	(cd $<; $(HOSTCC) ./configure $(X264CONF) --prefix="$(PREFIX)" && make && make install)
@@ -1515,7 +1519,11 @@ endif
 ifdef HAVE_WIN32
 	(cd xml; aclocal && automake && autoreconf)
 endif
+  ifdef HAVE_CYGWIN
+	(cd xml; ac_cv_header_pthread_h="no" CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp && make && make install)
+  else
 	(cd xml; CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp && make && make install)
+  endif
 ifndef HAVE_DARWIN_OS
 	$(INSTALL_NAME)
 endif
@@ -1995,6 +2003,9 @@ dirac-$(DIRAC_VERSION).tar.gz:
 dirac: dirac-$(DIRAC_VERSION).tar.gz
 	$(EXTRACT_GZ)
 	patch -p0 <Patches/dirac-cross.patch
+ifdef HAVE_CYGWIN
+	patch -p0 <Patches/dirac-cygwin.patch
+endif
 	(cd $@; aclocal && autoconf && automake)
 
 DIRAC_SUBDIRS = libdirac_byteio libdirac_common libdirac_motionest libdirac_encoder libdirac_decoder
@@ -2150,6 +2161,9 @@ taglib-$(TAGLIB_VERSION).tar.gz:
 
 taglib: taglib-$(TAGLIB_VERSION).tar.gz
 	$(EXTRACT_GZ)
+ifdef HAVE_CYGWIN
+	patch -p0 <Patches/taglib-cygwin.patch
+endif
 
 .tag: taglib
 	(cd $<; $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) && make && make install)
@@ -2172,10 +2186,6 @@ pthreads: pthreads-w32-$(PTHREADS_VERSION)-release.tar.gz
 
 .pthreads: pthreads
 	(cd $<; $(HOSTCC) make $(PTHREADSCONF) GC-static && cp -v pthread.h sched.h semaphore.h $(PREFIX)/include/ && cp -v *.a $(PREFIX)/lib/)
-ifdef HAVE_CYGWIN
-# for some reason Cygwin builds libpthreadGC2.a
-	mv $(PREFIX)/lib/libpthreadGC2.a $(PREFIX)/lib/libpthread.a
-endif
 	$(INSTALL_NAME)
 	touch $@
 

extras/contrib/src/Patches/dirac-cygwin.patch

+--- dirac/configure.ac	2007-09-30 14:45:51.156250000 +1000
++++ dirac/configure.ac	2007-09-30 14:44:27.625000000 +1000
+@@ -225,8 +225,6 @@
+ 		AC_TRY_CXXFLAGS([],[], [$TRY_CFLAGS $CXXFLAGS],[OPT_CFLAGS="$TRY_CFLAGS"])
+ 		TRY_CFLAGS="$OPT_CFLAGS -Wall"
+ 		AC_TRY_CXXFLAGS([],[], [$TRY_CFLAGS $CXXFLAGS],[OPT_CFLAGS="$TRY_CFLAGS"])
+-		TRY_CFLAGS="$OPT_CFLAGS -Werror"
+-		AC_TRY_CXXFLAGS([],[], [$TRY_CFLAGS $CXXFLAGS],[OPT_CFLAGS="$TRY_CFLAGS"])
+ 		TRY_CFLAGS="$OPT_CFLAGS -W"
+ 		AC_TRY_CXXFLAGS([],[], [$TRY_CFLAGS $CXXFLAGS],[OPT_CFLAGS="$TRY_CFLAGS"])
+ 		TRY_CFLAGS="$OPT_CFLAGS -Woverloaded-virtual"

extras/contrib/src/Patches/taglib-cygwin.patch

+--- taglib/admin/conf.change.pl	2005-07-27 10:23:52.000000000 +1000
++++ taglib/admin/conf.change.pl	2007-09-30 15:57:48.062500000 +1000
+@@ -146,6 +146,7 @@
+       fi
+   done
+   if test -f \$tmp/subs.files ; then
++      dos2unix \$tmp/subs.files
+       perl $ac_aux_dir/config.pl "\$tmp/subs.sed" "\$tmp/subs.files" "\$srcdir" "\$INSTALL"
+   fi
+   rm -f \$tmp/subs.files

extras/contrib/src/Patches/x264-svn-win32.patch

@@ -2,6 +2,23 @@ Index: configure
 ===================================================================
 --- configure	(revision 672)
 +++ configure	(working copy)
+@@ -339,13 +339,13 @@
+             pthread="yes"
+             ;;
+         MINGW|CYGWIN)
+-            if cc_check pthread.h -lpthread "pthread_create(0,0,0,0);" ; then
++            if cc_check pthread.h -lpthread "pthread_create(0,0,0,0); pthread_num_processors_np();" ; then
+                 pthread="yes"
+                 libpthread="-lpthread"
+-            elif cc_check pthread.h -lpthreadGC2 "pthread_create(0,0,0,0);" ; then
++            elif cc_check pthread.h -lpthreadGC2 "pthread_create(0,0,0,0); pthread_num_processors_np();" ; then
+                 pthread="yes"
+                 libpthread="-lpthreadGC2"
+-            elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
++            elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0); pthread_num_processors_np();" ; then
+                 pthread="yes"
+                 libpthread="-lpthreadGC2 -lwsock32"
+                 CFLAGS="$CFLAGS -DPTW32_STATIC_LIB"
 @@ -428,6 +428,10 @@
  ASFLAGS=$ASFLAGS
  GTK=$gtk