Revert commits 21227, 21441, and 21442. None of this is necessary now that we

load the getaddrinfo family of functions through GetProcAddress. Also, there
is currently no feature that gets fixed in Win98 through the use of KernelEx.

Originally committed as revision 21530 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -2112,11 +2112,6 @@ case $target_os in
             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
         ;;
     mingw32*)
-        # Adding _WIN32_WINNT=0x0501 makes functions that require
-        # XP visible and thus may make it binary incompatible with
-        # earlier versions. Set --target-os=mingw32-prexp if this
-        # isn't desired.
-        test $target_os = "mingw32" && add_cflags -D_WIN32_WINNT=0x0501
         if test $target_os = "mingw32ce"; then
             disable network
         else
@@ -2576,8 +2571,6 @@ if enabled network; then
             network_extralibs="-lws2" || \
         { check_func_headers winsock2.h closesocket -lws2_32 && \
             network_extralibs="-lws2_32"; }
-        # getaddrinfo is available if _WIN32_WINNT >= 0x0501 is defined
-        check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
         check_type ws2tcpip.h socklen_t
         check_type ws2tcpip.h "struct addrinfo"
         check_type ws2tcpip.h "struct ipv6_mreq"

doc/general.texi

@@ -995,13 +995,6 @@ and for a build with shared libraries
 ./configure --target-os=mingw32 --enable-memalign-hack --enable-shared --disable-static --extra-cflags=-mno-cygwin --extra-libs=-mno-cygwin
 @end example
 
-@subsection Win9x/Win2000 support
-
-FFmpeg is built by default for Windows XP and above. To run it on any Windows
-version prior to XP, you must use @code{--target-os=mingw32-prexp}.
-Additionally, for Windows 98/Me you must install KernelEx from:
-http://sourceforge.net/projects/kernelex/
-
 @section BeOS
 
 BeOS support is broken in mysterious ways.