configure: disable cross compilation auto detection

This didn't work very well when cross compiling from Linux to Windows:
it tries to execute an .exe file, which succeeds if wine is installed.
As consequence it detects "no" as result.

In general this won't work if emulation for the target architecture is
available. Remove it.

configure

@@ -476,7 +476,7 @@ Available values for --language-msg are: all $msg_lang_all
 
 Miscellaneous options:
   --enable-runtime-cpudetection    enable runtime CPU detection [disable]
-  --enable-cross-compile enable cross-compilation [autodetect]
+  --enable-cross-compile enable cross-compilation [disable]
   --cc=COMPILER          C compiler to build MPlayer [gcc]
   --host-cc=COMPILER     C compiler for tools needed while building [gcc]
   --as=ASSEMBLER         assembler to build MPlayer [as]
@@ -560,7 +560,7 @@ _as=auto
 _nm=auto
 _yasm=yasm
 _runtime_cpudetection=no
-_cross_compile=auto
+_cross_compile=no
 _prefix="/usr/local"
 ffmpeg=auto
 ffmpeg_internals=no
@@ -1478,9 +1478,10 @@ echo "Detected operating system: $system_name"
 echo "Detected host architecture: $host_arch"
 
 echocheck "cross compilation"
-if test $_cross_compile = auto ; then
+if test $_cross_compile = yes ; then
   _cross_compile=yes
-  cflag_check "" && "$TMPEXE" && _cross_compile=no
+else
+  _cross_compile=no
 fi
 echores $_cross_compile