The qemu configure script will silently disable graphical output if it can't find a suitable output library (ie. SDL). This is a very common source of confusion for people building qemu for the first time. It's not obvious from the configure output that SDL is effectively required for normal operation.
The attached patch changes the default behaviour so that configure will issue an error if a user tries configure full system emulation without graphical output. It also adds an option to suppress this check for users who know what they are doing. Paul
Index: configure =================================================================== RCS file: /cvsroot/qemu/qemu/configure,v retrieving revision 1.66 diff -u -p -r1.66 configure --- configure 28 Apr 2005 20:41:53 -0000 1.66 +++ configure 31 May 2005 17:59:51 -0000 @@ -84,6 +84,7 @@ linux="no" kqemu="no" kernel_path="" cocoa="no" +check_gfx="yes" # OS specific targetos=`uname -s` @@ -186,6 +187,8 @@ for opt do ;; --enable-cocoa) cocoa="yes" ; sdl="no" ;; + --disable-gfx-check) check_gfx="no" + ;; esac done @@ -604,6 +607,14 @@ if expr $target : '.*-user' > /dev/null target_user_only="yes" fi +if test "$target_user_only" = "no" -a "$check_gfx" = "yes" \ + -a "$sdl" = "no" -a "$cocoa" = "no" ; then + echo "ERROR: QEMU requires SDL or Cocoa for graphical output" + echo "To build QEMU with graphical output configure with --disable-gfx-check" + echo "Note that this will disable all output from the virtual graphics card." + exit 1; +fi + #echo "Creating $config_mak, $config_h and $target_dir/Makefile" mkdir -p $target_dir
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