--- a/configure.in	Sun Jun 07 02:45:55 2009 +0000
+++ b/configure.in	Sun Jun 07 06:06:35 2009 +0000
@@ -250,6 +250,14 @@
 else
     SOURCES="$SOURCES $srcdir/src/haptic/*.c"
 fi
+AC_ARG_ENABLE(power,
+AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
+              , enable_power=yes)
+if test x$enable_power != xyes; then
+    AC_DEFINE(SDL_POWER_DISABLED)
+else
+    SOURCES="$SOURCES $srcdir/src/power/*.c"
+fi
 AC_ARG_ENABLE(cdrom,
 AC_HELP_STRING([--enable-cdrom], [Enable the cdrom subsystem [[default=yes]]]),
               , enable_cdrom=yes)
@@ -2446,6 +2454,16 @@
              esac
            fi
         fi
+        # Set up files for the power library
+        if test x$enable_power = xyes; then
+             case $ARCH in
+               linux)
+                   AC_DEFINE(SDL_POWER_LINUX)
+                   SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
+                   have_power=yes
+               ;;
+             esac
+        fi
         # Set up files for the cdrom library
         if test x$enable_cdrom = xyes; then
           case $ARCH in
@@ -2620,6 +2638,12 @@
             SOURCES="$SOURCES $srcdir/src/loadso/win32/*.c"
             have_loadso=yes
         fi
+        # Set up files for the system power library
+        if test x$enable_power = xyes; then
+            AC_DEFINE(SDL_POWER_WINDOWS)
+            SOURCES="$SOURCES $srcdir/src/power/windows/*.c"
+            have_power=yes
+        fi
         # Set up the system libraries we need
         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer"
         # The Win32 platform requires special setup
@@ -2691,6 +2715,11 @@
                 have_haptic=yes
             fi
         fi
+        if test x$enable_power = xyes; then
+            AC_DEFINE(SDL_POWER_WINDOWS)
+            SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
+            have_power=yes
+        fi
         # Set up files for the cdrom library
         if test x$enable_cdrom = xyes; then
             AC_DEFINE(SDL_CDROM_WIN32)
@@ -2842,6 +2871,12 @@
             have_haptic=yes
             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
         fi
+        # Set up files for the power library
+        if test x$enable_power = xyes; then
+            AC_DEFINE(SDL_POWER_MACOSX)
+            SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
+            have_power=yes
+        fi
         # Set up files for the cdrom library
         if test x$enable_cdrom = xyes; then
             AC_DEFINE(SDL_CDROM_MACOSX)