dnl -----------------------------------------------------
dnl XRender check
dnl -----------------------------------------------------
LIB_XRENDER=
if test "$kde_use_qt_emb" = "no" && test "$kde_use_qt_mac" = "no"; then
  KDE_CHECK_HEADER(X11/extensions/Xrender.h, [xrender_h=yes], [xrender_h=no])
  if test "$xrender_h" = yes; then
  KDE_CHECK_LIB(Xrender, XRenderComposite, [
    LIB_XRENDER=-lXrender
    AC_DEFINE_UNQUOTED(HAVE_XRENDER, 1, [Defined if your system has XRender support])
  ], [], -lXext -lX11 $X_EXTRA_LIBS)
  fi
fi
AC_SUBST(LIB_XRENDER)

dnl -----------------------------------------------------
dnl IA32 checks
dnl -----------------------------------------------------
case $host_cpu in
  i*86 )
  AC_MSG_CHECKING(for assembler support for IA32 extensions)
 
  dnl MMX check
  AC_TRY_COMPILE(, [ __asm__("pxor %mm0, %mm0") ],
  [
    echo $ECHO_N "MMX yes$ECHO_C"
    AC_DEFINE_UNQUOTED(HAVE_X86_MMX, 1, [Define to 1 if the assembler supports MMX instructions.])
  ], [ echo $ECHO_N "MMX no$ECHO_C" ])

  dnl SSE check
  AC_TRY_COMPILE(,[ __asm__("xorps %xmm0, %xmm0") ],
  [
    echo $ECHO_N ", SSE yes$ECHO_C"
    AC_DEFINE_UNQUOTED(HAVE_X86_SSE, 1, [Define to 1 if the assembler supports SSE instructions.])
  ], [ echo $ECHO_N ", SSE no$ECHO_C" ])

  dnl SSE2 check
  AC_TRY_COMPILE(, [ __asm__("xorpd %xmm0, %xmm0") ],
  [
    echo $ECHO_N ", SSE2 yes$ECHO_C"
    AC_DEFINE_UNQUOTED(HAVE_X86_SSE2, 1, [Define to 1 if the assembler supports SSE2 instructions.])
  ], [ echo $ECHO_N ", SSE2 no$ECHO_C" ])
 
  dnl 3DNOW check
  AC_TRY_COMPILE(, [ __asm__("femms") ],
  [
    echo $ECHO_N ", 3DNOW yes$ECHO_C"
    AC_DEFINE_UNQUOTED(HAVE_X86_3DNOW, 1, [Define to 1 if the assembler supports 3DNOW instructions.])
  ], [ echo $ECHO_N ", 3DNOW no$ECHO_C" ])
  echo
  ;;
  powerpc )
  AC_MSG_CHECKING(for assembler support for AltiVec instructions)
  dnl AltiVec check
  AC_TRY_COMPILE(, [ __asm__("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0" : : "r"(-1) ) ],
  [
    echo $ECHO_N " yes$ECHO_C"
    AC_DEFINE_UNQUOTED(HAVE_PPC_ALTIVEC, 1, [Define to 1 if the assembler supports AltiVec instructions.])
  ], [ echo $ECHO_N ", AltiVec no$ECHO_C" ])
  echo
  ;;
esac