Index: scim-pinyin-0.5.91/configure.ac
===================================================================
--- scim-pinyin-0.5.91.orig/configure.ac
+++ scim-pinyin-0.5.91/configure.ac
@@ -73,11 +73,7 @@ AC_ARG_ENABLE(debug,
 	      enable_debug=no)
 
 AC_ARG_ENABLE(skim-support,
-              [  --disable-skim-support  Enable skim Setup UI],
-              skim_support=no,
-              skim_support=yes)
-
-AM_CONDITIONAL(SCIM_BUILD_SKIM_SETUP, [test "$skim_support" = "yes"])
+              [  --disable-skim-support  Enable skim Setup UI])
 
 if test "$enable_debug" = "yes"; then
   AC_DEFINE(ENABLE_DEBUG,1,[Define this to enable the debug facility in libscim])
@@ -126,7 +122,7 @@ AC_CONFIG_FILES([Makefile
                  po/Makefile.in
                  scim-pinyin.spec])
 
-if test "$skim_support" = "yes"; then
+if test "x$enable_skim_support" != "xno"; then
 REQUIRED_SKIM_VERSION=1.2.1
 dnl skim probably has been installed under prefix=$KDEDIR, so add it to search path of pkgconfig
 kde_libsuffix=`kde-config --libsuffix`
@@ -155,5 +151,6 @@ PKG_CHECK_MODULES(SCIM_KDEUTILS,[scim_kd
 fi
 
 AM_CONDITIONAL(SCIM_PINYIN_ENABLE_SKIM_SUPPORT, [test "$HAS_KDEUTILS" = "yes"])
+AM_CONDITIONAL(SCIM_BUILD_SKIM_SETUP, [test "$HAS_SKIM" = "yes"])
 AC_SUBST(SCIM_PINYIN_ENABLE_SKIM_SUPPORT)
 AC_OUTPUT