--- configure.ac-orig	2020-11-21 01:57:32.000000000 +0900
+++ configure.ac	2021-01-01 16:08:05.000000000 +0900
@@ -108,17 +108,17 @@
 AC_PROG_MKDIR_P
 AC_PROG_SED
 AC_PATH_PROG([TOUCH], [touch])
-AC_PATH_PROG([RSVG], [rsvg-convert], [false])
-AC_PATH_PROG([INKSCAPE], [inkscape], [false])
-AC_PATH_PROG([CONVERT], [convert], [false])
+#AC_PATH_PROG([RSVG], [rsvg-convert], [false])
+#AC_PATH_PROG([INKSCAPE], [inkscape], [false])
+#AC_PATH_PROG([CONVERT], [convert], [false])
 conversion_tool=no
-if test "x${RSVG}" != xfalse ; then
-  conversion_tool=rsvg
-elif test "x${INKSCAPE}" != xfalse ; then
-  conversion_tool=inkscape
-elif test "x${CONVERT}" != xfalse ; then
-  ( ${CONVERT} --version 2>&1 | grep -q ImageMagick ) && conversion_tool=convert
-fi
+#if test "x${RSVG}" != xfalse ; then
+#  conversion_tool=rsvg
+#elif test "x${INKSCAPE}" != xfalse ; then
+#  conversion_tool=inkscape
+#elif test "x${CONVERT}" != xfalse ; then
+#  ( ${CONVERT} --version 2>&1 | grep -q ImageMagick ) && conversion_tool=convert
+#fi
 AM_CONDITIONAL([HAVE_CONVERSION_RSVG], [test x${conversion_tool} = xrsvg])
 AM_CONDITIONAL([HAVE_CONVERSION_INKSCAPE], [test x${conversion_tool} = xinkscape])
 AM_CONDITIONAL([HAVE_CONVERSION_CONVERT], [test x${conversion_tool} = xconvert])