diff --git a/ext/dom/config.m4 b/ext/dom/config.m4
index 2d130753ff042..bf54a449c4bdf 100644
--- a/ext/dom/config.m4
+++ b/ext/dom/config.m4
@@ -5,11 +5,6 @@ PHP_ARG_ENABLE([dom],
   [yes])
 
 if test "$PHP_DOM" != "no"; then
-
-  if test "$PHP_LIBXML" = "no"; then
-    AC_MSG_ERROR([DOM extension requires LIBXML extension, add --with-libxml])
-  fi
-
   PHP_SETUP_LIBXML([DOM_SHARED_LIBADD], [
     AC_DEFINE([HAVE_DOM], [1],
       [Define to 1 if the PHP extension 'dom' is available.])
diff --git a/ext/xsl/config.m4 b/ext/xsl/config.m4
index c7e59bc4074f8..2b8c851b3add8 100644
--- a/ext/xsl/config.m4
+++ b/ext/xsl/config.m4
@@ -4,15 +4,6 @@ PHP_ARG_WITH([xsl],
     [Build with XSL support])])
 
 if test "$PHP_XSL" != "no"; then
-
-  if test "$PHP_LIBXML" = "no"; then
-    AC_MSG_ERROR([XSL extension requires LIBXML extension, add --with-libxml])
-  fi
-
-  if test "$PHP_DOM" = "no"; then
-    AC_MSG_ERROR([XSL extension requires DOM extension, add --enable-dom])
-  fi
-
   PKG_CHECK_MODULES([XSL], [libxslt >= 1.1.0])
 
   PHP_EVAL_INCLINE([$XSL_CFLAGS])