updated for version 7.4.409
Problem:    Can't build with Perl on Fedora 20.
Solution:   Find xsubpp in another directory. (Michael Henry)
diff --git a/src/auto/configure b/src/auto/configure
index 30db8a0..b0fba30 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -687,6 +687,7 @@
 PERL_OBJ
 PERL_SRC
 shrpenv
+vi_cv_perl_xsubpp
 vi_cv_perllib
 vi_cv_path_perl
 MZSCHEME_MZC
@@ -5604,6 +5605,14 @@
       fi
       vi_cv_perllib=`$vi_cv_path_perl -MConfig -e 'print $Config{privlibexp}'`
 
+      vi_cv_perl_extutils=unknown_perl_extutils_path
+      for extutils_rel_path in ExtUtils vendor_perl/ExtUtils; do
+	xsubpp_path="$vi_cv_perllib/$extutils_rel_path/xsubpp"
+	if test -f "$xsubpp_path"; then
+	  vi_cv_perl_xsubpp="$xsubpp_path"
+	fi
+      done
+
             perlcppflags=`$vi_cv_path_perl -Mlib=$srcdir -MExtUtils::Embed \
 	      -e 'ccflags;perl_inc;print"\n"' | sed -e 's/-fno[^ ]*//'`
             perllibs=`cd $srcdir; $vi_cv_path_perl -MExtUtils::Embed -e 'ldopts' | \