Fix build with ancient version of perl (5.005).

Pointed out by:		kris

net/p5-Net-Z3950/files/patch-yazwrap-Makefile.PL

@@ -0,0 +1,19 @@
+--- yazwrap/Makefile.PL.orig	Tue May  6 17:59:59 2003
++++ yazwrap/Makefile.PL	Fri Sep 19 10:57:34 2003
+@@ -1,8 +1,15 @@
++my $yazinc = `yaz-config --cflags`;
++my $yazlibs = `yaz-config --libs`;
++if (!$yazinc || !$yazlibs) {
++    die "ERROR: Unable to call script 'yaz-config': is YAZ installed?";
++}
++
+ use ExtUtils::MakeMaker;
+-$Verbose = 1;
+ 
+ WriteMakefile(
+     'NAME'	=> 'Net::Z3950::yazwrap',
++    'LIBS'      => [ $yazlibs ],
++    'INC'       => $yazinc,
+     'SKIP'	=> [qw(all static dynamic test)],
+     'clean'	=> {'FILES' => 'libyazwrap$(LIB_EXT)'},
+ 	      'OPTIMIZE' => '-g',	### temporary