Pullup ticket #6459 - requested by nia
textproc/libxslt: build fix

Revisions pulled up:
- textproc/libxslt/distinfo                                     1.66
- textproc/libxslt/patches/patch-configure                      1.3

---
   Module Name:	pkgsrc
   Committed By:	mcf
   Date:		Mon May 24 04:18:19 UTC 2021

   Modified Files:
   	pkgsrc/textproc/libxslt: distinfo
   Added Files:
   	pkgsrc/textproc/libxslt/patches: patch-configure

   Log Message:
   libxslt: fix libxml2 detection with libxml2 >= 2.9.11

   xml2-config from libxml2 >= 2.9.11 now exits with non-zero status
   for invalid arguments. libxslt called xml2-config with the invalid
   `print` option to probe for its existence, so with new libxml2 it
   now skipped detection via xml2-config entirely causing a build
   failure.

   Apply upstream patch to correct this invalid xml2-config usage.


(bsiegert)

$NetBSD: patch-configure,v 1.3.2.2 2021/05/25 14:49:35 bsiegert Exp $

Fix incorrect xml2-config usage.

Upstream: https://gitlab.gnome.org/GNOME/libxslt/-/commit/90c34c8bb90e095a8a8fe8b2ce368bd9ff1837cc

--- configure.orig	Mon May 24 04:04:05 2021
+++ configure
@@ -14860,7 +14860,7 @@ PKG_CONFIG=$_save_PKG_CONFIG
 fi
 
 
-if test "x$LIBXML_LIBS" = "x" && ${XML_CONFIG} --libs print > /dev/null 2>&1
+if test "x$LIBXML_LIBS" = "x" && ${XML_CONFIG} --libs > /dev/null 2>&1
 then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libxml libraries >= $LIBXML_REQUIRED_VERSION" >&5
 $as_echo_n "checking for libxml libraries >= $LIBXML_REQUIRED_VERSION... " >&6; }