File icecast-fix-no-add-needed.patch of Package icecast

--- configure.in.orig
+++ configure.in
@@ -1,6 +1,7 @@
 AC_INIT([Icecast], [2.4.4], [icecast@xiph.org])
 
 AC_PREREQ(2.54)
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR(src/main.c)
 dnl Process this file with autoconf to produce a configure script.
 
@@ -8,7 +9,8 @@ AM_INIT_AUTOMAKE
 AM_CONFIG_HEADER(config.h)
 AM_MAINTAINER_MODE
 
-AC_PROG_CC
+AC_PROG_CC_STDC
+AC_USE_SYSTEM_EXTENSIONS
 AC_CANONICAL_HOST
 AC_PROG_LIBTOOL
 AC_SYS_LARGEFILE
@@ -22,7 +24,6 @@ if test -z "$GCC"; then
 else
     XIPH_CPPFLAGS="-Wall -ffast-math -fsigned-char"
     PROFILE="-pg -g"
-    AC_DEFINE([_GNU_SOURCE], 1, [Define to include GNU extensions to POSIX])
 fi
 
 dnl Checks for programs.
@@ -52,10 +53,12 @@ AC_SEARCH_LIBS(nanosleep, rt posix4, AC_
 XIPH_NET
 
 dnl -- configure options --
-
+XIPH_PATH_XML
 XIPH_PATH_XSLT
 XIPH_VAR_APPEND([XIPH_CPPFLAGS],[$XSLT_CFLAGS])
 XIPH_VAR_PREPEND([XIPH_LIBS],[$XSLT_LIBS])
+XIPH_VAR_APPEND([XIPH_CPPFLAGS],[$XML_CFLAGS])
+XIPH_VAR_PREPEND([XIPH_LIBS],[$XML_LIBS])
 
 XIPH_PATH_VORBIS([
     XIPH_VAR_APPEND([XIPH_CPPFLAGS],[$VORBIS_CFLAGS])