libxml2: fix gcc2 build

dev-libs/libxml2/libxml2-2.9.9.recipe

@@ -10,7 +10,7 @@ available in other environments."
 HOMEPAGE="http://www.xmlsoft.org/"
 COPYRIGHT="1998-2013 Daniel Veillard.  All Rights Reserved."
 LICENSE="MIT"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="ftp://xmlsoft.org/libxml2/libxml2-$portVersion.tar.gz"
 CHECKSUM_SHA256="94fb70890143e3c6549f265cee93ec064c80a84c42ad0f23e85ee1fd6540a871"
 PATCHES="libxml2-$portVersion.patchset"

dev-libs/libxml2/patches/libxml2-2.9.9.patchset

@@ -187,3 +187,31 @@ index 5773db3..1065298 100644
 -- 
 2.2.2
 
+From 607d388f8f591239695762da33231670d9c2f325 Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Wed, 3 Apr 2019 18:27:19 +0200
+Subject: [PATCH] Remove options unknown to gcc2
+
+---
+ configure.ac | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 974d292..35e972d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -769,9 +769,9 @@ else
+     fi
+ 
+     # warnings we'd like to see
+-    EXTRA_CFLAGS="${EXTRA_CFLAGS} -pedantic -Wall -Wextra -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wredundant-decls"
++    EXTRA_CFLAGS="${EXTRA_CFLAGS} -pedantic -Wall -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wredundant-decls"
+     # warnings we'd like to supress
+-    EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-long-long -Wno-format-extra-args -Wno-array-bounds"
++    EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-long-long -Wno-format-extra-args"
+     case "${host}" in
+           alpha*-*-linux* )
+ 	       EXTRA_CFLAGS="${EXTRA_CFLAGS} -mieee"
+-- 
+2.19.1
+