Fix for #523002 affecting inkscape at least, Daniel

libxml2-2.7.4-input-parser.patch

@@ -0,0 +1,33 @@
+commit 9d3d141c412baa5c713ad3df48f1a4d179e07b05
+Author: Daniel Veillard <veillard@redhat.com>
+Date:   Tue Sep 15 18:41:30 2009 +0200
+
+    Fix a parsing problem with little data at startup
+    
+    * parser.c: inkscape extension loader (and possibly others) feed
+      data to the parser very slowly, 0 at start, 4 bytes on first GROW
+      and this broke after the fix for
+      https://bugzilla.gnome.org/show_bug.cgi?id=566012
+      http://git.gnome.org/cgit/libxml2/commit/?id=7e385bd4e28a0cc12b6b26ed178c620e3c3ab8d8
+      leading to another bug
+      https://bugzilla.redhat.com/show_bug.cgi?id=523002
+      this detects the situation and GROW when needed for proper processing.
+
+diff --git a/parser.c b/parser.c
+index e415339..b41dcc3 100644
+--- a/parser.c
++++ b/parser.c
+@@ -10130,8 +10130,12 @@ xmlParseDocument(xmlParserCtxtPtr ctxt) {
+     /*
+      * Check for the XMLDecl in the Prolog.
+      * do not GROW here to avoid the detected encoder to decode more
+-     * than just the first line
++     * than just the first line, unless the amount of data is really
++     * too small to hold "<?xml version="1.0" encoding="foo"
+      */
++    if ((ctxt->input->end - ctxt->input->cur) < 35) {
++       GROW;
++    }
+     if ((CMP5(CUR_PTR, '<', '?', 'x', 'm', 'l')) && (IS_BLANK_CH(NXT(5)))) {
+ 
+ 	/*

libxml2.spec

@@ -1,7 +1,7 @@
 Summary: Library providing XML and HTML support
 Name: libxml2
 Version: 2.7.4
-Release: 1%{?dist}%{?extra_release}
+Release: 2%{?dist}%{?extra_release}
 License: MIT
 Group: Development/Libraries
 Source: ftp://xmlsoft.org/libxml2/libxml2-%{version}.tar.gz
@@ -9,6 +9,7 @@ BuildRoot: %{_tmppath}/%{name}-%{version}-root
 BuildRequires: python python-devel zlib-devel pkgconfig
 URL: http://xmlsoft.org/
 Patch0: libxml2-multilib.patch
+Patch1: libxml2-2.7.4-input-parser.patch
 
 %description
 This library allows to manipulate XML files. It includes support 
@@ -67,6 +68,7 @@ at parse time or later once the document has been modified.
 %prep
 %setup -q
 %patch0 -p1
+%patch1 -p1
 
 %build
 %configure
@@ -141,6 +143,9 @@ rm -fr %{buildroot}
 %doc doc/python.html
 
 %changelog
+* Tue Sep 15 2009 Daniel Veillard <veillard@redhat.com> - 2.7.4-2
+- fix a problem with little data at startup affecting inkscape #523002
+
 * Thu Sep 10 2009 Daniel Veillard <veillard@redhat.com> - 2.7.4-1
 - upstream release 2.7.4
 - symbol versioning of libxml2 shared libs