From 12fca1585909b971a57ec4b376d6a5257e345595 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Tue, 4 Jul 2017 02:36:13 +0300
Subject: Add possible workaround into configure for broken libxml2 or/and icu.

Some icu versions allow only C++11 compilation, but libxml2 not adding this flags.
---
 configure.ac | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 143f0c0e0..1da07677c 100755
--- a/configure.ac
+++ b/configure.ac
@@ -193,6 +193,7 @@ AC_TYPE_SSIZE_T
 # Search for *-config
 AC_PATH_PROG(PKG_CONFIG, pkg-config)
 AC_PATH_PROG(CURL_CONFIG, curl-config)
+AC_PATH_PROG(ICU_CONFIG, icu-config)
 
 LIBS="$LIBS `$PKG_CONFIG --libs zlib`"
 CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags zlib`"
@@ -398,8 +399,18 @@ if test "$xmllib" == "libxml"; then
         AC_CHECK_LIB([xml2], [xmlInitParser], ,
         AC_MSG_ERROR([ *** Unable to find libxml2 library (http://xmlsoft.org/)]))
     fi
-    AC_CHECK_HEADERS([libxml/xmlreader.h], ,
-    AC_MSG_ERROR([ *** libxml2 library found but cannot find headers (http://xmlsoft.org/)]))
+    AC_CHECK_HEADERS(
+        [libxml/xmlreader.h],
+        ,
+        CPPFLAGS="$CPPFLAGS `$ICU_CONFIG --cxxflags`"
+        AC_MSG_RESULT([no])
+        AC_MSG_CHECKING([Checking libxml2 headers with icu bug fix])
+        AC_CHECK_HEADERS(
+            [libxml/xmlreader.h],
+            ,
+            AC_MSG_ERROR([ *** libxml2 library found but cannot find headers (http://xmlsoft.org/)])
+        )
+    )
 fi
 
 if test "$xmllib" == "pugixml"; then
-- 
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