Author: Tamas Nepusz <ntamas@gmail.com>
Last-Changed: Wed, 27 Aug 2014 21:39:48 +0100
Description: Restore CPPFLAGS properly after the detection of libxml
Bug: https://github.com/igraph/igraph/issues/674
Applied-Upstream: 0.7.2, https://github.com/igraph/igraph/commit/a1a333bb


--- a/configure.ac
+++ b/configure.ac
@@ -146,7 +146,7 @@
       HAVE_LIBXML=1
       AC_DEFINE([HAVE_LIBXML], [1], [Define to 1 if you have the libxml2 libraries installed])
 	  CFLAGS="${OLDCFLAGS} ${XML2_CFLAGS}"
-      CPPFLAGS="${OLDCFLAGS} ${XML2_CFLAGS}"
+      CPPFLAGS="${OLDCPPFLAGS} ${XML2_CFLAGS}"
       AC_SUBST(XML2_LIBS)
       AC_SUBST(XML2_CFLAGS)
     ], [