From aaae19eb8462c784daab0cf9afddc934fdbd1b75 Mon Sep 17 00:00:00 2001
From: defanor <defanor@uberspace.net>
Date: Fri, 8 Sep 2023 17:23:54 +0300
Subject: Support libexpat as an alternative XML parser

---
 configure.ac | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 251a94f..ed9f44c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,7 +29,15 @@ LT_INIT
 
 # Checks for libraries and related parameters.
 
-PKG_CHECK_MODULES([LIBXML], [libxml-2.0])
+AC_ARG_WITH([expat],
+        AS_HELP_STRING([--with-expat], [use libexpat instead of libxml2]))
+
+AS_IF([test "x$with_expat" == "xyes"],
+      [PKG_CHECK_MODULES([EXPAT], [expat],
+        [AC_DEFINE([USE_EXPAT], [1], [Use libexpat])])],
+      [PKG_CHECK_MODULES([LIBXML2], [libxml-2.0],
+        [AC_DEFINE([USE_LIBXML2], [1], [Use libxml2])])])
+
 
 AM_PATH_LIBGCRYPT
 
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