From fd3176a72951a2baece36620341991feb94b230a Mon Sep 17 00:00:00 2001
From: Petr Spacek <pspacek@redhat.com>
Date: Oct 24 2016 11:30:12 +0000
Subject: Build: modernize SASL library detection


Use package config instead of checking headers.
Package config is faster because it does not invoke compiler
and guarantees proper linking flags because these are provided
by package maintainer instead of hardcoded into build system.

https://fedorahosted.org/freeipa/ticket/6418

Reviewed-By: Lukas Slebodnik <lslebodn@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

---

diff --git a/configure.ac b/configure.ac
index 217f815..aa01783 100644
--- a/configure.ac
+++ b/configure.ac
@@ -214,11 +214,7 @@ PKG_CHECK_MODULES([POPT], [popt])
 dnl ---------------------------------------------------------------------------
 dnl - Check for SASL
 dnl ---------------------------------------------------------------------------
-
-SASL_LIBS=
-AC_CHECK_HEADER(sasl/sasl.h, [], [AC_MSG_ERROR([sasl/sasl.h not found])])
-AC_CHECK_LIB(sasl2, sasl_client_init, [SASL_LIBS="-lsasl2"])
-AC_SUBST(SASL_LIBS)
+PKG_CHECK_MODULES([SASL], [libsasl2])
 
 dnl ---------------------------------------------------------------------------
 dnl - Check for CURL