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diff --git a/configure.ac b/configure.ac
index 9369e55..17a9e1d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -199,19 +199,31 @@ AM_CONDITIONAL(USE_GNUTLS, test x$enable_ssl = xGnuTLS)
dnl +-------------------------------------------------------------------+
dnl | Checking for libasyncns |
dnl +-------------------------------------------------------------------+
-AC_ARG_WITH(asyncns, [ --with-asyncns=yes/no define whether to use libasyncns, default=no],
- ac_asyncns=$withval,
- ac_asyncns=no
- )
+AC_ARG_WITH(asyncns,
+ AS_HELP_STRING([--with-asyncns],
+ [define whether to use libasyncns, @<:@default=no@:>@ (internal/system/no)]),
+ ac_asyncns=$withval,
+ ac_asyncns=no)
enable_asyncns=no
+have_asyncns_system=no
if test x$ac_asyncns != xno; then
enable_asyncns=yes
AC_DEFINE(HAVE_ASYNCNS, 1, [Whether to use libasyncns])
+
+ if test x$ac_asyncns = xsystem; then
+ PKG_CHECK_MODULES(ASYNCNS, [libasyncns >= 0.3],
+ [have_asyncns_system=yes],
+ [have_asyncns_system=no])
+ fi
else
echo "Not using asynchronous dns lookups"
fi
+AC_SUBST(ASYNCNS_CFLAGS)
+AC_SUBST(ASYNCNS_LIBS)
+AM_CONDITIONAL(USE_SYSTEM_ASYNCNS, test x$have_asyncns_system = xyes)
+
dnl +-------------------------------------------------------------------+
dnl | Checking for Linux TCP/IP stack |
dnl +-------------------------------------------------------------------+
diff --git a/loudmouth/Makefile.am b/loudmouth/Makefile.am
index f73aa0c..e308e1c 100644
--- a/loudmouth/Makefile.am
+++ b/loudmouth/Makefile.am
@@ -6,6 +6,7 @@ AM_CPPFLAGS = \
-I. \
-I$(top_srcdir) \
$(LOUDMOUTH_CFLAGS) \
+ $(ASYNCNS_CFLAGS) \
$(LIBIDN_CFLAGS) \
-DLM_COMPILATION \
-DRUNTIME_ENDIAN \
@@ -51,8 +52,6 @@ libloudmouth_1_la_SOURCES = \
lm-sock.c \
lm-socket.c \
lm-socket.h \
- asyncns.c \
- asyncns.h \
lm-sasl.c \
lm-sasl.h \
md5.c \
@@ -61,6 +60,13 @@ libloudmouth_1_la_SOURCES = \
base64.h \
$(NULL)
+if ! USE_SYSTEM_ASYNCNS
+libloudmouth_1_la_SOURCES += \
+ asyncns.c \
+ asyncns.h \
+ $(NULL)
+endif
+
libloudmouthinclude_HEADERS = \
lm-connection.h \
lm-error.h \
@@ -75,6 +81,7 @@ libloudmouthinclude_HEADERS = \
libloudmouth_1_la_LIBADD = \
$(LOUDMOUTH_LIBS) \
+ $(ASYNCNS_LIBS) \
$(LIBIDN_LIBS) \
-lresolv
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