[IOMultiplexerV2] updated configure.ac to link against c-ares if required

diff --git a/configure.ac b/configure.ac
index 09c3ada2ca367ab76f34f0206db1845063099b68..dfd4bc6b372992c604a952ae538b3858c3bcdc46 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -33,7 +33,7 @@ CFLAGS="$CFLAGS -D_GNU_SOURCE"
 
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([usleep select socket inet_pton inet_ntop])
-AC_CHECK_HEADERS([fcntl.h sys/socket.h sys/select.h sys/time.h sys/types.h unistd.h windows.h winsock2.h errno.h sys/epoll.h sys/event.h ares.h])
+AC_CHECK_HEADERS([fcntl.h sys/socket.h sys/select.h sys/time.h sys/types.h unistd.h windows.h winsock2.h errno.h sys/epoll.h sys/event.h])
 
 AC_CHECK_LIB(ws2_32, main, [ LIBS="$LIBS -lws2_32" ], [])
 AC_CHECK_LIB(ssl, SSL_read, [
@@ -48,6 +48,11 @@ AC_CHECK_LIB(pthread, pthread_create, [
     LIBS="$LIBS -lpthread"
   ])
 ])
+AC_CHECK_LIB(cares, ares_init, [
+  AC_CHECK_HEADERS(ares.h, [
+    LIBS="$LIBS -lcares"
+  ])
+])
 
 AC_CONFIG_FILES([Makefile src/Makefile src/IOHandler/Makefile src/IOHandler++/Makefile src/IOHandler_test/Makefile src/IOHandler_test/socket/Makefile src/IOHandler_test/socket++/Makefile src/IOHandler_test/timer/Makefile])
 AC_OUTPUT