build: stop using the deprecated form of AC_OUTPUT()

> The use of AC_OUTPUT with arguments is deprecated.

See: https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.67/autoconf.html#AC_005fOUTPUT.

diff --git a/configure.ac b/configure.ac
index e53451c6937597fb700a309fb194853cd6ccf80b..ae086703a340e64dc04611abb88fccbc0ee728b9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -893,5 +893,5 @@ DX_INIT_DOXYGEN([libevent], [${top_srcdir}/Doxyfile], [doxygen])
 AM_CONDITIONAL([ENABLE_DOXYGEN], [test "$DX_FLAG_doc" = "1"])
 AM_CONDITIONAL([ENABLE_DOXYGEN_MAN], [test "$DX_FLAG_man" = "1"])
 
-AC_CONFIG_FILES( [libevent.pc libevent_mbedtls.pc libevent_openssl.pc libevent_pthreads.pc libevent_core.pc libevent_extra.pc] )
-AC_OUTPUT(Makefile)
+AC_CONFIG_FILES([Makefile libevent.pc libevent_mbedtls.pc libevent_openssl.pc libevent_pthreads.pc libevent_core.pc libevent_extra.pc] )
+AC_OUTPUT