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dnl Licensed to the Apache Software Foundation (ASF) under one or more
dnl contributor license agreements. See the NOTICE file distributed with
dnl this work for additional information regarding copyright ownership.
dnl The ASF licenses this file to You under the Apache License, Version 2.0
dnl (the "License"); you may not use this file except in compliance with
dnl the License. You may obtain a copy of the License at
dnl
dnl http://www.apache.org/licenses/LICENSE-2.0
dnl
dnl Unless required by applicable law or agreed to in writing, software
dnl distributed under the License is distributed on an "AS IS" BASIS,
dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dnl See the License for the specific language governing permissions and
dnl limitations under the License.
dnl # start of module specific part
APACHE_MODPATH_INIT(http2)
dnl # list of module object files
http2_objs="dnl
mod_http2.lo dnl
h2_alt_svc.lo dnl
h2_config.lo dnl
h2_conn.lo dnl
h2_conn_io.lo dnl
h2_ctx.lo dnl
h2_from_h1.lo dnl
h2_h2.lo dnl
h2_io.lo dnl
h2_io_set.lo dnl
h2_mplx.lo dnl
h2_request.lo dnl
h2_response.lo dnl
h2_session.lo dnl
h2_stream.lo dnl
h2_stream_set.lo dnl
h2_switch.lo dnl
h2_task.lo dnl
h2_task_input.lo dnl
h2_task_output.lo dnl
h2_task_queue.lo dnl
h2_to_h1.lo dnl
h2_util.lo dnl
h2_worker.lo dnl
h2_workers.lo dnl
"
dnl
dnl APACHE_CHECK_NGHTTP2
dnl
dnl Configure for nghttp2, giving preference to
dnl "--with-nghttp2=<path>" if it was specified.
dnl
AC_DEFUN(APACHE_CHECK_NGHTTP2,[
AC_CACHE_CHECK([for nghttp2], [ac_cv_nghttp2], [
dnl initialise the variables we use
ac_cv_nghttp2=no
ap_nghttp2_found=""
ap_nghttp2_base=""
ap_nghttp2_libs=""
dnl Determine the nghttp2 base directory, if any
AC_MSG_CHECKING([for user-provided nghttp2 base directory])
AC_ARG_WITH(nghttp2, APACHE_HELP_STRING(--with-nghttp2=PATH, nghttp2 installation directory), [
dnl If --with-nghttp2 specifies a directory, we use that directory
if test "x$withval" != "xyes" -a "x$withval" != "x"; then
dnl This ensures $withval is actually a directory and that it is absolute
ap_nghttp2_base="`cd $withval ; pwd`"
fi
])
if test "x$ap_nghttp2_base" = "x"; then
AC_MSG_RESULT(none)
else
AC_MSG_RESULT($ap_nghttp2_base)
fi
dnl Run header and version checks
saved_CPPFLAGS="$CPPFLAGS"
saved_LIBS="$LIBS"
saved_LDFLAGS="$LDFLAGS"
dnl Before doing anything else, load in pkg-config variables
if test -n "$PKGCONFIG"; then
saved_PKG_CONFIG_PATH="$PKG_CONFIG_PATH"
AC_MSG_CHECKING([for pkg-config along $PKG_CONFIG_PATH])
if test "x$ap_nghttp2_base" != "x" -a \
-f "${ap_nghttp2_base}/lib/pkgconfig/libnghttp2.pc"; then
dnl Ensure that the given path is used by pkg-config too, otherwise
dnl the system libnghttp2.pc might be picked up instead.
PKG_CONFIG_PATH="${ap_nghttp2_base}/lib/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"
export PKG_CONFIG_PATH
fi
AC_ARG_ENABLE(nghttp2-staticlib-deps,APACHE_HELP_STRING(--enable-nghttp2-staticlib-deps,[link mod_http2 with dependencies of libnghttp2's static libraries (as indicated by "pkg-config --static"). Must be specified in addition to --enable-http2.]), [
if test "$enableval" = "yes"; then
PKGCONFIG_LIBOPTS="--static"
fi
])
ap_nghttp2_libs="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-l --silence-errors libnghttp2`"
if test $? -eq 0; then
ap_nghttp2_found="yes"
pkglookup="`$PKGCONFIG --cflags-only-I libnghttp2`"
APR_ADDTO(CPPFLAGS, [$pkglookup])
APR_ADDTO(MOD_CFLAGS, [$pkglookup])
APR_ADDTO(ab_CFLAGS, [$pkglookup])
pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-L libnghttp2`"
APR_ADDTO(LDFLAGS, [$pkglookup])
APR_ADDTO(MOD_LDFLAGS, [$pkglookup])
pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-other libnghttp2`"
APR_ADDTO(LDFLAGS, [$pkglookup])
APR_ADDTO(MOD_LDFLAGS, [$pkglookup])
fi
PKG_CONFIG_PATH="$saved_PKG_CONFIG_PATH"
fi
dnl fall back to the user-supplied directory if not found via pkg-config
if test "x$ap_nghttp2_base" != "x" -a "x$ap_nghttp2_found" = "x"; then
APR_ADDTO(CPPFLAGS, [-I$ap_nghttp2_base/include])
APR_ADDTO(MOD_CFLAGS, [-I$ap_nghttp2_base/include])
APR_ADDTO(ab_CFLAGS, [-I$ap_nghttp2_base/include])
APR_ADDTO(LDFLAGS, [-L$ap_nghttp2_base/lib])
APR_ADDTO(MOD_LDFLAGS, [-L$ap_nghttp2_base/lib])
if test "x$ap_platform_runtime_link_flag" != "x"; then
APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_nghttp2_base/lib])
APR_ADDTO(MOD_LDFLAGS, [$ap_platform_runtime_link_flag$ap_nghttp2_base/lib])
fi
fi
AC_MSG_CHECKING([for nghttp2 version >= 1.0.0])
AC_TRY_COMPILE([#include <nghttp2/nghttp2ver.h>],[
#if !defined(NGHTTP2_VERSION_NUM)
#error "Missing nghttp2 version"
#endif
#if NGHTTP2_VERSION_NUM < 0x010000
#error "Unsupported nghttp2 version " NGHTTP2_VERSION_TEXT
#endif],
[AC_MSG_RESULT(OK)
ac_cv_nghttp2=yes],
[AC_MSG_RESULT(FAILED)])
if test "x$ac_cv_nghttp2" = "xyes"; then
ap_nghttp2_libs="${ap_nghttp2_libs:--lnghttp2} `$apr_config --libs`"
APR_ADDTO(MOD_LDFLAGS, [$ap_nghttp2_libs])
APR_ADDTO(LIBS, [$ap_nghttp2_libs])
APR_SETVAR(ab_LDFLAGS, [$MOD_LDFLAGS])
APACHE_SUBST(ab_CFLAGS)
APACHE_SUBST(ab_LDFLAGS)
dnl Run library and function checks
liberrors=""
AC_CHECK_HEADERS([nghttp2/nghttp2.h])
AC_CHECK_FUNCS([nghttp2_session_server_new2], [], [liberrors="yes"])
if test "x$liberrors" != "x"; then
AC_MSG_WARN([nghttp2 library is unusable])
fi
else
AC_MSG_WARN([nghttp2 version is too old])
fi
dnl restore
CPPFLAGS="$saved_CPPFLAGS"
LIBS="$saved_LIBS"
LDFLAGS="$saved_LDFLAGS"
])
if test "x$ac_cv_nghttp2" = "xyes"; then
AC_DEFINE(HAVE_NGHTTP2, 1, [Define if nghttp2 is available])
fi
])
dnl # hook module into the Autoconf mechanism (--enable-http2)
APACHE_MODULE(http2, [HTTP/2 protocol handling in addition to HTTP protocol
handling. Implemented by mod_http2. This module requires a libnghttp2 installation.
See --with-nghttp2 on how to manage non-standard locations. This module
is usually linked shared and requires loading. ], $http2_objs, , most, [
APACHE_CHECK_NGHTTP2
if test "$ac_cv_nghttp2" = "yes" ; then
if test "x$enable_http2" = "xshared"; then
# The only symbol which needs to be exported is the module
# structure, so ask libtool to hide everything else:
APR_ADDTO(MOD_HTTP2_LDADD, [-export-symbols-regex http2_module])
fi
else
enable_http2=no
fi
])
dnl # end of module specific part
APACHE_MODPATH_FINISH
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