#*************************************************************************** # _ _ ____ _ # Project ___| | | | _ \| | # / __| | | | |_) | | # | (__| |_| | _ <| |___ # \___|\___/|_| \_\_____| # # Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al. # # This software is licensed as described in the file COPYING, which # you should have received as part of this distribution. The terms # are also available at http://curl.haxx.se/docs/copyright.html. # # You may opt to use, copy, modify, merge, publish, distribute and/or sell # copies of the Software, and permit persons to whom the Software is # furnished to do so, under the terms of the COPYING file. # # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY # KIND, either express or implied. # # $Id: curl-confopts.m4,v 1.4 2008-11-13 18:56:56 yangtse Exp $ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. # serial 4 dnl CURL_CHECK_OPTION_DEBUG dnl ------------------------------------------------- dnl Verify if configure has been invoked with option dnl --enable-debug or --disable-debug, and set shell dnl variable want_debug value as appropriate. AC_DEFUN([CURL_CHECK_OPTION_DEBUG], [ AC_BEFORE([$0],[CURL_CHECK_OPTION_WARNINGS])dnl AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_MSG_CHECKING([whether to enable debug build options]) OPT_DEBUG_BUILD="default" AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug],[Enable debug build options]) AC_HELP_STRING([--disable-debug],[Disable debug build options]), OPT_DEBUG_BUILD=$enableval) case "$OPT_DEBUG_BUILD" in no) dnl --disable-debug option used want_debug="no" ;; default) dnl configure option not specified want_debug="no" ;; *) dnl --enable-debug option used want_debug="yes" ;; esac AC_MSG_RESULT([$want_debug]) ]) dnl CURL_CHECK_OPTION_NONBLOCKING dnl ------------------------------------------------- dnl Verify if configure has been invoked with option dnl --enable-nonblocking or --disable-nonblocking, and dnl set shell variable want_nonblocking as appropriate. AC_DEFUN([CURL_CHECK_OPTION_NONBLOCKING], [ AC_BEFORE([$0],[CURL_CHECK_NONBLOCKING_SOCKET])dnl AC_MSG_CHECKING([whether to enable non-blocking communications]) OPT_NONBLOCKING="default" AC_ARG_ENABLE(nonblocking, AC_HELP_STRING([--enable-nonblocking],[Enable non-blocking communications]) AC_HELP_STRING([--disable-nonblocking],[Disable non-blocking communications]), OPT_NONBLOCKING=$enableval) case "$OPT_NONBLOCKING" in no) dnl --disable-nonblocking option used want_nonblocking="no" ;; default) dnl configure option not specified want_nonblocking="yes" ;; *) dnl --enable-nonblocking option used want_nonblocking="yes" ;; esac AC_MSG_RESULT([$want_nonblocking]) ]) dnl CURL_CHECK_OPTION_OPTIMIZE dnl ------------------------------------------------- dnl Verify if configure has been invoked with option dnl --enable-optimize or --disable-optimize, and set dnl shell variable want_optimize value as appropriate. AC_DEFUN([CURL_CHECK_OPTION_OPTIMIZE], [ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_MSG_CHECKING([whether to enable compiler optimizer]) OPT_COMPILER_OPTIMIZE="default" AC_ARG_ENABLE(optimize, AC_HELP_STRING([--enable-optimize],[Enable compiler optimizations]) AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]), OPT_COMPILER_OPTIMIZE=$enableval) case "$OPT_COMPILER_OPTIMIZE" in no) dnl --disable-optimize option used. We will handle this as dnl a request to disable compiler optimizations if possible. dnl If the compiler is known CFLAGS and CPPFLAGS will be dnl overridden, otherwise this can not be honored. want_optimize="no" AC_MSG_RESULT([no]) ;; default) dnl configure's optimize option not specified. Initially we will dnl handle this as a a request contrary to configure's setting dnl for --enable-debug. IOW, initially, for debug-enabled builds dnl this will be handled as a request to disable optimizations if dnl possible, and for debug-disabled builds this will be handled dnl initially as a request to enable optimizations if possible. dnl Finally, if the compiler is known and CFLAGS and CPPFLAGS do dnl not have any optimizer flag the request will be honored, in dnl any other case the request can not be honored. dnl IOW, existing optimizer flags defined in CFLAGS or CPPFLAGS dnl will always take precedence over any initial assumption. if test "$want_debug" = "yes"; then want_optimize="assume_no" AC_MSG_RESULT([not specified (assuming no)]) else want_optimize="assume_yes" AC_MSG_RESULT([not specified (assuming yes)]) fi ;; *) dnl --enable-optimize option used. We will handle this as dnl a request to enable compiler optimizations if possible. dnl If the compiler is known CFLAGS and CPPFLAGS will be dnl overridden, otherwise this can not be honored. want_optimize="yes" AC_MSG_RESULT([yes]) ;; esac ]) dnl CURL_CHECK_OPTION_WARNINGS dnl ------------------------------------------------- dnl Verify if configure has been invoked with option dnl --enable-warnings or --disable-warnings, and set dnl shell variable want_warnings as appropriate. AC_DEFUN([CURL_CHECK_OPTION_WARNINGS], [ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl AC_BEFORE([$0],[CURL_CHECK_PROG_CC])dnl AC_MSG_CHECKING([whether to enable strict compiler warnings]) OPT_COMPILER_WARNINGS="default" AC_ARG_ENABLE(warnings, AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings]) AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]), OPT_COMPILER_WARNINGS=$enableval) case "$OPT_COMPILER_WARNINGS" in no) dnl --disable-warnings option used want_warnings="no" ;; default) dnl configure option not specified, so dnl use same setting as --enable-debug want_warnings="$want_debug" ;; *) dnl --enable-warnings option used want_warnings="yes" ;; esac AC_MSG_RESULT([$want_warnings]) ]) dnl CURL_CHECK_NONBLOCKING_SOCKET dnl ------------------------------------------------- dnl Check for how to set a socket into non-blocking state. AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET], [ AC_REQUIRE([CURL_CHECK_OPTION_NONBLOCKING])dnl AC_REQUIRE([CURL_CHECK_FUNC_FCNTL])dnl AC_REQUIRE([CURL_CHECK_FUNC_IOCTL])dnl AC_REQUIRE([CURL_CHECK_FUNC_IOCTLSOCKET])dnl AC_REQUIRE([CURL_CHECK_FUNC_IOCTLSOCKET_CAMEL])dnl AC_REQUIRE([CURL_CHECK_FUNC_SETSOCKOPT])dnl # tst_method="unknown" if test "$want_nonblocking" = "yes"; then AC_MSG_CHECKING([how to set a socket into non-blocking mode]) if test "x$ac_cv_func_fcntl_o_nonblock" = "xyes"; then tst_method="fcntl O_NONBLOCK" elif test "x$ac_cv_func_ioctl_fionbio" = "xyes"; then tst_method="ioctl FIONBIO" elif test "x$ac_cv_func_ioctlsocket_fionbio" = "xyes"; then tst_method="ioctlsocket FIONBIO" elif test "x$ac_cv_func_ioctlsocket_camel_fionbio" = "xyes"; then tst_method="IoctlSocket FIONBIO" elif test "x$ac_cv_func_setsockopt_so_nonblock" = "xyes"; then tst_method="setsockopt SO_NONBLOCK" fi AC_MSG_RESULT([$tst_method]) if test "$tst_method" = "unknown"; then AC_MSG_WARN([cannot determine non-blocking socket method.]) fi fi if test "$tst_method" = "unknown"; then AC_DEFINE_UNQUOTED(USE_BLOCKING_SOCKETS, 1, [Define to disable non-blocking sockets.]) AC_MSG_WARN([non-blocking sockets disabled.]) fi ])