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dnl Inspired by work Copyright (C) 2006 Luca Filipozzi |
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dnl vim: set fdm=marker sw=2 ts=2 et si: |
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dnl {{{ ax_check_lib_ipv4 |
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AC_DEFUN([AX_CHECK_LIB_IPV4],[ |
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AC_CHECK_FUNC(getaddrinfo, [], AC_SEARCH_LIBS(getaddrinfo, nsl)) |
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AC_CHECK_FUNC(getnameinfo, [], AC_SEARCH_LIBS(getnameinfo, nsl)) |
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AC_SEARCH_LIBS([socket],[socket],,[AC_MSG_ERROR([socket library not found])]) |
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AC_CHECK_TYPES([struct sockaddr_in, struct sockaddr_storage, struct addrinfo],,,[#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netdb.h> |
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]) |
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AC_CHECK_MEMBERS([struct sockaddr_in.sin_len],,,[#include <sys/types.h> |
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<sys/socket.h>]) |
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])dnl }}} |
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dnl {{{ ax_check_lib_ipv6 |
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AC_DEFUN([AX_CHECK_LIB_IPV6],[ |
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AC_CHECK_TYPE([struct sockaddr_in6],[AC_DEFINE([IPV6],[1],[Define to 1 if you have IPv6 support.])],,[#include <netinet/in.h>]) |
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])dnl }}} |
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dnl {{{ ax_arg_enable_ioloop_mechanism (FIXME) |
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AC_DEFUN([AX_ARG_ENABLE_IOLOOP_MECHANISM],[ |
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dnl {{{ allow the user to specify desired mechanism |
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desired_iopoll_mechanism="none" |
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dnl FIXME need to handle arguments a bit better (see ac_arg_disable_block_alloc) |
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AC_ARG_ENABLE([kqueue], [AS_HELP_STRING([--enable-kqueue], [Force kqueue usage.])], [desired_iopoll_mechanism="kqueue"]) |
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AC_ARG_ENABLE([epoll], [AS_HELP_STRING([--enable-epoll], [Force epoll usage.])], [desired_iopoll_mechanism="epoll"]) |
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AC_ARG_ENABLE([devpoll],[AS_HELP_STRING([--enable-devpoll],[Force devpoll usage.])],[desired_iopoll_mechanism="devpoll"]) |
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AC_ARG_ENABLE([poll], [AS_HELP_STRING([--enable-poll], [Force poll usage.])], [desired_iopoll_mechanism="poll"]) |
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AC_ARG_ENABLE([select], [AS_HELP_STRING([--enable-select], [Force select usage.])], [desired_iopoll_mechanism="select"]) |
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dnl }}} |
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dnl {{{ preamble |
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AC_MSG_CHECKING([for optimal/desired iopoll mechanism]) |
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iopoll_mechanism_none=0 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_NONE],[$iopoll_mechanism_none],[no iopoll mechanism]) |
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dnl }}} |
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dnl {{{ check for kqueue mechanism support |
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iopoll_mechanism_kqueue=1 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_KQUEUE],[$iopoll_mechanism_kqueue],[kqueue mechanism]) |
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AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([kevent])],[is_kqueue_mechanism_available="yes"],[is_kqueue_mechanism_available="no"]) |
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dnl }}} |
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dnl {{{ check for epoll oechanism support |
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iopoll_mechanism_epoll=2 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_EPOLL],[$iopoll_mechanism_epoll],[epoll mechanism]) |
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AC_RUN_IFELSE([AC_LANG_PROGRAM([[ |
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#include <sys/epoll.h> |
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#include <sys/syscall.h> |
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#if defined(__stub_epoll_create) || defined(__stub___epoll_create) || defined(EPOLL_NEED_BODY) |
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#if !defined(__NR_epoll_create) |
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#if defined(__ia64__) |
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#define __NR_epoll_create 1243 |
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#elif defined(__x86_64__) |
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#define __NR_epoll_create 214 |
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#elif defined(__sparc64__) || defined(__sparc__) |
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#define __NR_epoll_create 193 |
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#elif defined(__s390__) || defined(__m68k__) |
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#define __NR_epoll_create 249 |
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#elif defined(__ppc64__) || defined(__ppc__) |
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#define __NR_epoll_create 236 |
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#elif defined(__parisc__) || defined(__arm26__) || defined(__arm__) |
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#define __NR_epoll_create 224 |
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#elif defined(__alpha__) |
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#define __NR_epoll_create 407 |
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#elif defined(__sh64__) |
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#define __NR_epoll_create 282 |
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#elif defined(__i386__) || defined(__sh__) || defined(__m32r__) || defined(__h8300__) || defined(__frv__) |
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#define __NR_epoll_create 254 |
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#else |
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#error No system call numbers defined for epoll family. |
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#endif |
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#endif |
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_syscall1(int, epoll_create, int, size) |
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#endif |
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]], [[ return epoll_create(256) == -1 ? 1 : 0 ]])], |
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[is_epoll_mechanism_available="yes"],[is_epoll_mechanism_available="no"]) |
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dnl }}} |
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dnl {{{ check for devpoll mechanism support |
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iopoll_mechanism_devpoll=3 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_DEVPOLL],[$iopoll_mechanism_devpoll],[devpoll mechanism]) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"]) |
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if test "$is_devpoll_mechanism_available" = "yes" ; then |
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AC_DEFINE([HAVE_DEVPOLL_H],[1],[Define to 1 if you have the <devpoll.h> header file.]) |
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fi |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"]) |
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if test "$is_devpoll_mechanism_available" = "yes" ; then |
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AC_DEFINE([HAVE_SYS_DEVPOLL_H],[1],[Define to 1 if you have the <sys/devpoll.h> header file.]) |
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fi |
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dnl }}} |
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dnl {{{ check for poll mechanism support |
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iopoll_mechanism_poll=4 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_POLL],[$iopoll_mechanism_poll],[poll mechanism]) |
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AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([poll])],[is_poll_mechanism_available="yes"],[is_poll_mechanism_available="no"]) |
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dnl }}} |
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dnl {{{ check for select mechanism support |
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iopoll_mechanism_select=5 |
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AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_SELECT],[$iopoll_mechanism_select],[select mechanism]) |
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AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([select])],[is_select_mechanism_available="yes"],[is_select_mechanism_available="no"]) |
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dnl }}} |
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dnl {{{ determine the optimal mechanism |
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optimal_iopoll_mechanism="none" |
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for mechanism in "kqueue" "epoll" "devpoll" "poll" "select" ; do # order is important |
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eval "is_optimal_iopoll_mechanism_available=\$is_${mechanism}_mechanism_available" |
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if test "$is_optimal_iopoll_mechanism_available" = "yes" ; then |
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optimal_iopoll_mechanism="$mechanism" |
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break |
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fi |
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done |
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dnl }}} |
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dnl {{{ select between optimal mechanism and desired mechanism (if specified) |
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if test "$desired_iopoll_mechanism" = "none" ; then |
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if test "$optimal_iopoll_mechanism" = "none" ; then |
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AC_MSG_RESULT([none]) |
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AC_MSG_ERROR([no iopoll mechanism found!]) |
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else |
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selected_iopoll_mechanism=$optimal_iopoll_mechanism |
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AC_MSG_RESULT([$selected_iopoll_mechanism]) |
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fi |
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else |
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eval "is_desired_iopoll_mechanism_available=\$is_${desired_iopoll_mechanism}_mechanism_available" |
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if test "$is_desired_iopoll_mechanism_available" = "yes" ; then |
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selected_iopoll_mechanism=$desired_iopoll_mechanism |
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AC_MSG_RESULT([$selected_iopoll_mechanism]) |
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else |
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AC_MSG_RESULT([none]) |
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AC_MSG_ERROR([desired iopoll mechanism, $desired_iopoll_mechanism, is not available]) |
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fi |
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fi |
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dnl }}} |
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dnl {{{ postamble |
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eval "use_iopoll_mechanism=\$iopoll_mechanism_${selected_iopoll_mechanism}" |
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AC_DEFINE_UNQUOTED([USE_IOPOLL_MECHANISM],[$use_iopoll_mechanism],[use this iopoll mechanism]) |
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dnl }}} |
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])dnl }}} |
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dnl {{{ ax_arg_enable_halfops |
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AC_DEFUN([AX_ARG_ENABLE_HALFOPS],[ |
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AC_ARG_ENABLE([halfops],[AS_HELP_STRING([--enable-halfops],[Enable halfops support.])],[halfops="$enableval"],[halfops="no"]) |
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if test "$halfops" = "yes" ; then |
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AC_DEFINE([HALFOPS],[1],[Define to 1 if you want halfops support.]) |
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fi |
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])dnl }}} |
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dnl {{{ ax_arg_enable_debugging |
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AC_DEFUN([AX_ARG_ENABLE_DEBUGGING],[ |
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AC_ARG_ENABLE([debugging],[AS_HELP_STRING([--enable-debugging],[Enable debugging.])],[debugging="$enableval"],[debugging="no"]) |
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if test "$debugging" = "yes" ; then |
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CFLAGS="-Wall -g -O0" |
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fi |
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])dnl }}} |
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dnl {{{ ax_arg_enable_warnings |
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AC_DEFUN([AX_ARG_ENABLE_WARNINGS],[ |
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AC_ARG_ENABLE([warnings],[AS_HELP_STRING([--enable-warnings],[Enable compiler warnings.])],[warnings="$enableval"],[warnings="no"]) |
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if test "$warnings" = "yes" ; then |
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AX_APPEND_COMPILE_FLAGS([-Wall]) |
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AX_APPEND_COMPILE_FLAGS([-Wextra]) |
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AX_APPEND_COMPILE_FLAGS([-Wno-unused]) |
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AX_APPEND_COMPILE_FLAGS([-Wcast-qual]) |
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AX_APPEND_COMPILE_FLAGS([-Wcast-align]) |
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AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast]) |
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AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations]) |
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AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes]) |
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AX_APPEND_COMPILE_FLAGS([-Wnested-externs]) |
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls]) |
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AX_APPEND_COMPILE_FLAGS([-Wshadow]) |
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AX_APPEND_COMPILE_FLAGS([-Wwrite-strings]) |
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AX_APPEND_COMPILE_FLAGS([-Wundef]) |
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fi |
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])dnl }}} |
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]) dnl }}} |
