/[svn]/branches/newio/acinclude.m4
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revision 2382 by michael, Sat Jul 6 16:22:05 2013 UTC revision 2383 by michael, Sat Jul 6 17:05:28 2013 UTC
# Line 16  dnl {{{ ax_check_lib_ipv6 Line 16  dnl {{{ ax_check_lib_ipv6
16  AC_DEFUN([AX_CHECK_LIB_IPV6],[  AC_DEFUN([AX_CHECK_LIB_IPV6],[
17    AC_CHECK_TYPE([struct sockaddr_in6],[AC_DEFINE([IPV6],[1],[Define to 1 if you have IPv6 support.])],,[#include <netinet/in.h>])    AC_CHECK_TYPE([struct sockaddr_in6],[AC_DEFINE([IPV6],[1],[Define to 1 if you have IPv6 support.])],,[#include <netinet/in.h>])
18  ])dnl }}}  ])dnl }}}
 dnl {{{ ax_arg_enable_ioloop_mechanism (FIXME)  
 AC_DEFUN([AX_ARG_ENABLE_IOLOOP_MECHANISM],[  
   dnl {{{ allow the user to specify desired mechanism  
   desired_iopoll_mechanism="none"  
   dnl FIXME need to handle arguments a bit better (see ac_arg_disable_block_alloc)  
   AC_ARG_ENABLE([kqueue], [AS_HELP_STRING([--enable-kqueue], [Force kqueue usage.])], [desired_iopoll_mechanism="kqueue"])  
   AC_ARG_ENABLE([epoll],  [AS_HELP_STRING([--enable-epoll],  [Force epoll usage.])],  [desired_iopoll_mechanism="epoll"])  
   AC_ARG_ENABLE([devpoll],[AS_HELP_STRING([--enable-devpoll],[Force devpoll usage.])],[desired_iopoll_mechanism="devpoll"])  
   AC_ARG_ENABLE([poll],   [AS_HELP_STRING([--enable-poll],   [Force poll usage.])],   [desired_iopoll_mechanism="poll"])  
   AC_ARG_ENABLE([select], [AS_HELP_STRING([--enable-select], [Force select usage.])], [desired_iopoll_mechanism="select"])  
   dnl }}}  
   dnl {{{ preamble  
   AC_MSG_CHECKING([for optimal/desired iopoll mechanism])  
   iopoll_mechanism_none=0  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_NONE],[$iopoll_mechanism_none],[no iopoll mechanism])  
   dnl }}}  
   dnl {{{ check for kqueue mechanism support  
   iopoll_mechanism_kqueue=1  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_KQUEUE],[$iopoll_mechanism_kqueue],[kqueue mechanism])  
   AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([kevent])],[is_kqueue_mechanism_available="yes"],[is_kqueue_mechanism_available="no"])  
   dnl }}}  
   dnl {{{ check for epoll oechanism support  
   iopoll_mechanism_epoll=2  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_EPOLL],[$iopoll_mechanism_epoll],[epoll mechanism])  
   AC_RUN_IFELSE([AC_LANG_PROGRAM([[  
 #include <sys/epoll.h>  
 #include <sys/syscall.h>  
 #if defined(__stub_epoll_create) || defined(__stub___epoll_create) || defined(EPOLL_NEED_BODY)  
 #if !defined(__NR_epoll_create)  
 #if defined(__ia64__)  
 #define __NR_epoll_create 1243  
 #elif defined(__x86_64__)  
 #define __NR_epoll_create 214  
 #elif defined(__sparc64__) || defined(__sparc__)  
 #define __NR_epoll_create 193  
 #elif defined(__s390__) || defined(__m68k__)  
 #define __NR_epoll_create 249  
 #elif defined(__ppc64__) || defined(__ppc__)  
 #define __NR_epoll_create 236  
 #elif defined(__parisc__) || defined(__arm26__) || defined(__arm__)  
 #define __NR_epoll_create 224  
 #elif defined(__alpha__)  
 #define __NR_epoll_create 407  
 #elif defined(__sh64__)  
 #define __NR_epoll_create 282  
 #elif defined(__i386__) || defined(__sh__) || defined(__m32r__) || defined(__h8300__) || defined(__frv__)  
 #define __NR_epoll_create 254  
 #else  
 #error No system call numbers defined for epoll family.  
 #endif  
 #endif  
 _syscall1(int, epoll_create, int, size)  
 #endif  
 ]], [[ return epoll_create(256) == -1 ? 1 : 0 ]])],  
   [is_epoll_mechanism_available="yes"],[is_epoll_mechanism_available="no"])  
   dnl }}}  
   dnl {{{ check for devpoll mechanism support  
   iopoll_mechanism_devpoll=3  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_DEVPOLL],[$iopoll_mechanism_devpoll],[devpoll mechanism])  
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])  
   if test "$is_devpoll_mechanism_available" = "yes" ; then  
     AC_DEFINE([HAVE_DEVPOLL_H],[1],[Define to 1 if you have the <devpoll.h> header file.])  
   fi  
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])  
   if test "$is_devpoll_mechanism_available" = "yes" ; then  
     AC_DEFINE([HAVE_SYS_DEVPOLL_H],[1],[Define to 1 if you have the <sys/devpoll.h> header file.])  
   fi  
   dnl }}}  
   dnl {{{ check for poll mechanism support  
   iopoll_mechanism_poll=4  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_POLL],[$iopoll_mechanism_poll],[poll mechanism])  
   AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([poll])],[is_poll_mechanism_available="yes"],[is_poll_mechanism_available="no"])  
   dnl }}}  
   dnl {{{ check for select mechanism support  
   iopoll_mechanism_select=5  
   AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_SELECT],[$iopoll_mechanism_select],[select mechanism])  
   AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([select])],[is_select_mechanism_available="yes"],[is_select_mechanism_available="no"])  
   dnl }}}  
   dnl {{{ determine the optimal mechanism  
   optimal_iopoll_mechanism="none"  
   for mechanism in "kqueue" "epoll" "devpoll" "poll" "select" ; do # order is important  
     eval "is_optimal_iopoll_mechanism_available=\$is_${mechanism}_mechanism_available"  
     if test "$is_optimal_iopoll_mechanism_available" = "yes" ; then  
       optimal_iopoll_mechanism="$mechanism"  
       break  
     fi  
   done  
   dnl }}}  
   dnl {{{ select between optimal mechanism and desired mechanism (if specified)  
   if test "$desired_iopoll_mechanism" = "none" ; then  
     if test "$optimal_iopoll_mechanism" = "none" ; then  
       AC_MSG_RESULT([none])  
       AC_MSG_ERROR([no iopoll mechanism found!])  
     else  
       selected_iopoll_mechanism=$optimal_iopoll_mechanism  
       AC_MSG_RESULT([$selected_iopoll_mechanism])  
     fi  
   else  
     eval "is_desired_iopoll_mechanism_available=\$is_${desired_iopoll_mechanism}_mechanism_available"  
     if test "$is_desired_iopoll_mechanism_available" = "yes" ; then  
       selected_iopoll_mechanism=$desired_iopoll_mechanism  
       AC_MSG_RESULT([$selected_iopoll_mechanism])  
     else  
       AC_MSG_RESULT([none])  
       AC_MSG_ERROR([desired iopoll mechanism, $desired_iopoll_mechanism, is not available])  
     fi  
   fi  
   dnl }}}  
   dnl {{{ postamble  
   eval "use_iopoll_mechanism=\$iopoll_mechanism_${selected_iopoll_mechanism}"  
   AC_DEFINE_UNQUOTED([USE_IOPOLL_MECHANISM],[$use_iopoll_mechanism],[use this iopoll mechanism])  
   dnl }}}  
 ])dnl }}}  
19  dnl {{{ ax_arg_enable_halfops  dnl {{{ ax_arg_enable_halfops
20  AC_DEFUN([AX_ARG_ENABLE_HALFOPS],[  AC_DEFUN([AX_ARG_ENABLE_HALFOPS],[
21    AC_ARG_ENABLE([halfops],[AS_HELP_STRING([--enable-halfops],[Enable halfops support.])],[halfops="$enableval"],[halfops="no"])    AC_ARG_ENABLE([halfops],[AS_HELP_STRING([--enable-halfops],[Enable halfops support.])],[halfops="$enableval"],[halfops="no"])

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