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root/svn/ircd-hybrid-8/acinclude.m4
Revision: 1013
Committed: Sun Oct 18 14:26:49 2009 UTC (14 years, 5 months ago) by michael
Original Path: ircd-hybrid-7.2/acinclude.m4
File size: 10810 byte(s)
Log Message:
- Add -Wextra -Wcast-align -Wbad-function-cast to CFLAGS if --enable-warnings is specified
- Fixed several compile warnings
- 64-bit cleanliness fixes, e.g., reorganize data structures to reduce storage/unnecessary padding

File Contents

# User Rev Content
1 stu 908 dnl Inspired by work Copyright (C) 2006 Luca Filipozzi
2     dnl vim: set fdm=marker sw=2 ts=2 et si:
3     dnl {{{ ax_check_lib_ipv4
4     AC_DEFUN([AX_CHECK_LIB_IPV4],[
5     AC_SEARCH_LIBS([socket],[socket],,[AC_MSG_ERROR([socket library not found])])
6     AC_CHECK_FUNCS([inet_aton inet_ntop inet_pton])
7 db 941 AC_CHECK_TYPES([struct sockaddr_in, struct sockaddr_storage, struct addrinfo],,,[#include <sys/types.h>
8     #include <sys/socket.h>
9     #include <netdb.h>
10     ])
11     AC_CHECK_MEMBERS([struct sockaddr_in.sin_len],,,[#include <sys/types.h>
12     <sys/socket.h>])
13 stu 908 ])dnl }}}
14     dnl {{{ ax_check_lib_ipv6
15     AC_DEFUN([AX_CHECK_LIB_IPV6],[
16 db 941 AC_CHECK_TYPES([struct sockaddr_in6],,[AC_DEFINE([IPV6],[1],[Define to 1 if you have IPv6 support.])],,[#include <sys/types.h>
17     <sys/socket.h>])
18 stu 908 ])dnl }}}
19     dnl {{{ ax_arg_enable_ioloop_mechanism (FIXME)
20     AC_DEFUN([AX_ARG_ENABLE_IOLOOP_MECHANISM],[
21     dnl {{{ allow the user to specify desired mechanism
22     desired_iopoll_mechanism="none"
23     dnl FIXME need to handle arguments a bit better (see ac_arg_disable_block_alloc)
24     AC_ARG_ENABLE([kqueue], [AC_HELP_STRING([--enable-kqueue], [Force kqueue usage.])], [desired_iopoll_mechanism="kqueue"])
25     AC_ARG_ENABLE([epoll], [AC_HELP_STRING([--enable-epoll], [Force epoll usage.])], [desired_iopoll_mechanism="epoll"])
26     AC_ARG_ENABLE([devpoll],[AC_HELP_STRING([--enable-devpoll],[Force devpoll usage.])],[desired_iopoll_mechanism="devpoll"])
27     AC_ARG_ENABLE([rtsigio],[AC_HELP_STRING([--enable-rtsigio],[Force rtsigio usage.])],[desired_iopoll_mechanism="rtsigio"])
28     AC_ARG_ENABLE([poll], [AC_HELP_STRING([--enable-poll], [Force poll usage.])], [desired_iopoll_mechanism="poll"])
29     AC_ARG_ENABLE([select], [AC_HELP_STRING([--enable-select], [Force select usage.])], [desired_iopoll_mechanism="select"])
30     dnl }}}
31     dnl {{{ preamble
32     AC_MSG_CHECKING([for optimal/desired iopoll mechanism])
33     iopoll_mechanism_none=0
34     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_NONE],[$iopoll_mechanism_none],[no iopoll mechanism])
35     dnl }}}
36     dnl {{{ check for kqueue mechanism support
37     iopoll_mechanism_kqueue=1
38     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_KQUEUE],[$iopoll_mechanism_kqueue],[kqueue mechanism])
39     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([kevent])],[is_kqueue_mechanism_available="yes"],[is_kqueue_mechanism_available="no"])
40     dnl }}}
41     dnl {{{ check for epoll oechanism support
42     iopoll_mechanism_epoll=2
43     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_EPOLL],[$iopoll_mechanism_epoll],[epoll mechanism])
44     AC_RUN_IFELSE([
45     #include <sys/epoll.h>
46     #include <sys/syscall.h>
47     #if defined(__stub_epoll_create) || defined(__stub___epoll_create) || defined(EPOLL_NEED_BODY)
48     #if !defined(__NR_epoll_create)
49     #if defined(__ia64__)
50     #define __NR_epoll_create 1243
51     #elif defined(__x86_64__)
52     #define __NR_epoll_create 214
53     #elif defined(__sparc64__) || defined(__sparc__)
54     #define __NR_epoll_create 193
55     #elif defined(__s390__) || defined(__m68k__)
56     #define __NR_epoll_create 249
57     #elif defined(__ppc64__) || defined(__ppc__)
58     #define __NR_epoll_create 236
59     #elif defined(__parisc__) || defined(__arm26__) || defined(__arm__)
60     #define __NR_epoll_create 224
61     #elif defined(__alpha__)
62     #define __NR_epoll_create 407
63     #elif defined(__sh64__)
64     #define __NR_epoll_create 282
65     #elif defined(__i386__) || defined(__sh__) || defined(__m32r__) || defined(__h8300__) || defined(__frv__)
66     #define __NR_epoll_create 254
67     #else
68     #error No system call numbers defined for epoll family.
69     #endif
70     #endif
71     _syscall1(int, epoll_create, int, size)
72     #endif
73     main() { return epoll_create(256) == -1 ? 1 : 0; }
74     ],[is_epoll_mechanism_available="yes"],[is_epoll_mechanism_available="no"])
75     dnl }}}
76     dnl {{{ check for devpoll mechanism support
77     iopoll_mechanism_devpoll=3
78     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_DEVPOLL],[$iopoll_mechanism_devpoll],[devpoll mechanism])
79     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])
80     if test "$is_devpoll_mechanism_available" = "yes" ; then
81     AC_DEFINE([HAVE_DEVPOLL_H],[1],[Define to 1 if you have the <devpoll.h> header file.])
82     fi
83     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])
84     if test "$is_devpoll_mechanism_available" = "yes" ; then
85     AC_DEFINE([HAVE_SYS_DEVPOLL_H],[1],[Define to 1 if you have the <sys/devpoll.h> header file.])
86     fi
87     dnl }}}
88     dnl {{{ check for rtsigio mechanism support
89     iopoll_mechanism_rtsigio=4
90     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_RTSIGIO],[$iopoll_mechanism_rtsigio],[rtsigio mechanism])
91     AC_RUN_IFELSE([AC_LANG_PROGRAM([
92     #include <fcntl.h>
93     #ifdef F_SETSIG
94     main () { return 0; } /* F_SETSIG defined */
95     #else
96     main () { return 1; } /* F_SETSIG not defined */
97     #endif
98     ])],[is_rtsigio_mechanism_available="yes"],[is_rtsigio_mechanism_available="no"])
99     dnl }}}
100     dnl {{{ check for poll mechanism support
101     iopoll_mechanism_poll=5
102     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_POLL],[$iopoll_mechanism_poll],[poll mechanism])
103     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([poll])],[is_poll_mechanism_available="yes"],[is_poll_mechanism_available="no"])
104     dnl }}}
105     dnl {{{ check for select mechanism support
106     iopoll_mechanism_select=6
107     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_SELECT],[$iopoll_mechanism_select],[select mechanism])
108     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([select])],[is_select_mechanism_available="yes"],[is_select_mechanism_available="no"])
109     dnl }}}
110     dnl {{{ determine the optimal mechanism
111     optimal_iopoll_mechanism="none"
112     for mechanism in "kqueue" "epoll" "devpoll" "rtsigio" "poll" "select" ; do # order is important
113     eval "is_optimal_iopoll_mechanism_available=\$is_${mechanism}_mechanism_available"
114     if test "$is_optimal_iopoll_mechanism_available" = "yes" ; then
115     optimal_iopoll_mechanism="$mechanism"
116     break
117     fi
118     done
119     dnl }}}
120     dnl {{{ select between optimal mechanism and desired mechanism (if specified)
121     if test "$desired_iopoll_mechanism" = "none" ; then
122     if test "$optimal_iopoll_mechanism" = "none" ; then
123     AC_MSG_RESULT([none])
124     AC_MSG_ERROR([no iopoll mechanism found!])
125     else
126     selected_iopoll_mechanism=$optimal_iopoll_mechanism
127     AC_MSG_RESULT([$selected_iopoll_mechanism])
128     fi
129     else
130     eval "is_desired_iopoll_mechanism_available=\$is_${desired_iopoll_mechanism}_mechanism_available"
131     if test "$is_desired_iopoll_mechanism_available" = "yes" ; then
132     selected_iopoll_mechanism=$desired_iopoll_mechanism
133     AC_MSG_RESULT([$selected_iopoll_mechanism])
134     else
135     AC_MSG_RESULT([none])
136     AC_MSG_ERROR([desired iopoll mechanism, $desired_iopoll_mechanism, is not available])
137     fi
138     fi
139     dnl }}}
140     dnl {{{ postamble
141     eval "use_iopoll_mechanism=\$iopoll_mechanism_${selected_iopoll_mechanism}"
142     AC_DEFINE_UNQUOTED([USE_IOPOLL_MECHANISM],[$use_iopoll_mechanism],[use this iopoll mechanism])
143     dnl }}}
144     ])dnl }}}
145     dnl {{{ ax_arg_with_topiclen
146     AC_DEFUN([AX_ARG_WITH_TOPICLEN],[
147     AC_ARG_WITH([topiclen],[AC_HELP_STRING([--with-topiclen=<value>],[Set topic length (default 160).])],[topiclen="$withval"],[topiclen="160"])
148     AC_DEFINE_UNQUOTED([TOPICLEN],[($topiclen+1)],[Length of topics.])
149     ])dnl }}}
150     dnl {{{ ax_arg_with_nicklen
151     AC_DEFUN([AX_ARG_WITH_NICKLEN],[
152     AC_ARG_WITH([nicklen],[AC_HELP_STRING([--with-nicklen=<value>],[Set nickname length (default 9).])],[nicklen="$withval"],[nicklen="9"])
153     AC_DEFINE_UNQUOTED([NICKLEN],[($nicklen+1)],[Length of nicknames.])
154     ])dnl }}}
155     dnl {{{ ax_arg_enable_efnet
156     AC_DEFUN([AX_ARG_ENABLE_EFNET],[
157     AC_ARG_ENABLE([efnet],[AC_HELP_STRING([--enable-efnet],[For IRCDs running on EFnet.])],[efnet="$enableval"],[efnet="no"])
158     if test "$efnet" = "yes" ; then
159     use_efnet="yes"
160     AC_DEFINE([EFNET],[1],[Define to 1 if this server will be an EFnet server.])
161     AC_DEFINE([TS5_ONLY],[1],[If Defined to 1 server links to your network must have a minimum of TS5.])
162     else
163     use_efnet="no"
164     fi
165     AM_CONDITIONAL([EFNET],[test "$use_efnet" = "yes"])
166     ])dnl }}}
167     dnl {{{ ax_arg_enable_halfops
168     AC_DEFUN([AX_ARG_ENABLE_HALFOPS],[
169     AC_ARG_ENABLE([halfops],[AC_HELP_STRING([--enable-halfops],[Enable halfops support.])],[halfops="$enableval"],[halfops="no"])
170     if test "$halfops" = "yes" ; then
171     AC_DEFINE([HALFOPS],[1],[Define to 1 if you want halfops support.])
172     fi
173     ])dnl }}}
174     dnl {{{ ax_arg_enable_debugging
175     AC_DEFUN([AX_ARG_ENABLE_DEBUGGING],[
176     AC_ARG_ENABLE([debugging],[AC_HELP_STRING([--enable-debugging],[Enable debugging.])],[debugging="$enableval"],[debugging="no"])
177     if test "$debugging" = "yes" ; then
178     AC_DEFINE([DEBUG],[1],[Define to 1 to enable debugging.])
179     CFLAGS="$CFLAGS -Wall -Werror -g -O0"
180     else
181     AC_DEFINE([NDEBUG],[1],[Define to 1 to disable debugging.])
182     fi
183     ])dnl }}}
184     dnl {{{ ax_arg_enable_warnings
185     AC_DEFUN([AX_ARG_ENABLE_WARNINGS],[
186     AC_ARG_ENABLE([warnings],[AC_HELP_STRING([--enable-warnings],[Enable compiler warnings.])],[warnings="$enableval"],[warnings="no"])
187     if test "$warnings" = "yes" ; then
188 michael 1013 CFLAGS="-Wall -Wextra -Wno-unused -Wcast-qual -Wcast-align -Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wredundant-decls -Wshadow -Wwrite-strings -Wundef"
189 stu 908 fi
190     ])dnl }}}
191     dnl {{{ ax_arg_enable_syslog
192     AC_DEFUN([AX_ARG_ENABLE_SYSLOG],[
193     AC_CHECK_HEADERS([syslog.h sys/syslog.h])
194     AC_ARG_ENABLE([syslog],[AC_HELP_STRING([--enable-syslog="EVENTS"],[Enable syslog for events: users oper (space separated in quotes; default: disabled).])],[syslog="$enableval"],[syslog="no"])
195     if test "$enableval" != "no" ; then
196     for option in $enableval ; do
197     case "$option" in
198     users) AC_DEFINE([SYSLOG_USERS],[1],[Send user log stuff to syslog.]) ;;
199     oper) AC_DEFINE([SYSLOG_OPER],[1],[Send oper log stuff to syslog.]) ;;
200     yes) : ;;
201     *) AC_MSG_ERROR([invalid value for --enable-syslog: $option]) ;;
202     esac
203     done
204     AC_DEFINE([USE_SYSLOG],[1],[Define to 1 if you want to use syslog.])
205     fi
206     ])dnl }}}
207     dnl {{{ ax_arg_with_syslog_facility
208     AC_DEFUN([AX_ARG_WITH_SYSLOG],[
209     AC_ARG_WITH([syslog-facility],[AC_HELP_STRING([--with-syslog-facility=LOG],[Define the syslog facility to use (default: LOG_LOCAL4)])],[syslog_facility="$withval"],[syslog_facility="LOG_LOCAL4"])
210     AC_DEFINE_UNQUOTED([LOG_FACILITY],[$syslog_facility],[Set to syslog facility to use.])
211     ])dnl }}}
212     dnl {{{ ac_define_dir
213     dnl http://autoconf-archive.cryp.to/ac_define_dir.html
214     AC_DEFUN([AC_DEFINE_DIR], [
215     prefix_NONE=
216     exec_prefix_NONE=
217     test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
218     test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
219     eval ac_define_dir="\"[$]$2\""
220     eval ac_define_dir="\"$ac_define_dir\""
221     AC_SUBST($1, "$ac_define_dir")
222     AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3])
223     test "$prefix_NONE" && prefix=NONE
224     test "$exec_prefix_NONE" && exec_prefix=NONE
225     ])dnl }}}
226     ]) dnl }}}