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root/svn/ircd-hybrid/branches/8.1.x/acinclude.m4
Revision: 2500
Committed: Fri Oct 25 20:32:07 2013 UTC (10 years, 5 months ago) by michael
File size: 7811 byte(s)
Log Message:
- Added m4/ac_define_dir.m4

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 michael 1670 AC_CHECK_FUNC(getaddrinfo, [], AC_SEARCH_LIBS(getaddrinfo, nsl))
6     AC_CHECK_FUNC(getnameinfo, [], AC_SEARCH_LIBS(getnameinfo, nsl))
7 stu 908 AC_SEARCH_LIBS([socket],[socket],,[AC_MSG_ERROR([socket library not found])])
8 db 941 AC_CHECK_TYPES([struct sockaddr_in, struct sockaddr_storage, struct addrinfo],,,[#include <sys/types.h>
9     #include <sys/socket.h>
10     #include <netdb.h>
11     ])
12     AC_CHECK_MEMBERS([struct sockaddr_in.sin_len],,,[#include <sys/types.h>
13     <sys/socket.h>])
14 stu 908 ])dnl }}}
15     dnl {{{ ax_check_lib_ipv6
16     AC_DEFUN([AX_CHECK_LIB_IPV6],[
17 michael 1123 AC_CHECK_TYPE([struct sockaddr_in6],[AC_DEFINE([IPV6],[1],[Define to 1 if you have IPv6 support.])],,[#include <netinet/in.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 michael 1374 AC_ARG_ENABLE([kqueue], [AS_HELP_STRING([--enable-kqueue], [Force kqueue usage.])], [desired_iopoll_mechanism="kqueue"])
25     AC_ARG_ENABLE([epoll], [AS_HELP_STRING([--enable-epoll], [Force epoll usage.])], [desired_iopoll_mechanism="epoll"])
26     AC_ARG_ENABLE([devpoll],[AS_HELP_STRING([--enable-devpoll],[Force devpoll usage.])],[desired_iopoll_mechanism="devpoll"])
27     AC_ARG_ENABLE([poll], [AS_HELP_STRING([--enable-poll], [Force poll usage.])], [desired_iopoll_mechanism="poll"])
28     AC_ARG_ENABLE([select], [AS_HELP_STRING([--enable-select], [Force select usage.])], [desired_iopoll_mechanism="select"])
29 stu 908 dnl }}}
30     dnl {{{ preamble
31     AC_MSG_CHECKING([for optimal/desired iopoll mechanism])
32     iopoll_mechanism_none=0
33     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_NONE],[$iopoll_mechanism_none],[no iopoll mechanism])
34     dnl }}}
35     dnl {{{ check for kqueue mechanism support
36     iopoll_mechanism_kqueue=1
37     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_KQUEUE],[$iopoll_mechanism_kqueue],[kqueue mechanism])
38     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([kevent])],[is_kqueue_mechanism_available="yes"],[is_kqueue_mechanism_available="no"])
39     dnl }}}
40     dnl {{{ check for epoll oechanism support
41     iopoll_mechanism_epoll=2
42     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_EPOLL],[$iopoll_mechanism_epoll],[epoll mechanism])
43 michael 1106 AC_RUN_IFELSE([AC_LANG_PROGRAM([[
44 stu 908 #include <sys/epoll.h>
45     #include <sys/syscall.h>
46     #if defined(__stub_epoll_create) || defined(__stub___epoll_create) || defined(EPOLL_NEED_BODY)
47     #if !defined(__NR_epoll_create)
48     #if defined(__ia64__)
49     #define __NR_epoll_create 1243
50     #elif defined(__x86_64__)
51     #define __NR_epoll_create 214
52     #elif defined(__sparc64__) || defined(__sparc__)
53     #define __NR_epoll_create 193
54     #elif defined(__s390__) || defined(__m68k__)
55     #define __NR_epoll_create 249
56     #elif defined(__ppc64__) || defined(__ppc__)
57     #define __NR_epoll_create 236
58     #elif defined(__parisc__) || defined(__arm26__) || defined(__arm__)
59     #define __NR_epoll_create 224
60     #elif defined(__alpha__)
61     #define __NR_epoll_create 407
62     #elif defined(__sh64__)
63     #define __NR_epoll_create 282
64     #elif defined(__i386__) || defined(__sh__) || defined(__m32r__) || defined(__h8300__) || defined(__frv__)
65     #define __NR_epoll_create 254
66     #else
67     #error No system call numbers defined for epoll family.
68     #endif
69     #endif
70     _syscall1(int, epoll_create, int, size)
71     #endif
72 michael 1106 ]], [[ return epoll_create(256) == -1 ? 1 : 0 ]])],
73     [is_epoll_mechanism_available="yes"],[is_epoll_mechanism_available="no"])
74 stu 908 dnl }}}
75     dnl {{{ check for devpoll mechanism support
76     iopoll_mechanism_devpoll=3
77     AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_DEVPOLL],[$iopoll_mechanism_devpoll],[devpoll mechanism])
78     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])
79     if test "$is_devpoll_mechanism_available" = "yes" ; then
80     AC_DEFINE([HAVE_DEVPOLL_H],[1],[Define to 1 if you have the <devpoll.h> header file.])
81     fi
82     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/devpoll.h>])],[is_devpoll_mechanism_available="yes"],[is_devpoll_mechanism_available="no"])
83     if test "$is_devpoll_mechanism_available" = "yes" ; then
84     AC_DEFINE([HAVE_SYS_DEVPOLL_H],[1],[Define to 1 if you have the <sys/devpoll.h> header file.])
85     fi
86     dnl }}}
87     dnl {{{ check for poll mechanism support
88 michael 1736 iopoll_mechanism_poll=4
89 stu 908 AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_POLL],[$iopoll_mechanism_poll],[poll mechanism])
90     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([poll])],[is_poll_mechanism_available="yes"],[is_poll_mechanism_available="no"])
91     dnl }}}
92     dnl {{{ check for select mechanism support
93 michael 1736 iopoll_mechanism_select=5
94 stu 908 AC_DEFINE_UNQUOTED([__IOPOLL_MECHANISM_SELECT],[$iopoll_mechanism_select],[select mechanism])
95     AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([select])],[is_select_mechanism_available="yes"],[is_select_mechanism_available="no"])
96     dnl }}}
97     dnl {{{ determine the optimal mechanism
98     optimal_iopoll_mechanism="none"
99 michael 1736 for mechanism in "kqueue" "epoll" "devpoll" "poll" "select" ; do # order is important
100 stu 908 eval "is_optimal_iopoll_mechanism_available=\$is_${mechanism}_mechanism_available"
101     if test "$is_optimal_iopoll_mechanism_available" = "yes" ; then
102     optimal_iopoll_mechanism="$mechanism"
103     break
104     fi
105     done
106     dnl }}}
107     dnl {{{ select between optimal mechanism and desired mechanism (if specified)
108     if test "$desired_iopoll_mechanism" = "none" ; then
109     if test "$optimal_iopoll_mechanism" = "none" ; then
110     AC_MSG_RESULT([none])
111     AC_MSG_ERROR([no iopoll mechanism found!])
112     else
113     selected_iopoll_mechanism=$optimal_iopoll_mechanism
114     AC_MSG_RESULT([$selected_iopoll_mechanism])
115     fi
116     else
117     eval "is_desired_iopoll_mechanism_available=\$is_${desired_iopoll_mechanism}_mechanism_available"
118     if test "$is_desired_iopoll_mechanism_available" = "yes" ; then
119     selected_iopoll_mechanism=$desired_iopoll_mechanism
120     AC_MSG_RESULT([$selected_iopoll_mechanism])
121     else
122     AC_MSG_RESULT([none])
123     AC_MSG_ERROR([desired iopoll mechanism, $desired_iopoll_mechanism, is not available])
124     fi
125     fi
126     dnl }}}
127     dnl {{{ postamble
128     eval "use_iopoll_mechanism=\$iopoll_mechanism_${selected_iopoll_mechanism}"
129     AC_DEFINE_UNQUOTED([USE_IOPOLL_MECHANISM],[$use_iopoll_mechanism],[use this iopoll mechanism])
130     dnl }}}
131     ])dnl }}}
132     dnl {{{ ax_arg_enable_halfops
133     AC_DEFUN([AX_ARG_ENABLE_HALFOPS],[
134 michael 1374 AC_ARG_ENABLE([halfops],[AS_HELP_STRING([--enable-halfops],[Enable halfops support.])],[halfops="$enableval"],[halfops="no"])
135 stu 908 if test "$halfops" = "yes" ; then
136     AC_DEFINE([HALFOPS],[1],[Define to 1 if you want halfops support.])
137     fi
138     ])dnl }}}
139     dnl {{{ ax_arg_enable_debugging
140     AC_DEFUN([AX_ARG_ENABLE_DEBUGGING],[
141 michael 1374 AC_ARG_ENABLE([debugging],[AS_HELP_STRING([--enable-debugging],[Enable debugging.])],[debugging="$enableval"],[debugging="no"])
142 stu 908 if test "$debugging" = "yes" ; then
143 michael 1017 CFLAGS="-Wall -g -O0"
144 stu 908 fi
145     ])dnl }}}
146     dnl {{{ ax_arg_enable_warnings
147     AC_DEFUN([AX_ARG_ENABLE_WARNINGS],[
148 michael 1374 AC_ARG_ENABLE([warnings],[AS_HELP_STRING([--enable-warnings],[Enable compiler warnings.])],[warnings="$enableval"],[warnings="no"])
149 stu 908 if test "$warnings" = "yes" ; then
150 michael 2492 AX_APPEND_COMPILE_FLAGS([-Wall])
151     AX_APPEND_COMPILE_FLAGS([-Wextra])
152     AX_APPEND_COMPILE_FLAGS([-Wno-unused])
153     AX_APPEND_COMPILE_FLAGS([-Wcast-qual])
154     AX_APPEND_COMPILE_FLAGS([-Wcast-align])
155     AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
156     AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations])
157     AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
158     AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
159     AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
160     AX_APPEND_COMPILE_FLAGS([-Wshadow])
161     AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
162     AX_APPEND_COMPILE_FLAGS([-Wundef])
163 stu 908 fi
164     ])dnl }}}
165     ]) dnl }}}

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