configure.ac revision 182007 
1# Process this file with autoconf to produce a configure script.
2AC_INIT(main.c)
3AM_INIT_AUTOMAKE([msntp],[1.6])
4AC_CONFIG_SRCDIR([header.h])
5AC_CANONICAL_HOST
6AM_CONFIG_HEADER(config.h)
7
8# Checks for programs.
9AC_PROG_CC
10
11# So far, the only shared library we might use is libopts.
12# It's a small library - we might as well use a static version of it.
13AC_DISABLE_SHARED
14
15AC_PROG_LIBTOOL
16
17# NTP has (so far) been relying on leading-edge autogen.
18# Therefore, by default:
19# - use the version we ship with
20# - do not install it
21# - build a static copy (AC_DISABLE_SHARED - done earlier)
22case "${enable_local_libopts+set}" in
23 set) ;;
24 *) enable_local_libopts=yes ;;
25esac
26case "${enable_libopts_install+set}" in
27 set) ;;
28 *) enable_libopts_install=no ;;
29esac
30LIBOPTS_CHECK
31
32AC_MSG_CHECKING([[if $CC can handle #warning]])
33AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#warning foo]])],[ac_cv_cpp_warning=yes],[ac_cv_cpp_warning=no])
34AC_MSG_RESULT([$ac_cv_cpp_warning])
35
36case "$ac_cv_cpp_warning" in
37 no)
38    AC_DEFINE([NO_OPTION_NAME_WARNINGS], [1], [Should we avoid #warning on option name collisions?])
39    AC_MSG_RESULT([[Enabling NO_OPTION_NAME_WARNINGS as #warning does not work]])
40    ;;
41esac
42
43# Checks for libraries.
44
45# Checks for header files.
46AC_HEADER_STDC
47AC_CHECK_HEADERS([arpa/inet.h fcntl.h float.h limits.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h syslog.h unistd.h])
48
49# Checks for typedefs, structures, and compiler characteristics.
50AC_C_CONST
51AC_TYPE_SIZE_T
52AC_HEADER_TIME
53AC_STRUCT_TM
54
55AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage],
56		ac_cv_have_ss_family_in_struct_ss, [
57	AC_TRY_COMPILE(
58		[
59#include <sys/types.h>
60#include <sys/socket.h>
61		],
62		[ struct sockaddr_storage s; s.ss_family = 1; ],
63		[ ac_cv_have_ss_family_in_struct_ss="yes" ],
64		[ ac_cv_have_ss_family_in_struct_ss="no" ],
65	)
66])
67case "$ac_cv_have_ss_family_in_struct_ss" in
68 yes)
69    AC_DEFINE(HAVE_SS_FAMILY_IN_SS, 1, [Does struct sockaddr_storage have ss_family?])
70    ;;
71esac
72
73AC_CACHE_CHECK([for __ss_family field in struct sockaddr_storage],
74		ac_cv_have___ss_family_in_struct_ss, [
75	AC_TRY_COMPILE(
76		[
77#include <sys/types.h>
78#include <sys/socket.h>
79		],
80		[ struct sockaddr_storage s; s.__ss_family = 1; ],
81		[ ac_cv_have___ss_family_in_struct_ss="yes" ],
82		[ ac_cv_have___ss_family_in_struct_ss="no" ]
83	)
84])
85case "$ac_cv_have___ss_family_in_struct_ss" in
86 yes)
87    AC_DEFINE(HAVE___SS_FAMILY_IN_SS, 1, [Does struct sockaddr_storage have __ss_family?])
88    ;;
89esac
90
91case "$ac_cv_have_ss_family_in_struct_ss$ac_cv_have___ss_family_in_struct_ss" in
92 noyes)
93    AC_DEFINE_UNQUOTED([ss_family], [__ss_family], [normalize ss_family access])
94    AC_DEFINE_UNQUOTED([ss_len], [__ss_len], [normalize ss_len access])
95    ;;
96esac
97
98# Checks for library functions.
99AC_FUNC_MEMCMP
100AC_FUNC_SETVBUF_REVERSED
101AC_TYPE_SIGNAL
102AC_CHECK_FUNCS([alarm])
103AC_CHECK_FUNC(gethostent, , AC_CHECK_LIB(nsl, gethostent, , , -lsocket))
104AC_CHECK_FUNCS([gettimeofday inet_ntoa memset])
105AC_CHECK_FUNCS(socket, , AC_CHECK_LIB(socket, socket))
106AC_CHECK_FUNCS(sqrt, , AC_CHECK_LIB(m, sqrt))
107AC_CHECK_FUNCS([strrchr])
108
109case "$host" in
110 *-*-hpux10.*)	# at least for hppa2.0-hp-hpux10.20
111    case "$GCC" in
112     yes)
113	;;
114     *) CFLAGS="$CFLAGS -Wp,-H18816"
115	;;
116    esac
117    ;;
118 *-*-linux*)
119    CFLAGS="$CFLAGS -DADJTIME_MISSING"
120    ;;
121 *-*-sunos*)
122    CFLAGS="$CFLAGS -DNONBLOCK_BROKEN"
123    ;;
124esac
125
126AC_MSG_CHECKING(for bin subdirectory)
127AC_ARG_WITH(binsubdir,
128	AC_HELP_STRING([--with-binsubdir], [bin ={bin,sbin}]),
129	use_binsubdir="$withval", use_binsubdir="bin")
130
131case "$use_binsubdir" in
132 bin)
133    ;;
134 sbin)
135    ;;
136 *)
137    AC_MSG_ERROR([<$use_binsubdir> is illegal - must be "bin" or "sbin"])
138    ;;
139esac
140AC_MSG_RESULT($use_binsubdir)
141BINSUBDIR=$use_binsubdir
142AC_SUBST(BINSUBDIR)
143
144AC_CONFIG_FILES([Makefile])
145AC_OUTPUT
146