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Upgrade NTP to 4.2.8p4.
[FreeBSD/releng/10.2.git] / contrib / ntp / sntp / m4 / os_cflags.m4
1 dnl ######################################################################
2 dnl Specify additional compile options based on the OS and the compiler
3 AC_DEFUN([NTP_OS_CFLAGS], [
4     AC_MSG_CHECKING([additional compiler flags])
5     # allow ntp_os_cflags to be preset to skip this stuff
6     case "${ntp_os_cflags+set}" in
7      set)
8         ;;
9      *)
10         ntp_os_cflags=
11         case "$host_os" in
12          aix[[1-3]]*)
13             ;;
14          aix4.[[0-2]]*)
15             # turn on additional headers
16             ntp_os_cflags="-D_XOPEN_EXTENDED_SOURCE"
17             ;;
18          aix5.3*)
19             # avoid circular dependencies in yp headers, and more
20             ntp_os_cflags="-DHAVE_BAD_HEADERS -D_XOPEN_EXTENDED_SOURCE"
21             ntp_os_cflags="${ntp_os_cflags} -D_USE_IRS -D_MSGQSUPPORT"
22             ;;
23          aix*)
24             # XXX Only verified thru AIX6.
25             # aix7 seems to need a different XOPEN_SOURCE_EXTENDED thing.
26             # avoid circular dependencies in yp headers
27             # _XOPEN_SOURCE=500 = X/Open 5: POSIX 1995
28             # _XOPEN_SOURCE=600 = X/Open 6: POSIX 2004
29             # _XOPEN_SOURCE=700 = X/Open 7: POSIX 2008
30             ntp_os_cflags="-DHAVE_BAD_HEADERS -D_XOPEN_SOURCE=600"
31             ntp_os_cflags="${ntp_os_cflags} -D_USE_IRS"
32             ;;
33          amigaos)
34             ntp_os_cflags="-DSYS_AMIGA"
35             ;;
36          darwin*|macosx*|rhapsody*)
37             ntp_os_cflags="-D_P1003_1B_VISIBLE"
38             ;;
39          hpux10.*)              # at least for hppa2.0-hp-hpux10.20
40             case "$GCC" in
41              yes)
42                 ;;
43              *)
44                 # use Ansi compiler on HPUX, and some -Wp magic
45                 ntp_os_cflags="-Ae -Wp,-H18816"
46                 ;;
47             esac
48             ntp_os_cflags="${ntp_os_cflags} -D_HPUX_SOURCE -D__STDC_VERSION__=199901L"
49             ;;
50          hpux*)
51             case "$GCC" in
52              yes)
53                 ;;
54              *)
55                 # use Ansi compiler on HPUX
56                 ntp_os_cflags="-Ae"
57             esac
58             ntp_os_cflags="${ntp_os_cflags} -D_HPUX_SOURCE -D__STDC_VERSION__=199901L"
59             ;;
60          irix6*)
61             case "$CC" in
62              cc)
63                 # do not use 64-bit compiler
64                 ntp_os_cflags="-n32 -mips3 -Wl,-woff,84"
65             esac
66             ;;
67          nextstep3)
68             ntp_os_cflags="-posix"
69             ;;
70          solaris1*|solaris2.[[0-5]]|solaris2.5.*)
71             ;;
72          sunos[[34]]*|sunos5.[[0-5]]|sunos5.5.*)
73             ;;
74          solaris2*|sunos5*)
75             # turn on 64-bit file offset interface
76             ntp_os_cflags="-D_LARGEFILE64_SOURCE"
77             ;;
78          vxworks*)
79             case "$build" in
80              $host)
81                 ;;
82              *)
83                 # Quick and dirty sanity check
84                 case "$VX_KERNEL" in
85                  '')
86                     AC_MSG_ERROR([See html/build/hints/vxworks.html])
87                 esac
88                 ntp_os_cflags="-DSYS_VXWORKS"
89             esac
90             ;;
91         esac
92     esac
93     case "$ntp_os_cflags" in
94      '')
95         ntp_os_cflags_msg="none needed"
96         ;;
97      *)
98         ntp_os_cflags_msg="$ntp_os_cflags"
99     esac
100     CFLAGS_NTP="$CFLAGS_NTP $ntp_os_cflags"
101     AC_MSG_RESULT([$ntp_os_cflags_msg])
102     AS_UNSET([ntp_os_cflags_msg])
103     ###
104     AC_MSG_CHECKING([additional linker flags])
105     # HMS: The following might still need tweaking
106     # allow ntp_os_ldflags to be preset to skip this stuff
107     case "${ntp_os_ldflags+set}" in
108      set)
109         ;;
110      *)
111         ntp_os_ldflags=
112         case "$host_os" in
113          hpux*)
114             case "$GCC" in
115              yes)
116                 ntp_os_ldflags="-Wl,+allowdups"
117                 ;;
118             esac
119             ;;
120         esac
121         ;;
122     esac
123     case "$ntp_os_ldflags" in
124      '')
125         ntp_os_ldflags_msg="none needed"
126         ;;
127      *)
128         ntp_os_ldflags_msg="$ntp_os_ldflags"
129     esac
130     LDFLAGS_NTP="$LDFLAGS_NTP $ntp_os_ldflags"
131     AC_MSG_RESULT([$ntp_os_ldflags_msg])
132     AS_UNSET([ntp_os_ldflags_msg])
133 ])
134 dnl ======================================================================