aclocal.m4

   1 dnl ** Additional Autoconf tests for BIRD configure script
   2 dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
   3
   4 AC_DEFUN([BIRD_CHECK_PTHREADS],
   5 [
   6   bird_tmp_cflags="$CFLAGS"
   7   CFLAGS="$CFLAGS -pthread"
   8
   9   AC_CACHE_CHECK(
  10     [whether POSIX threads are available],
  11     [bird_cv_lib_pthreads],
  12     [
  13       AC_LINK_IFELSE(
  14         [
  15           AC_LANG_PROGRAM(
  16             [ #include <pthread.h> ],
  17             [
  18               pthread_t pt;
  19               pthread_create(&pt, NULL, NULL, NULL);
  20               pthread_spinlock_t lock;
  21               pthread_spin_lock(&lock);
  22             ]
  23           )
  24         ],
  25         [bird_cv_lib_pthreads=yes],
  26         [bird_cv_lib_pthreads=no]
  27       )
  28     ]
  29   )
  30
  31   CFLAGS="$bird_tmp_cflags"
  32 ])
  33
  34 AC_DEFUN([BIRD_CHECK_MPLS_KERNEL],
  35 [
  36   AC_CACHE_CHECK(
  37     [for Linux MPLS headers],
  38     [bird_cv_mpls_kernel],
  39     [
  40       AC_COMPILE_IFELSE(
  41         [
  42           AC_LANG_PROGRAM(
  43             [
  44               #include <linux/lwtunnel.h>
  45               #include <linux/netlink.h>
  46               #include <linux/rtnetlink.h>
  47               #include <sys/socket.h>
  48               void t(int arg);
  49             ],
  50             [
  51               t(AF_MPLS);
  52               t(RTA_VIA);
  53               t(RTA_NEWDST);
  54               t(RTA_ENCAP_TYPE);
  55               t(RTA_ENCAP);
  56               struct rtvia rtvia;
  57               t(LWTUNNEL_ENCAP_MPLS);
  58             ]
  59           )
  60         ],
  61         [bird_cv_mpls_kernel=yes],
  62         [bird_cv_mpls_kernel=no]
  63       )
  64     ]
  65   )
  66 ])
  67
  68 AC_DEFUN([BIRD_CHECK_ANDROID_GLOB],
  69 [
  70   AC_CACHE_CHECK(
  71     [for glob.h],
  72     [bird_cv_lib_glob],
  73     AC_LINK_IFELSE([
  74       AC_LANG_PROGRAM(
  75         [
  76           #include <glob.h>
  77           #include <stdlib.h>
  78         ],
  79         [ glob(NULL, 0, NULL, NULL); ]
  80       )
  81     ],
  82     [bird_cv_lib_glob=yes],
  83       [
  84         bird_tmp_libs="$LIBS"
  85         LIBS="$LIBS -landroid-glob"
  86         AC_LINK_IFELSE([
  87           AC_LANG_PROGRAM(
  88             [
  89               #include <glob.h>
  90               #include <stdlib.h>
  91             ],
  92             [ glob(NULL, 0, NULL, NULL); ]
  93           )
  94         ],
  95         [bird_cv_lib_glob=-landroid-glob],
  96         [bird_cv_lib_glob=no]
  97         )
  98         LIBS="$bird_tmp_libs"
  99       ]
 100     )
 101   )
 102 ])
 103
 104 AC_DEFUN([BIRD_CHECK_ANDROID_LOG],
 105 [
 106   AC_CACHE_CHECK(
 107     [for syslog lib flags],
 108     [bird_cv_lib_log],
 109     AC_LINK_IFELSE([
 110       AC_LANG_PROGRAM(
 111         [ #include <sys/syslog.h> ],
 112         [ syslog(0, ""); ]
 113       )
 114     ],
 115     [bird_cv_lib_log=yes],
 116       [
 117         bird_tmp_libs="$LIBS"
 118         LIBS="$LIBS -llog"
 119         AC_LINK_IFELSE([
 120           AC_LANG_PROGRAM(
 121             [ #include <sys/syslog.h> ],
 122             [ syslog(0, ""); ]
 123           )
 124         ],
 125         [bird_cv_lib_log=-llog],
 126         [bird_cv_lib_log=no]
 127         )
 128         LIBS="$bird_tmp_libs"
 129       ]
 130     )
 131   )
 132 ])
 133
 134 AC_DEFUN([BIRD_CHECK_LTO],
 135 [
 136   bird_tmp_cflags="$CFLAGS"
 137   bird_tmp_ldflags="$CFLAGS"
 138   CFLAGS="-flto"
 139   LDFLAGS="-flto"
 140
 141   AC_CACHE_CHECK(
 142     [whether link time optimizer is available],
 143     [bird_cv_c_lto],
 144     [
 145       AC_LINK_IFELSE(
 146         [AC_LANG_PROGRAM()],
 147         [bird_cv_c_lto=yes],
 148         [bird_cv_c_lto=no]
 149       )
 150     ]
 151   )
 152
 153   CFLAGS="$bird_tmp_cflags"
 154   LDFLAGS="$bird_tmp_ldflags"
 155 ])
 156
 157
 158 AC_DEFUN([BIRD_CHECK_GCC_OPTION],
 159 [
 160   bird_tmp_cflags="$CFLAGS"
 161   CFLAGS="$3 $2"
 162
 163   AC_CACHE_CHECK(
 164     [whether CC supports $2],
 165     [$1],
 166     [
 167       AC_COMPILE_IFELSE(
 168         [AC_LANG_PROGRAM()],
 169         [$1=yes],
 170         [$1=no]
 171       )
 172     ]
 173   )
 174
 175   CFLAGS="$bird_tmp_cflags"
 176 ])
 177
 178 AC_DEFUN([BIRD_ADD_GCC_OPTION],
 179 [
 180   if test "$$1" = yes ; then
 181     CFLAGS="$CFLAGS $2"
 182   fi
 183 ])
 184
 185 # BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
 186 # copied from autoconf internal _AC_PATH_PROG_FLAVOR_GNU
 187 AC_DEFUN([BIRD_CHECK_PROG_FLAVOR_GNU],
 188 [
 189   # Check for GNU $1
 190   case `"$1" --version 2>&1` in
 191     *GNU*)
 192       $2
 193       ;;
 194   m4_ifval([$3],
 195     [*)
 196       $3
 197       ;;
 198     ]
 199   )
 200   esac
 201 ])
 202
 203 AC_DEFUN([BIRD_CHECK_BISON_VERSION],
 204 [
 205   $1=`bison --version | ( read line; echo ${line##* } )`
 206   case "$$1" in
 207     1.* | 2.0* | 2.1* | 2.2* | 2.3*)
 208       AC_MSG_ERROR([Provided Bison version $$1 is too old, need at least 2.4])
 209       ;;
 210     2.*)
 211       bird_bison_synclines=no
 212       bird_bison_enhanced_error=no
 213       ;;
 214     3.* | 4.* | 5.* | 6.* | 7.* | 8.* | 9.*)
 215       bird_bison_synclines=yes
 216       bird_bison_enhanced_error=yes
 217       ;;
 218     *)
 219       AC_MSG_ERROR([Couldn't parse Bison version $$1. Call the developers for help.])
 220       ;;
 221   esac
 222 ])