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bird2 ver 2.0.7

    1: dnl ** Additional Autoconf tests for BIRD configure script
    2: dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
    3: 
    4: AC_DEFUN([BIRD_CHECK_THREAD_LOCAL],
    5: [
    6:   AC_CACHE_CHECK(
    7:     [whether _Thread_local is known],
    8:     [bird_cv_thread_local],
    9:     AC_COMPILE_IFELSE([
   10:       AC_LANG_PROGRAM(
   11:         [
   12: 	  _Thread_local static int x = 42;
   13: 	],
   14: 	[]
   15:       )
   16:     ],
   17:     [bird_cv_thread_local=yes],
   18:     [bird_cv_thread_local=no]
   19:     )
   20:   )
   21: ])
   22: 
   23: AC_DEFUN([BIRD_CHECK_PTHREADS],
   24: [
   25:   bird_tmp_cflags="$CFLAGS"
   26:   CFLAGS="$CFLAGS -pthread"
   27: 
   28:   AC_CACHE_CHECK(
   29:     [whether POSIX threads are available],
   30:     [bird_cv_lib_pthreads],
   31:     [
   32:       AC_LINK_IFELSE(
   33: 	[
   34: 	  AC_LANG_PROGRAM(
   35: 	    [ #include <pthread.h> ],
   36: 	    [
   37: 	      pthread_t pt;
   38: 	      pthread_create(&pt, NULL, NULL, NULL);
   39: 	      pthread_spinlock_t lock;
   40: 	      pthread_spin_lock(&lock);
   41: 	    ]
   42: 	  )
   43: 	],
   44: 	[bird_cv_lib_pthreads=yes],
   45: 	[bird_cv_lib_pthreads=no]
   46:       )
   47:     ]
   48:   )
   49: 
   50:   CFLAGS="$bird_tmp_cflags"
   51: ])
   52: 
   53: AC_DEFUN([BIRD_CHECK_MPLS_KERNEL],
   54: [
   55:   AC_CACHE_CHECK(
   56:     [for Linux MPLS headers],
   57:     [bird_cv_mpls_kernel],
   58:     [
   59:       AC_COMPILE_IFELSE(
   60: 	[
   61: 	  AC_LANG_PROGRAM(
   62: 	    [
   63: 	      #include <linux/lwtunnel.h>
   64: 	      #include <linux/netlink.h>
   65: 	      #include <linux/rtnetlink.h>
   66: 	      #include <sys/socket.h>
   67: 	      void t(int arg);
   68: 	    ],
   69: 	    [
   70: 	      t(AF_MPLS);
   71: 	      t(RTA_VIA);
   72: 	      t(RTA_NEWDST);
   73: 	      t(RTA_ENCAP_TYPE);
   74: 	      t(RTA_ENCAP);
   75: 	      struct rtvia rtvia;
   76: 	      t(LWTUNNEL_ENCAP_MPLS);
   77: 	    ]
   78: 	  )
   79: 	],
   80: 	[bird_cv_mpls_kernel=yes],
   81: 	[bird_cv_mpls_kernel=no]
   82:       )
   83:     ]
   84:   )
   85: ])
   86: 
   87: AC_DEFUN([BIRD_CHECK_ANDROID_GLOB],
   88: [
   89:   AC_CACHE_CHECK(
   90:     [for glob.h],
   91:     [bird_cv_lib_glob],
   92:     AC_LINK_IFELSE([
   93:       AC_LANG_PROGRAM(
   94:         [
   95: 	  #include <glob.h>
   96: 	  #include <stdlib.h>
   97: 	],
   98:         [ glob(NULL, 0, NULL, NULL); ]
   99:       )
  100:     ],
  101:     [bird_cv_lib_glob=yes],
  102:       [
  103:         bird_tmp_libs="$LIBS"
  104:         LIBS="$LIBS -landroid-glob"
  105:         AC_LINK_IFELSE([
  106:           AC_LANG_PROGRAM(
  107:             [
  108: 	      #include <glob.h>
  109: 	      #include <stdlib.h>
  110: 	    ],
  111:             [ glob(NULL, 0, NULL, NULL); ]
  112:           )
  113:         ],
  114:         [bird_cv_lib_glob=-landroid-glob],
  115:         [bird_cv_lib_glob=no]
  116:         )
  117:         LIBS="$bird_tmp_libs"
  118:       ]
  119:     )
  120:   )
  121: ])
  122: 
  123: AC_DEFUN([BIRD_CHECK_ANDROID_LOG],
  124: [
  125:   AC_CACHE_CHECK(
  126:     [for syslog lib flags],
  127:     [bird_cv_lib_log],
  128:     AC_LINK_IFELSE([
  129:       AC_LANG_PROGRAM(
  130:         [ #include <sys/syslog.h> ],
  131:         [ syslog(0, ""); ]
  132:       )
  133:     ],
  134:     [bird_cv_lib_log=yes],
  135:       [
  136:         bird_tmp_libs="$LIBS"
  137:         LIBS="$LIBS -llog"
  138:         AC_LINK_IFELSE([
  139:           AC_LANG_PROGRAM(
  140:             [ #include <sys/syslog.h> ],
  141:             [ syslog(0, ""); ]
  142:           )
  143:         ],
  144:         [bird_cv_lib_log=-llog],
  145:         [bird_cv_lib_log=no]
  146:         )
  147:         LIBS="$bird_tmp_libs"
  148:       ]
  149:     )
  150:   )
  151: ])
  152: 
  153: AC_DEFUN([BIRD_CHECK_LTO],
  154: [
  155:   bird_tmp_cflags="$CFLAGS"
  156:   bird_tmp_ldflags="$LDFLAGS"
  157:   CFLAGS="-flto"
  158:   LDFLAGS="-flto=4"
  159: 
  160:   AC_CACHE_CHECK(
  161:     [whether link time optimizer is available],
  162:     [bird_cv_c_lto],
  163:     [
  164:       AC_LINK_IFELSE(
  165: 	[AC_LANG_PROGRAM()],
  166: 	[bird_cv_c_lto=yes],
  167: 	[bird_cv_c_lto=no]
  168:       )
  169:     ]
  170:   )
  171: 
  172:   CFLAGS="$bird_tmp_cflags"
  173:   LDFLAGS="$bird_tmp_ldflags"
  174: ])
  175: 
  176: 
  177: AC_DEFUN([BIRD_CHECK_GCC_OPTION],
  178: [
  179:   bird_tmp_cflags="$CFLAGS"
  180:   CFLAGS="$3 $2"
  181: 
  182:   AC_CACHE_CHECK(
  183:     [whether CC supports $2],
  184:     [$1],
  185:     [
  186:       AC_COMPILE_IFELSE(
  187: 	[AC_LANG_PROGRAM()],
  188: 	[$1=yes],
  189: 	[$1=no]
  190:       )
  191:     ]
  192:   )
  193: 
  194:   CFLAGS="$bird_tmp_cflags"
  195: ])
  196: 
  197: AC_DEFUN([BIRD_ADD_GCC_OPTION],
  198: [
  199:   if test "$$1" = yes ; then
  200:     CFLAGS="$CFLAGS $2"
  201:   fi
  202: ])
  203: 
  204: # BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
  205: # copied from autoconf internal _AC_PATH_PROG_FLAVOR_GNU
  206: AC_DEFUN([BIRD_CHECK_PROG_FLAVOR_GNU],
  207: [
  208:   # Check for GNU $1
  209:   case `"$1" --version 2>&1` in
  210:     *GNU*)
  211:       $2
  212:       ;;
  213:   m4_ifval([$3],
  214:     [*)
  215:       $3
  216:       ;;
  217:     ]
  218:   )
  219:   esac
  220: ])
  221: 
  222: AC_DEFUN([BIRD_CHECK_BISON_VERSION],
  223: [
  224:   $1=`bison --version | ( read line; echo ${line##* } )`
  225:   case "$$1" in
  226:     1.* | 2.0* | 2.1* | 2.2* | 2.3*)
  227:       AC_MSG_ERROR([Provided Bison version $$1 is too old, need at least 2.4])
  228:       ;;
  229:     2.*)
  230:       bird_bison_synclines=no
  231:       bird_bison_enhanced_error=no
  232:       ;;
  233:     3.* | 4.* | 5.* | 6.* | 7.* | 8.* | 9.*)
  234:       bird_bison_synclines=yes
  235:       bird_bison_enhanced_error=yes
  236:       ;;
  237:     *)
  238:       AC_MSG_ERROR([Couldn't parse Bison version $$1. Call the developers for help.])
  239:       ;;
  240:   esac
  241: ])