contrib/ntp/m4/os_cflags.m4

   1 dnl ######################################################################
   2 dnl Specify additional compile options based on the OS and the compiler
   3 dnl From Erez Zadok <ezk@cs.sunysb.edu>, http://www.am-utils.org
   4 AC_DEFUN([AMU_OS_CFLAGS],
   5 [
   6 AC_CACHE_CHECK(additional compiler flags,
   7 ac_cv_os_cflags,
   8 [
   9 case "${host_os}" in
  10         irix6* )
  11                 case "${CC}" in
  12                         cc )
  13                                 # do not use 64-bit compiler
  14                                 ac_cv_os_cflags="-n32 -mips3 -Wl,-woff,84"
  15                                 ;;
  16                 esac
  17                 ;;
  18 # HMS: am-utils needed this but we don't (apparently)
  19 #       osf[[1-3]]* )
  20 #               # get the right version of struct sockaddr
  21 #               case "${CC}" in
  22 #                       cc )
  23 #                               ac_cv_os_cflags="-std -D_SOCKADDR_LEN -D_NO_PROTO"
  24 #                               ;;
  25 #                       * )
  26 #                               ac_cv_os_cflags="-D_SOCKADDR_LEN -D_NO_PROTO"
  27 #                               ;;
  28 #               esac
  29 #               ;;
  30 #       osf* )
  31 #               # get the right version of struct sockaddr
  32 #               case "${CC}" in
  33 #                       cc )
  34 #                               ac_cv_os_cflags="-std -D_SOCKADDR_LEN"
  35 #                               ;;
  36 #                       * )
  37 #                               ac_cv_os_cflags="-D_SOCKADDR_LEN"
  38 #                               ;;
  39 #               esac
  40 #               ;;
  41         aix[[1-3]]* )
  42                 ac_cv_os_cflags="" ;;
  43         aix4.[[0-2]]* )
  44                 # turn on additional headers
  45                 ac_cv_os_cflags="-D_XOPEN_EXTENDED_SOURCE"
  46                 ;;
  47         aix* )
  48                 # avoid circular dependencies in yp headers
  49                 ac_cv_os_cflags="-DHAVE_BAD_HEADERS -D_XOPEN_EXTENDED_SOURCE"
  50                 ;;
  51         OFF-sunos4* )
  52                 # make sure passing whole structures is handled in gcc
  53                 case "${CC}" in
  54                         gcc )
  55                                 ac_cv_os_cflags="-fpcc-struct-return"
  56                                 ;;
  57                 esac
  58                 ;;
  59         sunos[[34]]* | solaris1* | solaris2.[[0-5]]* | sunos5.[[0-5]]* )
  60                 ac_cv_os_cflags="" ;;
  61         solaris* | sunos* )
  62                 # turn on 64-bit file offset interface
  63                 case "${CC}" in
  64                         * )
  65                                 ac_cv_os_cflags="-D_LARGEFILE64_SOURCE"
  66                                 ;;
  67                 esac
  68                 ;;
  69         hpux* )
  70                 # use Ansi compiler on HPUX
  71                 case "${CC}" in
  72                         cc )
  73                                 ac_cv_os_cflags="-Ae"
  74                                 ;;
  75                 esac
  76                 ;;
  77         darwin* | rhapsody* )
  78                 ac_cv_os_cflags="-D_P1003_1B_VISIBLE"
  79                 ;;
  80         * )
  81                 ac_cv_os_cflags=""
  82                 ;;
  83 esac
  84 ])
  85 CFLAGS="$CFLAGS $ac_cv_os_cflags"
  86 ])
  87 dnl ======================================================================