contrib/ntp/sntp/m4/ntp_harden.m4

   1 dnl ######################################################################
   2 dnl @synopsis NTP_HARDEN([SCRIPTSDIRPATH])
   3 dnl Build (compile/link) hardening information:
   4 dnl - NTP_HARD_CFLAGS
   5 dnl - NTP_HARD_CPPFLAGS
   6 dnl - NTP_HARD_LDFLAGS
   7
   8 AC_DEFUN([NTP_HARDEN], [
   9
  10 AC_MSG_CHECKING([for compile/link hardening flags])
  11
  12 AC_ARG_WITH(
  13     [hardenfile],
  14     [AS_HELP_STRING(
  15         [--with-hardenfile=XXX],
  16         [os-specific or "/dev/null"]
  17     )],
  18     [],
  19     [with_hardenfile=no]
  20 )
  21
  22 (                                                                       \
  23     SENTINEL_DIR="$PWD" &&                                              \
  24     cd $srcdir/$1 &&                                                    \
  25     case "$with_hardenfile" in                                          \
  26      yes|no|'')                                                         \
  27         scripts/genHardFlags -d "$SENTINEL_DIR"                         \
  28         ;;                                                              \
  29      *)                                                                 \
  30         scripts/genHardFlags -d "$SENTINEL_DIR" -f "$with_hardenfile"   \
  31         ;;                                                              \
  32     esac                                                                \
  33 ) > genHardFlags.i 2> genHardFlags.err
  34 . ./genHardFlags.i
  35
  36 case "$GENHARDFLAG" in
  37  OK)
  38     AC_MSG_RESULT([in file $GENHARDFLAGFILE])
  39     rm genHardFlags.err genHardFlags.i
  40     ;;
  41  *)
  42     AC_MSG_RESULT([failed.])
  43     AC_MSG_ERROR([Problem with genHardFlags!])
  44     ;;
  45 esac
  46
  47 AC_SUBST([NTP_HARD_CFLAGS])
  48 AC_SUBST([NTP_HARD_CPPFLAGS])
  49 AC_SUBST([NTP_HARD_LDFLAGS])
  50
  51 ])dnl
  52 dnl ======================================================================