cf/check-netinet-ip-and-tcp.m4

   1 dnl
   2 dnl $Id$
   3 dnl
   4
   5 dnl extra magic check for netinet/{ip.h,tcp.h} because on irix 6.5.3
   6 dnl you have to include standards.h before including these files
   7
   8 AC_DEFUN(CHECK_NETINET_IP_AND_TCP,
   9 [
  10 AC_CHECK_HEADERS(standards.h)
  11 for i in netinet/ip.h netinet/tcp.h; do
  12
  13 cv=`echo "$i" | sed 'y%./+-%__p_%'`
  14
  15 AC_MSG_CHECKING([for $i])
  16 AC_CACHE_VAL([ac_cv_header_$cv],
  17 [AC_TRY_CPP([\
  18 #ifdef HAVE_STANDARDS_H
  19 #include <standards.h>
  20 #endif
  21 #include <$i>
  22 ],
  23 eval "ac_cv_header_$cv=yes",
  24 eval "ac_cv_header_$cv=no")])
  25 AC_MSG_RESULT(`eval echo \\$ac_cv_header_$cv`)
  26 changequote(, )dnl
  27 if test `eval echo \\$ac_cv_header_$cv` = yes; then
  28   ac_tr_hdr=HAVE_`echo $i | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
  29 changequote([, ])dnl
  30   AC_DEFINE_UNQUOTED($ac_tr_hdr, 1)
  31 fi
  32 done
  33 dnl autoheader tricks *sigh*
  34 : << END
  35 @@@headers="$headers netinet/ip.h netinet/tcp.h"@@@
  36 END
  37
  38 ])