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_CACHE_CHECK([for $i],ac_cv_header_$cv,
  16 [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
  17 #ifdef HAVE_STANDARDS_H
  18 #include <standards.h>
  19 #endif
  20 #include <$i>
  21 ]])],
  22 [eval "ac_cv_header_$cv=yes"],
  23 [eval "ac_cv_header_$cv=no"])])
  24 ac_res=`eval echo \\$ac_cv_header_$cv`
  25 if test "$ac_res" = yes; then
  26         ac_tr_hdr=HAVE_`echo $i | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
  27         AC_DEFINE_UNQUOTED($ac_tr_hdr, 1)
  28 fi
  29 done
  30 if false;then
  31         AC_CHECK_HEADERS(netinet/ip.h netinet/tcp.h)
  32 fi
  33 ])