contrib/ncurses/include/MKncurses_def.sh

   1 #! /bin/sh
   2 # $Id: MKncurses_def.sh,v 1.3 2003/10/25 16:19:46 tom Exp $
   3 ##############################################################################
   4 # Copyright (c) 2000,2003 Free Software Foundation, Inc.                     #
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  30 #
  31 # MKncurses_def.sh -- generate fallback definitions for ncurses_cfg.h
  32 #
  33 # Author: Thomas E. Dickey 2000
  34 #
  35 # Given the choice between constructs such as
  36 #
  37 #       #if defined(foo) && foo
  38 #       #if foo
  39 #
  40 # we chose the latter.  It is guaranteed by the language standard, and there
  41 # appear to be no broken compilers that do not honor that detail.  But some
  42 # people want to use gcc's -Wundef option (corresponding to one of the less
  43 # useful features in Watcom's compiler) to check for misspellings.  So we
  44 # generate a set of fallback definitions to quiet the warnings without making
  45 # the code ugly.
  46 #
  47 DEFS="${1-ncurses_defs}"
  48 cat <<EOF
  49 /*
  50  * This file is generated by $0
  51  */
  52
  53 #ifndef NC_DEFINE_H
  54 #define NC_DEFINE_H 1
  55
  56 EOF
  57
  58 ${AWK-awk} <$DEFS '
  59 !/^[@#]/ {
  60         if ( NF == 1 )
  61         {
  62                 print "#ifndef", $1
  63                 print "#define", $1, "0"
  64                 print "#endif"
  65                 print ""
  66         } else if ( NF != 0 ) {
  67                 print "#ifndef", $1
  68                 printf "#define"
  69                 for (n = 1; n <= NF; n++) {
  70                         printf " %s", $n
  71                 }
  72                 print ""
  73                 print "#endif"
  74                 print ""
  75         }
  76 }
  77 END     {
  78 print "#endif /* NC_DEFINE_H */"
  79         }
  80 '