src/osdef.sh

   1 #! /bin/sh
   2
   3 if test -z "$CPP"; then
   4   CPP="cc -E"
   5 fi
   6 if test -z "$srcdir"; then
   7   srcdir=.
   8 fi
   9
  10 rm -f core*
  11
  12 sed < $srcdir/osdef.h.in -n -e '/^extern/s@.*[)*        ][)*    ]*\([^ *]*\) __P.*@/[)*,        ]\1[    (]/i\\\
  13 \\/\\[^a-zA-Z_\\]\1 __P\\/d@p' > osdef1.sed
  14 cat << EOF > osdef0.c
  15 #include "config.h"
  16 #include <sys/types.h>
  17 #include <stdio.h>
  18 #include <signal.h>
  19 #include <sys/stat.h>
  20 #include <pwd.h>
  21 #ifdef SHADOWPW
  22 #include <shadow.h>
  23 #endif
  24 #ifndef sun
  25 #include <sys/ioctl.h>
  26 #endif
  27 #ifdef linux
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #endif
  31 #ifndef NAMEDPIPE
  32 #include <sys/socket.h>
  33 #endif
  34 #ifndef NOSYSLOG
  35 #include <syslog.h>
  36 #endif
  37 #include "os.h"
  38 #if defined(UTMPOK) && defined (GETTTYENT) && !defined(GETUTENT)
  39 #include <ttyent.h>
  40 #endif
  41 #ifdef SVR4
  42 # include <sys/resource.h>
  43 #endif
  44 EOF
  45 cat << EOF > osdef2.sed
  46 1i\\
  47 /*
  48 1i\\
  49  * This file is automagically created from osdef.sh -- DO NOT EDIT
  50 1i\\
  51  */
  52 EOF
  53 $CPP -I. -I$srcdir osdef0.c | sed -n -f osdef1.sed >> osdef2.sed
  54 sed -f osdef2.sed < $srcdir/osdef.h.in > osdef.h
  55 rm osdef0.c osdef1.sed osdef2.sed
  56
  57 if test -f core*; then
  58   file core*
  59   echo "  Sorry, your sed is broken. Call the system administrator."
  60   echo "  Meanwhile, you may try to compile screen with an empty osdef.h file."
  61   echo "  But if your compiler needs to have all functions declared, you should"
  62   echo "  retry 'make' now and only remove offending lines from osdef.h later."
  63   exit 1
  64 fi
  65 if eval test "`diff osdef.h $srcdir/osdef.h.in | wc -l`" -eq 4; then
  66   echo "  Hmm, sed is very pessimistic about your system header files."
  67   echo "  But it did not dump core -- strange! Let's continue carefully..."
  68   echo "  If this fails, you may want to remove offending lines from osdef.h"
  69   echo "  or try with an empty osdef.h file, if your compiler can do without"
  70   echo "  function declarations."
  71 fi