#!/bin/sh

SRC_BCC='bcc.c'
SRC_CC1='bcc-cc1.c assign.c codefrag.c debug.c declare.c express.c exptree.c
         floatop.c function.c gencode.c genloads.c glogcode.c hardop.c input.c
         label.c loadexp.c longop.c output.c preproc.c preserve.c scan.c
         softop.c state.c table.c type.c'
SRC_AS=' as.c assemble.c error.c express.c genbin.c genlist.c genobj.c gensym.c
         keywords.c macro.c mops.c pops.c readsrc.c scan.c table.c typeconv.c'
SRC_LD=' ld.c dumps.c io.c linksyms.c readobj.c table.c typeconv.c
         writebin.c writex86.c'

HDR_BCC=''
HDR_CC1='align.h byteord.h condcode.h const.h gencode.h input.h label.h os.h
         output.h parse.h proto.h reg.h sc.h scan.h sizes.h table.h type.h
         types.h'
HDR_AS=' address.h byteord.h const.h file.h flag.h globvar.h macro.h opcode.h
         proto.h scan.h source.h syshead.h type.h'
HDR_LD=' align.h ar.h bindef.h byteord.h config.h const.h globvar.h obj.h
         syshead.h type.h x86_aout.h'

main() {
   echo    '@echo off'
   echo -n 'if not exist later.exe '
   echo    'bcc -O later.c'
   echo

   CFLAGS='-O -D__STDC__=1 -DMSDOS'
   LDFLAGS=''
   ARCH=
   build bcc bcc     bin "$HDR_BCC" $SRC_BCC

   CFLAGS='-O -D__STDC__=1 -DMSDOS -DPOSIX_HEADERS_MISSING'
   LDFLAGS=
   ARCH=-ml
   build bcc bcc-cc1 lib "$HDR_CC1" $SRC_CC1
   build as  as86    bin "$HDR_AS"  $SRC_AS
   build ld  ld86    bin "$HDR_LD"  $SRC_LD
   echo ":exit_now"
}

build() {
   DIR="$1" ; shift
   PRG="$1" ; shift
   BIN="$1" ; shift
   HDR="$1" ; shift
   OBJ=
   BOBJ=
   COBJ=
   LOBJ=
   SRC="$*"

   for i in $SRC
   do
      j=`basename $i .c`
      check_time $DIR/$j.obj $i $HDR
      echo -n "if errorlevel 1 "

      echo "bcc $ARCH $CFLAGS -c -I$DIR -o$DIR\\$j.obj $DIR\\$i"
      if [ "$BOBJ" = "" ]
      then BOBJ="$DIR\\$j.obj"
      else LOBJ="$LOBJ +$DIR\\$j.obj"
      fi
      COBJ="$COBJ $DIR\\$j.obj"
      OBJ="$OBJ $j.obj"

      echo "if errorlevel 1 goto exit_now"
   done

   if [ `echo $COBJ | wc -c` -lt 50 ]
   then
        check_time $BIN/$PRG.exe $OBJ
	echo -n "if errorlevel 1 "
        echo "bcc $ARCH -e$BIN\\$PRG.exe$COBJ $LDFLAGS"
        echo "if errorlevel 1 goto exit_now"
   else
        check_time $BIN/$PRG.exe $OBJ
	echo "if not errorlevel 1 goto done_$PRG"
        echo "if exist doslib.lib del doslib.lib"
        echo $LOBJ | fmt -62 | \
	sed 's/\(.*\)/tlib doslib.lib \1/'
        echo "bcc $ARCH -e$BIN\\$PRG.exe $BOBJ doslib.lib $LDFLAGS"
        echo "if errorlevel 1 goto exit_now"
        echo "if exist doslib.lib del doslib.lib"
        echo "if exist doslib.bak del doslib.bak"
	echo ":done_$PRG"
   fi
   echo
}

check_time() {
   TARG="$1" ; shift

   for i 
   do echo "$DIR/$i"
   done | fmt -70 | \
   sed -e "s;\(.*\);later $TARG \1@if errorlevel 3 goto exit_now;" \
       -e '2,$s/^/if not errorlevel 1 /' | \
   tr '@' '\012'
}

main "$@" | sed 's/$/
/' > compile.bat