update

#!/usr/bin/perl

# ----------------
# libddg -- update
# ----------------
#
# Running this script updates dependency lists in the Makefile -- it
# assumes that include and source files are in ./include/ and ./src/,
# respectively.  (Note that any existing dependency information will
# be overwritten!)
#

`g++ -I./include -I./src -MM src/*.cpp > ___dep`;

@objs = ();

open( IN, "<", "___dep" );
open( OUT, ">", "___dep2" );
while( <IN> )
{
   if( /\\/ )
   {
      chomp;
      s/\\//g;
   }

   if( /^(.*)\.o:/ )
   {
      $objName = $1;
      push( @objs, $objName );
   }

   print OUT;
}
close( IN );
close( OUT );

open( MKIN, "<", "Makefile" );
open( MKOUT, ">", "___Makefile" );
$inHead = 1;
while( <MKIN> )
{
   if( $inHead )
   {
      print MKOUT $_;
   }

   if( /^## !!/ )
   {
      $inHead = 0;
   }
}

print MKOUT "\nOBJS =";
foreach( @objs )
{
   print MKOUT " obj/$_.o";
}
print MKOUT "\n\n";

print MKOUT "all: \$\(TARGET\)\n\n";

print MKOUT "\$\(TARGET\): \$\(OBJS\)\n";
print MKOUT "\t\$\(LD\) \$\(LFLAGS\) \$\(OBJS\) \$\(LIBS\) -o \$\(TARGET\)\n\n";

open( IN, "<", "___dep2" );
while( <IN> )
{
   /^(.*)\.o:/;
   $objName = $1;

   $_ =~ s/\s+/ /g;
   print MKOUT "obj/" . $_ . "\n";
   print MKOUT "\t\$\(CC\) \$\(CFLAGS\) -c src/$objName.cpp -o obj/$objName.o\n\n";
}
close( IN );

print MKOUT "\nclean:\n";
print MKOUT "\trm -f \$\(OBJS\)\n";
print MKOUT "\trm -f \$\(TARGET\)\n";
print MKOUT "\trm -f \$\(TARGET\).exe\n\n";

`rm ___dep`;
`rm ___dep2`;
`mv ___Makefile Makefile`;