1 # *** MSUB does some substitutions here ***
4 # tries to work like mkdependC
6 # ToDo: strip out all the .h junk
8 ($Pgm = $0) =~ s/.*\/([^\/]+)$/\1/;
9 $Usage = "usage: $Pgm: not done yet\n";
11 $Status = 0; # just used for exit() status
15 $Begin_magic_str = "# DO NOT DELETE: Beginning of C dependencies\n";
16 $End_magic_str = "# DO NOT DELETE: End of C dependencies\n";
20 $Col_width = 78; # ignored
24 # the following is a hack, so we can use RAWCPP, but there you go;
25 # put in just enough #defines that mkdependC will not barf.
26 $HostPlatform = '$(HOSTPLATFORM)';
28 if ( $HostPlatform =~ /^i386-/ ) {
29 push(@Defines, '-D__i386__');
31 if ( $HostPlatform =~ /^sparc-/ ) {
32 push(@Defines, '-D__sparc__');
34 if ( $HostPlatform =~ /-solaris2$/ ) {
35 push(@Defines, '-D__svr4__');
38 &mangle_command_line_args();
40 if ( ! $Makefile && -f 'makefile' ) {
41 $Makefile = 'makefile';
42 } elsif ( ! $Makefile && -f 'Makefile') {
43 $Makefile = 'Makefile';
44 } elsif ( ! $Makefile) {
45 die "$Pgm: no makefile or Makefile found\n";
51 print STDERR "CPP defines=@Defines\n" if $Verbose;
52 print STDERR "Include_dirs=$Include_dirs\n" if $Verbose;
54 foreach $sf (@Src_files) {
55 # just like lit-inputter
56 # except it puts each file through CPP and
57 # a de-commenter (not implemented);
58 # builds up @Depend_lines
59 print STDERR "Here we go for source file: $sf\n" if $Verbose;
60 ($of = $sf) =~ s/\.(c|hc)$/$Obj_suffix/;
62 &slurp_file($sf, 'fh00');
65 # OK, mangle the Makefile
66 unlink("$Makefile.bak");
67 rename($Makefile,"$Makefile.bak");
68 # now copy Makefile.bak into Makefile, rm'ing old dependencies
70 open(OMKF,"< $Makefile.bak") || die "$Pgm: can't open $Makefile.bak: $!\n";
71 open(NMKF,"> $Makefile") || die "$Pgm: can't open $Makefile: $!\n";
74 while ($_ && $_ ne $Begin_magic_str) { # copy through, 'til Begin_magic_str
78 while ($_ && $_ ne $End_magic_str) { # delete 'til End_magic_str
82 print $Begin_magic_str;
85 while (<OMKF>) { # copy the rest through
92 sub mangle_command_line_args {
93 while($_ = $ARGV[0]) {
99 } elsif ( /^-D(.*)/ ) { # recognized wherever they occur
102 $Include_dirs .= " $_";
104 } elsif ($Dashdashes_seen != 1) { # not between -- ... --
108 $Makefile = &grab_arg_arg($_);
110 $Obj_suffix = &grab_arg_arg($_);
112 $Begin_magic_str = &grab_arg_arg($_) . "\n";
114 $End_magic_str = &grab_arg_arg($_) . "\n";
116 $Width = &grab_arg_arg($_);
118 print STDERR "$Pgm: unknown option ignored: $_\n";
120 push(@Src_files, $_);
123 } elsif ($Dashdashes_seen == 1) { # where we ignore unknown options
124 push(@Src_files,$_) if ! /^-/;
133 ($rest_of_arg = $option) =~ s/^-.//;
136 return($rest_of_arg);
137 } elsif ($#ARGV >= 0) {
138 local($temp) = $ARGV[0]; shift(@ARGV);
141 die "$Pgm: no argument following $option option\n";
145 sub slurp_file { # follows an example in the `open' item in perl man page
146 local($fname,$fhandle) = @_;
147 local($depend); # tmp
148 $fhandle++; # a string increment
150 $fname = &tidy_dir_names($fname);
152 unless (open($fhandle, "$(RAWCPP) $Include_dirs @Defines $fname |")) {
153 die "$Pgm: Can't open $fname: $!\n";
155 line: while (<$fhandle>) {
157 next line if /^#(ident|pragma)/;
158 chop; # rm trailing newline
160 $_ = &tidy_dir_names($_);
162 # strip junk off the front and back
163 $_ =~ s/^#\s+\d+\s+//;
166 # a little bit of ad-hoc fiddling now:
167 # don't bother w/ dependencies on /usr/include stuff
168 # don't bother if it looks like a GCC built-in hdr file
169 # don't bother with funny yacc-ish files
170 # don't bother with "literate" .h files (.lh); we'll just
171 # depend on the de-litified versions (which have better info)
172 # don't let a file depend on itself
173 next line if /^\/usr\/include/;
174 next line if /\/gcc-lib\/[^\/\n]+\/[\.0-9]+\/include\//;
175 next line if /\/yaccpar/;
176 next line if /\/bison\.(simple|hairy)/;
177 next line if /\.lh$/;
178 next line if $_ eq $fname;
180 print STDERR "$fname :: $_\n" if $Verbose;
182 # ToDo: some sanity checks that we still have something reasonable?
184 $depend = "$of : $_\n";
185 next line if $Depend_seen{$depend}; # already seen this one...
187 # OK, it's a new one.
188 push (@Depend_lines, $depend);
189 $Depend_seen{$depend} = 1;
194 sub tidy_dir_names { # rm various pernicious dir-name combinations...
197 $str =~ s|/[^/.][^/]*/\.\.||g; # nuke: /<dir>/..
198 $str =~ s|/\.[^.][^/]*/\.\.||g; # nuke: /./.. (and others)