[project @ 1999-01-21 19:56:48 by sof]

[ghc-hetmet.git] / ghc / utils / mkdependHS / mkdependHS.prl

diff --git a/ghc/utils/mkdependHS/mkdependHS.prl b/ghc/utils/mkdependHS/mkdependHS.prl
index e821971..c2152aa 100644 (file)
--- a/ghc/utils/mkdependHS/mkdependHS.prl
+++ b/ghc/utils/mkdependHS/mkdependHS.prl
@@ -1,9 +1,9 @@
 #
 # perl script expect the following variables to be prepended:
 #
-#  RAWCPP TMPDIR TOP_PWD
+#  RAWCPP TMPDIR TOP_PWD HscIfaceFileVersion
 #  libdir libexecdir datadir INSTALLING
-#  ProjectVersionInt SED 
+#  SED 
 #
 # tries to work like mkdependC - capable of dealing with:
 #
@@ -58,7 +58,7 @@ mkdependHS-specific options (not between --'s):
                 Regard <file> as not "stable"; i.e., generate dependencies
                 on it (if any). This option is normally used in conjunction 
                 with the --exclude-directory option.
-
+               
 EOUSAGE
 
 $Status     = 0; # just used for exit() status
@@ -84,6 +84,9 @@ $InstDataDirGhc    = "${datadir}";
 $Unlit = ($INSTALLING) ? "${InstLibExecDirGhc}/unlit" 
                       : "${TopPwd}/ghc/utils/unlit/unlit";
 
+$HiBootVersion = $HscIfaceFileVersion;
+$hi_boot_with_version = 0;
+
 $Begin_magic_str = "# DO NOT DELETE: Beginning of Haskell dependencies\n";
 $End_magic_str = "# DO NOT DELETE: End of Haskell dependencies\n";
 @Obj_suffix =  ("o");
@@ -100,6 +103,7 @@ $Include_dirs = '-I.';
 $Makefile = '';
 @Src_files = ();
 $Include_prelude = 0;
+@Defines = ();
 
 # Delete temp. file if script is halted.
 sub quit_upon_signal { print STDERR "Deleting $Tmp_prefix.hs .. \n"; unlink "$Tmp_prefix.hs"; }
@@ -113,10 +117,6 @@ if ( $Status ) {
     exit(1);
 }
 
-push(@Defines,
-     ( #OLD: "-D__HASKELL1__=$Haskell_1",
-      "-D__GLASGOW_HASKELL__=$ProjectVersionInt"));
-
 @Import_dirs  = split(/:/,$Import_dirs);
 @Include_dirs = split(/\s+/,$Include_dirs); # still has -I's in it
 
@@ -192,6 +192,7 @@ foreach $sf (@Src_files) {
     }
     &slurp_file_for_imports($file_to_read, $sf);
 
+    # Delete the temporary.
     if ( $sf =~ /\.l(hs|y)$/ ) {
        unlink "$Tmp_prefix.hs";
     }
@@ -273,7 +274,7 @@ sub mangle_command_line_args {
             
            } elsif ( /^-(x|-exclude-module=)(.*)/ ) { 
                local($thing) = &grab_arg_arg($1,$2);
-               $IgnoreMe{$thing} = 'y';
+               $IgnoreMe{$thing} = 'Y';
            } elsif ( /^-(X|-exclude-directory=)(.*)/ ) { 
                foreach $d ( split(/:/,&grab_arg_arg($1, $2)) ) {
                    push(@Ignore_dirs,"$d");
@@ -356,7 +357,7 @@ sub preprocess_import_dirs {
             next unless /(.*)\.(hi|l?hs|l?y)$/;
             #don't tag it twice or overwrite it with a diff. value
             next if $IgnoreMe{$1};
-            print STDERR "Module $d/$1.$2 will be ignored\n" if $Verbose;
+            print STDERR "Module $d will be ignored\n" if $Verbose;
 
             $IgnoreMe{$1} = 'y';
         }
@@ -373,6 +374,14 @@ sub slurp_file_for_imports {
     $last_seen_dir =~ s/\/[^\/]+$//; # strip to dir name
     $last_seen_dir = '.' if ($last_seen_dir eq $orig_src_file);
 
+    local($mod_name) = $orig_src_file;
+
+    $mod_name =~ s/.*\/([^\/]+)$/$1/g;
+    $mod_name =~ s/^([^.]+)\.(.*)$/$1/;
+
+    print STDERR "Warning: processing module $mod_name, which I was supposed to ignore.\n"
+       if ( $IgnoreMe{$mod_name} eq 'Y' && $Warnings );
+
     &process_dependency('import',0,'Prelude') if ($Include_prelude);
 
     # we mangle #include's so they will also leave something
@@ -409,10 +418,7 @@ sub slurp_file_for_imports {
     close(SRCFILE) || exit(1);
     # remove temporary file, if any.
     if ($cleanup) {
-          # truncate() may not be implemented, so we
-          # play it safe here.
-          local(*TRUNC);
-          open(TRUNC,"> $read_from_file") && close(TRUNC);
+          unlink("$read_from_file");
     }
 }
 
@@ -422,7 +428,11 @@ sub process_dependency {
   local($todo,$source,$modname) = @_;
 
   if ($todo eq 'import') {
-    if ( $ModuleIn{$modname} ) {
+    if ( $IgnoreMe{$modname} eq 'Y' ) {
+         # user specifically asked for this module
+        # to be ignored.
+        $follow_file = '__ignore__';
+    } elsif ( $ModuleIn{$modname} ) {
         $follow_file = "$ModuleIn{$modname}/$modname.hi";
     } else { # hard way
        $follow_file =
@@ -456,7 +466,12 @@ sub process_dependency {
             local($source_dep);
 
             if ( $source ) {
-                $source_dep = "$int_file.hi-boot";
+               # if a version specific .hi-boot file exist, use it.
+               if ( -f "$int_file.hi-boot-${HiBootVersion}" ) {
+                          $source_dep = "$int_file.hi-boot-${HiBootVersion}";
+               } else {
+                  $source_dep = "$int_file.hi-boot";
+               }
             } else {
                local($str)="";
                foreach $obj (@Obj_suffix) {
@@ -525,6 +540,10 @@ sub find_in_Import_dirs {
         }
 
        if ( $source ) {
+           $name_to_check = "$import_dir/$modname.hi-boot-${HiBootVersion}";
+           print STDERR "trying... $name_to_check\n" if $Verbose >= 2; # very verbose
+           return($name_to_check) if -f $name_to_check;
+
            $name_to_check = "$import_dir/$modname.hi-boot";
            print STDERR "trying... $name_to_check\n" if $Verbose >= 2; # very verbose
            return($name_to_check) if -f $name_to_check;