[project @ 2000-05-25 13:11:17 by panne]

[ghc-hetmet.git] / ghc / driver / ghc-recomp.lprl

diff --git a/ghc/driver/ghc-recomp.lprl b/ghc/driver/ghc-recomp.lprl
deleted file mode 100644 (file)
index 39efdb9..0000000
--- a/ghc/driver/ghc-recomp.lprl
+++ /dev/null
@@ -1,131 +0,0 @@
-%************************************************************************
-%*                                                                     *
-\section[Driver-recomp-chking]{Recompilation checker}
-%*                                                                     *
-%************************************************************************
-
-\begin{code}
-sub runRecompChkr {
-    local($ifile,      # originating input file
-         $ifile_hs,    # post-unlit, post-cpp, etc., input file
-         $ifile_root,  # input filename minus suffix
-         $ofile_target,# the output file that we ultimately hope to produce
-         $hifile_target# the .hi file ... (ditto)
-        ) = @_;
-
-    ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
-     $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
-
-    if ( ! -f $ofile_target ) {
-       print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n";
-       return(1);
-    }
-
-    ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
-     $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
-
-    if ( ! -f $hifile_target ) {
-       print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n";
-       return(1);
-    }
-
-    ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
-     $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
-
-    if ($i_mtime > $o_mtime) {
-       print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n";
-       return(1);
-    }
-
-    # OK, let's see what we used last time; if none of it has
-    # changed, then we don't need to continue with this compilation.
-    require('ghc-iface.prl')
-       || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl (recomp)!\n");
-    &tidy_up_and_die(1,"$Pgm:recomp:why has $hifile_target already been read?\n")
-       if $HiHasBeenRead{'old'} == 1;
-
-    &readHiFile('old',$hifile_target);
-    %ModUsed = ();
-    %Used    = ();
-
-    foreach $ul ( split(/;\n/, $Stuff{'old:usages'}) ) {
-
-       $ul =~ /^(\S+)\s+(\d+)\s+:: (.*)/ || die "$Pgm: bad old usages line!\n";
-       local($mod)    = $1;
-       local($modver) = $2;
-       local(@thing)  = split(/\s+/, $3);
-
-       $ModUsed{$mod} = $modver;
-
-       local($key, $n);
-       while ( $#thing >= 0 ) {
-           $key = "$mod:" . $thing[0];
-           $n   = $thing[1];
-           $Used{$key} = $n;
-           shift @thing; shift @thing; # toss two
-       }
-    }
-
-    # see if we can avoid recompilation just by peering at the
-    # module-version numbers:
-
-    &makeHiMap() unless $HiMapDone;
-
-    local($used_modules_have_changed) = 0;
-    used_mod: foreach $um ( keys %ModUsed ) {
-       if ( ! defined($HiMap{$um}) ) {
-           print STDERR "$Pgm:recompile:interface for used module $um no longer exists\n";
-           foreach $hm ( keys %HiMap ) {
-               print STDERR "$hm ==> ", $HiMap{$hm}, "\n";
-           }
-           return 1;
-       } else {
-           if ( $HiHasBeenRead{$um} ) {
-               print STDERR "$Pgm:very strange that $um.hi has already been read?!?\n"
-           } else {
-               &readHiFile($um, $HiMap{$um});
-           }
-       }
-       if ( $ModUsed{$um} != $ModuleVersion{$um} ) {
-           print STDERR "used module version: $um: was: ",$ModUsed{$um}, "; is ", $ModuleVersion{$um}, "\n";
-           $used_modules_have_changed = 1;
-           last used_mod; # no point continuing...
-       }
-    }
-    return 0 if ! $used_modules_have_changed;
-
-    # well, some module version has changed, but maybe no
-    # entity of interest has...
-print STDERR "considering used entities...\n";
-    local($used_entities_have_changed) = 0;
-
-    used_entity: foreach $ue ( keys %Used ) {
-       $ue =~ /([A-Z][A-Za-z0-9_']*):(.+)/;
-       local($ue_m) = $1;
-       local($ue_n) = $2;
-
-       die "$Pgm:interface for used-entity module $ue_m doesn't exist\n"
-           if ! defined($HiMap{$ue_m});
-
-       &readHiFile($ue_m, $HiMap{$ue_m}) unless $HiHasBeenRead{$ue_m};
-       # we might not have read it before...
-
-       if ( !defined($Version{$ue}) ) {
-           print STDERR "No version info for $ue?!\n";
-
-       } elsif ( $Used{$ue} != $Version{$ue} ) {
-           print STDERR "$Pgm:recompile: used entity changed: $ue: was version ",$Used{$ue},"; is ", $Version{$ue}, "\n";
-           $used_entities_have_changed = 1;
-           last used_entity; # no point continuing...
-       }
-    }
-    return 0 if ! $used_entities_have_changed;
-
-    return(1); # OK, *recompile*
-}
-\end{code}
-
-\begin{code}
-# make "require"r happy...
-1;
-\end{code}