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06-handle-1-transform-list.patch
- To: Automake <automake at gnu dot org>
- Subject: 06-handle-1-transform-list.patch
- From: Akim Demaille <akim at epita dot fr>
- Date: Sun, 28 Jan 2001 17:14:51 +0100
- List-Id: Discussion list for automake <automake.gnu.org><mailto:automake-request@gnu.org?subject=unsubscribe>
Index: ChangeLog
from Akim Demaille <akim@epita.fr>
* automake.in (handle_single_transform_list): if (@list) { foreach
(@list) ...} can be written as a simple `foreach' loop.
Index: automake.in
--- automake.in Fri, 26 Jan 2001 22:17:03 +0100 akim (am/f/39_automake.i 1.8 755)
+++ automake.in Sat, 27 Jan 2001 01:52:33 +0100 akim (am/f/39_automake.i 1.8 755)
@@ -1154,14 +1154,18 @@ sub check_libobjs_sources
}
}
+
+# ($LINKER, @OBJECTS)
+# handle_single_transform_list ($VAR, $DERIVED, $OBJ, @FILES)
+# -----------------------------------------------------------
# Does much of the actual work for handle_source_transform.
# Arguments are:
-# name of resulting executable or library ("derived")
-# object extension (e.g., `$U.lo')
-# list of source files to transform
+# $DERIVED is the name of resulting executable or library
+# $OBJ is the object extension (e.g., `$U.lo')
+# @FILES is the list of source files to transform
# Result is a list
-# first element is name of linker to use (empty string for default linker)
-# remaining elements are names of objects
+# $LINKER is name of linker to use (empty string for default linker)
+# @OBJECTS are names of objects
sub handle_single_transform_list
{
local ($var, $derived, $obj, @files) = @_;
@@ -1169,260 +1173,260 @@ sub handle_single_transform_list
local ($nonansi_obj) = $obj;
$nonansi_obj =~ s/\$U//g;
local (%linkers_used) = ();
- if (@files > 0)
+
+ # Turn sources into objects.
+ foreach (@files)
{
- # Turn sources into objects.
- foreach (@files)
- {
- # Configure substitutions in _SOURCES variables are errors.
- if (/^\@.*\@$/)
- {
- &am_line_error ($var, "$var includes configure substitution \`$_'");
- next;
- }
-
- # If the source file is in a subdirectory then the `.o' is
- # put into the current directory.
-
- # Split file name into base and extension.
- local ($full, $directory, $base, $extension, $linker, $object);
- next if ! /^((.*)\/)?([^\/]*)\.(.*)$/;
- $full = $_;
- $directory = $2;
- $base = $3;
- $extension = $4;
-
- local ($xbase) = $base;
-
- # We must generate a rule for the object if it requires
- # its own flags.
- local ($rule) = '';
- local ($renamed) = 0;
-
- $extension = &derive_suffix ($extension);
- local ($lang) = $extension_map{$extension};
- if ($lang)
- {
- &saw_extension ($extension);
- # Found the language, so see what it says.
- local ($subr) = 'lang_' . $lang . '_rewrite';
- # Note: computed subr call.
- local ($r) = & $subr ($directory, $base, $extension);
- # Skip this entry if we were asked not to process it.
- next if $r == $LANG_IGNORE;
-
- # Now extract linker and other info.
- $linker = $language_map{$lang . '-linker'};
-
- local ($this_obj_ext);
- if ($language_map{$lang . '-ansi-p'})
- {
- $object = $base . $obj;
- $this_obj_ext = $obj;
- }
- else
- {
- $object = $base . $nonansi_obj;
- $this_obj_ext = $nonansi_obj;
- }
-
- if ($language_map{$lang . '-flags'} ne ''
- && &variable_defined ($derived . '_'
- . $language_map{$lang . '-flags'}))
- {
- # We have a per-executable flag in effect for this
- # object. In this case we rewrite the object's
- # name to ensure it is unique. We also require
- # the `compile' program to deal with compilers
- # where `-c -o' does not work.
-
- # We choose the name `DERIVED-OBJECT' to ensure
- # (1) uniqueness, and (2) continuity between
- # invocations. However, this will result in a
- # name that is too long for losing systems, in
- # some situations. So we provide _SHORTNAME to
- # override.
-
- local ($dname) = $derived;
- if (&variable_defined ($derived . '_SHORTNAME'))
- {
- # FIXME: should use the same conditional as
- # the _SOURCES variable. But this is really
- # silly overkill -- nobody should have
- # conditional shortnames.
- $dname = &variable_value ($derived . '_SHORTNAME');
- }
- $object = $dname . '-' . $object;
-
- &require_file ($FOREIGN, 'compile')
- if $lang eq 'c';
-
- if (! defined $language_map{$lang . '-compile'})
- {
- print STDERR "automake: programming error: $lang flags defined without compiler\n";
- exit 1;
- }
- # Compute the rule to compile this object.
- local ($flag) = $language_map{$lang . '-flags'};
- local ($val) = "(${derived}_${flag}";
- ($rule = $language_map{$lang . '-compile'}) =~
- s/\(AM_$flag/$val/;
-
- $rule .= ' ' . $language_map{$lang . '-output-arg'};
- # For C we have to add the -o, because the
- # standard rule doesn't include it.
- if ($language_map{$lang . '-flags'} eq 'CFLAGS')
- {
- $rule .= ' -o $@';
- }
-
- $renamed = 1;
- }
-
- # If rewrite said it was ok, put the object into a
- # subdir.
- if ($r == $LANG_SUBDIR && $directory ne '')
- {
- $object = $directory . '/' . $object;
- $xbase = $directory . '/' . $base;
- }
-
- # If doing dependency tracking, then we can't print
- # the rule. If we have a subdir object, we need to
- # generate an explicit rule. Actually, in any case
- # where the object is not in `.' we need a special
- # rule. The per-object rules in this case are
- # generated later, by add_depend2.
- if (($use_dependencies
- && $rule ne ''
- && $language_map{$lang . '-autodep'} ne 'no')
- || $directory ne '')
- {
- $rule = '';
- local ($obj_sans_ext) = substr ($object, 0,
- - length ($this_obj_ext));
- $lang_specific_files{$lang} .= (' ' . $derived
- . ' ' . $full
- . ' ' . $obj_sans_ext);
- }
- }
- elsif ($extension eq 'o')
- {
- # This is probably the result of a direct suffix rule.
- # In this case we just accept the rewrite. FIXME:
- # this fails if we want libtool objects.
- $object = $base . '.' . $extension;
- $linker = '';
- }
- else
- {
- # No error message here. Used to have one, but it was
- # very unpopular.
- next;
- }
-
- $linkers_used{$linker} = 1;
-
- push (@result, $object);
-
- if (defined $object_map{$object})
- {
- if ($object_map{$object} ne $full)
- {
- &am_error ("object \`$object' created by \`$full' and \`$object_map{$object}'");
- }
- }
- else
- {
- local (@dep_list) = ();
- $object_map{$object} = $full;
-
- # If file is in subdirectory, we need explicit
- # dependency.
- if ($directory ne '' || $renamed)
- {
- push (@dep_list, $full);
- }
-
- # If resulting object is in subdir, we need to make
- # sure the subdir exists at build time.
- if ($object =~ /\//)
- {
- # FIXME: check that $DIRECTORY is somewhere in the
- # project
-
- # We don't allow `..' in object file names for
- # *any* source, not just Java. For Java it just
- # doesn't make sense, but in general it is
- # a problem because we can't pick a good name for
- # the .deps entry.
- if ($object =~ /(\/|^)\.\.\//)
- {
- &am_error ("\`$full' contains \`..' component but should not");
- }
-
- push (@dep_list, $directory . '/.dirstamp');
-
- # If we're generating dependencies, we also want
- # to make sure that the appropriate subdir of the
- # .deps directory is created.
- if ($use_dependencies)
- {
- push (@dep_list, '.deps/' . $directory . '/.dirstamp');
- }
-
- if (! defined $directory_map{$directory})
- {
- $directory_map{$directory} = 1;
- $output_rules .= ($directory . "/.dirstamp:\n"
- . "\t\@\$(mkinstalldirs) $directory\n"
- . "\t\@: > $directory/.dirstamp\n");
- if ($use_dependencies)
- {
- $output_rules .= ('.deps/' . $directory
- . "/.dirstamp:\n"
- . "\t\@\$(mkinstalldirs) .deps/$directory\n"
- . "\t\@: > .deps/$directory/.dirstamp\n");
- }
- }
- }
-
- &pretty_print_rule ($object . ':', "\t", @dep_list)
- if scalar @dep_list > 0 || $rule ne '';
-
- # Print the rule if we have one.
- if ($rule ne '')
- {
- # Turn `$@' into name of our object file.
- local ($xform);
- ($xform = $object) =~ s,/,\\/,g;
- $rule =~ s/\$\@/$xform/;
-
- # We cannot use $< here since this is an explicit
- # rule and not all makes handle that.
- $rule .= " \`test -f $full || echo '\$(srcdir)/'\`$full";
-
- # FIXME: handle .lo and .obj as well.
- $output_rules .= "\t" . $rule . "\n";
- }
- }
-
- # Transform .o or $o file into .P file (for automatic
- # dependency code).
- if ($lang
- && ($language_map{$lang . '-autodep'} ne 'no'
- || $language_map{$lang . '-derived-autodep'} eq 'yes'))
- {
- local ($depfile) = $object;
- $depfile =~ s/\.([^.]*)$/.P$1/;
- $depfile =~ s/\$\(OBJEXT\)$/o/ if $seen_objext;
- $dep_files{'$(DEPDIR)/' . $depfile} = 1;
- }
- }
+ # Configure substitutions in _SOURCES variables are errors.
+ if (/^\@.*\@$/)
+ {
+ &am_line_error ($var, "$var includes configure substitution \`$_'");
+ next;
+ }
+
+ # If the source file is in a subdirectory then the `.o' is
+ # put into the current directory.
+
+ # Split file name into base and extension.
+ local ($full, $directory, $base, $extension, $linker, $object);
+ next if ! /^((.*)\/)?([^\/]*)\.(.*)$/;
+ $full = $_;
+ $directory = $2;
+ $base = $3;
+ $extension = $4;
+
+ local ($xbase) = $base;
+
+ # We must generate a rule for the object if it requires
+ # its own flags.
+ local ($rule) = '';
+ local ($renamed) = 0;
+
+ $extension = &derive_suffix ($extension);
+ local ($lang) = $extension_map{$extension};
+ if ($lang)
+ {
+ &saw_extension ($extension);
+ # Found the language, so see what it says.
+ local ($subr) = 'lang_' . $lang . '_rewrite';
+ # Note: computed subr call.
+ local ($r) = & $subr ($directory, $base, $extension);
+ # Skip this entry if we were asked not to process it.
+ next if $r == $LANG_IGNORE;
+
+ # Now extract linker and other info.
+ $linker = $language_map{$lang . '-linker'};
+
+ local ($this_obj_ext);
+ if ($language_map{$lang . '-ansi-p'})
+ {
+ $object = $base . $obj;
+ $this_obj_ext = $obj;
+ }
+ else
+ {
+ $object = $base . $nonansi_obj;
+ $this_obj_ext = $nonansi_obj;
+ }
+
+ if ($language_map{$lang . '-flags'} ne ''
+ && &variable_defined ($derived . '_'
+ . $language_map{$lang . '-flags'}))
+ {
+ # We have a per-executable flag in effect for this
+ # object. In this case we rewrite the object's
+ # name to ensure it is unique. We also require
+ # the `compile' program to deal with compilers
+ # where `-c -o' does not work.
+
+ # We choose the name `DERIVED-OBJECT' to ensure
+ # (1) uniqueness, and (2) continuity between
+ # invocations. However, this will result in a
+ # name that is too long for losing systems, in
+ # some situations. So we provide _SHORTNAME to
+ # override.
+
+ local ($dname) = $derived;
+ if (&variable_defined ($derived . '_SHORTNAME'))
+ {
+ # FIXME: should use the same conditional as
+ # the _SOURCES variable. But this is really
+ # silly overkill -- nobody should have
+ # conditional shortnames.
+ $dname = &variable_value ($derived . '_SHORTNAME');
+ }
+ $object = $dname . '-' . $object;
+
+ &require_file ($FOREIGN, 'compile')
+ if $lang eq 'c';
+
+ if (! defined $language_map{$lang . '-compile'})
+ {
+ print STDERR "automake: programming error: $lang flags defined without compiler\n";
+ exit 1;
+ }
+ # Compute the rule to compile this object.
+ local ($flag) = $language_map{$lang . '-flags'};
+ local ($val) = "(${derived}_${flag}";
+ ($rule = $language_map{$lang . '-compile'}) =~
+ s/\(AM_$flag/$val/;
+
+ $rule .= ' ' . $language_map{$lang . '-output-arg'};
+ # For C we have to add the -o, because the
+ # standard rule doesn't include it.
+ if ($language_map{$lang . '-flags'} eq 'CFLAGS')
+ {
+ $rule .= ' -o $@';
+ }
+
+ $renamed = 1;
+ }
+
+ # If rewrite said it was ok, put the object into a
+ # subdir.
+ if ($r == $LANG_SUBDIR && $directory ne '')
+ {
+ $object = $directory . '/' . $object;
+ $xbase = $directory . '/' . $base;
+ }
+
+ # If doing dependency tracking, then we can't print
+ # the rule. If we have a subdir object, we need to
+ # generate an explicit rule. Actually, in any case
+ # where the object is not in `.' we need a special
+ # rule. The per-object rules in this case are
+ # generated later, by add_depend2.
+ if (($use_dependencies
+ && $rule ne ''
+ && $language_map{$lang . '-autodep'} ne 'no')
+ || $directory ne '')
+ {
+ $rule = '';
+ local ($obj_sans_ext) = substr ($object, 0,
+ - length ($this_obj_ext));
+ $lang_specific_files{$lang} .= (' ' . $derived
+ . ' ' . $full
+ . ' ' . $obj_sans_ext);
+ }
+ }
+ elsif ($extension eq 'o')
+ {
+ # This is probably the result of a direct suffix rule.
+ # In this case we just accept the rewrite. FIXME:
+ # this fails if we want libtool objects.
+ $object = $base . '.' . $extension;
+ $linker = '';
+ }
+ else
+ {
+ # No error message here. Used to have one, but it was
+ # very unpopular.
+ next;
+ }
+
+ $linkers_used{$linker} = 1;
+
+ push (@result, $object);
+
+ if (defined $object_map{$object})
+ {
+ if ($object_map{$object} ne $full)
+ {
+ &am_error ("object \`$object' created by \`$full' and \`$object_map{$object}'");
+ }
+ }
+ else
+ {
+ local (@dep_list) = ();
+ $object_map{$object} = $full;
+
+ # If file is in subdirectory, we need explicit
+ # dependency.
+ if ($directory ne '' || $renamed)
+ {
+ push (@dep_list, $full);
+ }
+
+ # If resulting object is in subdir, we need to make
+ # sure the subdir exists at build time.
+ if ($object =~ /\//)
+ {
+ # FIXME: check that $DIRECTORY is somewhere in the
+ # project
+
+ # We don't allow `..' in object file names for
+ # *any* source, not just Java. For Java it just
+ # doesn't make sense, but in general it is
+ # a problem because we can't pick a good name for
+ # the .deps entry.
+ if ($object =~ /(\/|^)\.\.\//)
+ {
+ &am_error ("\`$full' contains \`..' component but should not");
+ }
+
+ push (@dep_list, $directory . '/.dirstamp');
+
+ # If we're generating dependencies, we also want
+ # to make sure that the appropriate subdir of the
+ # .deps directory is created.
+ if ($use_dependencies)
+ {
+ push (@dep_list, '.deps/' . $directory . '/.dirstamp');
+ }
+
+ if (! defined $directory_map{$directory})
+ {
+ $directory_map{$directory} = 1;
+ $output_rules .= ($directory . "/.dirstamp:\n"
+ . "\t\@\$(mkinstalldirs) $directory\n"
+ . "\t\@: > $directory/.dirstamp\n");
+ if ($use_dependencies)
+ {
+ $output_rules .= ('.deps/' . $directory
+ . "/.dirstamp:\n"
+ . "\t\@\$(mkinstalldirs) .deps/$directory\n"
+ . "\t\@: > .deps/$directory/.dirstamp\n");
+ }
+ }
+ }
+
+ &pretty_print_rule ($object . ':', "\t", @dep_list)
+ if scalar @dep_list > 0 || $rule ne '';
+
+ # Print the rule if we have one.
+ if ($rule ne '')
+ {
+ # Turn `$@' into name of our object file.
+ local ($xform);
+ ($xform = $object) =~ s,/,\\/,g;
+ $rule =~ s/\$\@/$xform/;
+
+ # We cannot use $< here since this is an explicit
+ # rule and not all makes handle that.
+ $rule .= " \`test -f $full || echo '\$(srcdir)/'\`$full";
+
+ # FIXME: handle .lo and .obj as well.
+ $output_rules .= "\t" . $rule . "\n";
+ }
+ }
+
+ # Transform .o or $o file into .P file (for automatic
+ # dependency code).
+ if ($lang
+ && ($language_map{$lang . '-autodep'} ne 'no'
+ || $language_map{$lang . '-derived-autodep'} eq 'yes'))
+ {
+ local ($depfile) = $object;
+ $depfile =~ s/\.([^.]*)$/.P$1/;
+ $depfile =~ s/\$\(OBJEXT\)$/o/ if $seen_objext;
+ $dep_files{'$(DEPDIR)/' . $depfile} = 1;
+ }
}
return (&resolve_linker (%linkers_used), @result);
}
+
+
# Handle SOURCE->OBJECT transform for one program or library.
# Arguments are: