[nasm:nasm-2.16.xx] mkdep.pl: do not generate a selfrule for embedded dependencies

[nasm-bot for H. Peter Anvin]

Commit-ID:  e72d4bf5198dc3cb279df0b22e763d72742213bd
Gitweb:     http://repo.or.cz/w/nasm.git?a=commitdiff;h=e72d4bf5198dc3cb279df0b22e763d72742213bd
Author:     H. Peter Anvin <hpa at zytor.com>
AuthorDate: Fri, 12 Apr 2024 14:47:54 -0700
Committer:  H. Peter Anvin <hpa at zytor.com>
CommitDate: Fri, 12 Apr 2024 14:47:54 -0700

mkdep.pl: do not generate a selfrule for embedded dependencies

If we are using embedded dependencies, do not generate a selfrule. It
is meaningless.

Signed-off-by: H. Peter Anvin <hpa at zytor.com>


---
 tools/mkdep.pl | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/mkdep.pl b/tools/mkdep.pl
index 65dac8b6..3c1b6acb 100755
--- a/tools/mkdep.pl
+++ b/tools/mkdep.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 ## --------------------------------------------------------------------------
 ##
-##   Copyright 1996-2020 The NASM Authors - All Rights Reserved
+##   Copyright 1996-2024 The NASM Authors - All Rights Reserved
 ##   See the file AUTHORS included with the NASM distribution for
 ##   the specific copyright holders.
 ##
@@ -127,6 +127,11 @@ sub alldeps($$) {
 sub convert_file($$) {
     my($file,$sep) = @_;
 
+    if ($file eq '' || $file eq File::Spec->curdir() ||
+	$file eq File::Spec->rootdir()) {
+	return undef;
+    }
+
     my @fspec = (basename($file));
     while ( ($file = dirname($file)) ne File::Spec->curdir() &&
 	    $file ne File::Spec->rootdir() ) {
@@ -208,7 +213,10 @@ sub insert_deps($) {
     close($in);
 
     $is_external = $is_external && defined($external);
-    undef $external if ( !$is_external );
+    if ( !$is_external ) {
+	undef $external;
+	$selfrule = 0;
+    }
 
     my $out;
     my $outpath;
@@ -228,7 +236,6 @@ sub insert_deps($) {
 	}
 	unlink($external);
     } else {
-
 	my $e;
 
 	foreach my $dfile ($external, sort(keys(%deps)) ) {