avoid empty rm -f in MM_Unix.pm

[perl5.git] / lib / ExtUtils / MM_Unix.pm

diff --git a/lib/ExtUtils/MM_Unix.pm b/lib/ExtUtils/MM_Unix.pm
index bda3292..8a7df79 100644 (file)
--- a/lib/ExtUtils/MM_Unix.pm
+++ b/lib/ExtUtils/MM_Unix.pm
@@ -2403,6 +2403,7 @@ $(OBJECT) : $(FIRST_MAKEFILE)
 }.$self->{MAKEFILE}.q{ : Makefile.PL $(CONFIGDEP)
        }.$self->{NOECHO}.q{echo "Makefile out-of-date with respect to $?"
        }.$self->{NOECHO}.q{echo "Cleaning current config before rebuilding Makefile..."
+       -}.$self->{NOECHO}.q{$(RM_F) }."$self->{MAKEFILE}.old".q{
        -}.$self->{NOECHO}.q{$(MV) }."$self->{MAKEFILE} $self->{MAKEFILE}.old".q{
        -$(MAKE) -f }.$self->{MAKEFILE}.q{.old clean $(DEV_NULL) || $(NOOP)
        $(PERL) "-I$(PERL_ARCHLIB)" "-I$(PERL_LIB)" Makefile.PL }.join(" ",map(qq["$_"],@ARGV)).q{
@@ -2922,7 +2923,8 @@ realclean purge ::  clean
         push(@m, "     $self->{RM_F} \$(INST_DYNAMIC) \$(INST_BOOT)\n");
         push(@m, "     $self->{RM_F} \$(INST_STATIC)\n");
     }
-    push(@m, " $self->{RM_F} " . join(" ", values %{$self->{PM}}) . "\n");
+    push(@m, " $self->{RM_F} " . join(" ", values %{$self->{PM}}) . "\n")
+       if keys %{$self->{PM}};
     my(@otherfiles) = ($self->{MAKEFILE},
                       "$self->{MAKEFILE}.old"); # Makefiles last
     push(@otherfiles, $attribs{FILES}) if $attribs{FILES};