Attempting to fix some depend build issues on win32 by passing the list of files via stdin instead of on the command line. r=cls

build/unix/mddepend.pl

@@ -35,7 +35,7 @@ $outfile = shift @ARGV;
 
 @alldeps=();
 # Parse dependency files
-while ($line = <>) {
+while ($line = <STDIN>) {
   chomp $line;
   ($obj,$rest) = split /\s*:\s+/, $line, 2;
   next if $obj eq '';

config/rules.mk

@@ -1545,7 +1545,7 @@ ifdef PERL
 # because it handles the case when header files are removed from the build.
 # 'make' would complain that there is no way to build missing headers.
 $(MDDEPDIR)/.all.pp: FORCE
-	@$(PERL) $(BUILD_TOOLS)/mddepend.pl $@ $(MDDEPEND_FILES) 
+	@$(PERL) $(BUILD_TOOLS)/mddepend.pl $@ < $(MDDEPEND_FILES) 
 -include $(MDDEPDIR)/.all.pp
 else
 include $(MDDEPEND_FILES)