showdeps: Fix GNU make 4.x compatibility.

It seems that the debug output format changed at some point.

1 files changed, 1 insertions, 1 deletions

diff --git a/showdeps b/showdeps
index f59aeca..56d355f 100644
--- a/showdeps
+++ b/showdeps
@@ -9,7 +9,7 @@ my %prereqs;
 
 $ENV{LANGUAGE} = "en_US";
 for (`make --debug=b -n`) {
-	next if not /Prerequisite `([^']+)' is newer than target `([^']+)'/;
+	next if not /Prerequisite [`']([^']+)' is newer than target [`']([^']+)'/;
 
 	# Don't consider prerequisites that are targets.
 	unless ($ARGV[0] and $ARGV[0] eq '-a') {