X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/xfonts-traditional/blobdiff_plain/fe6a7d791ffe20cb0cf74a22e2c024dc6319574e..e704f64c8201aa7e47dff5f7d77a9c1cc1d6aeeb:/mkrules

diff --git a/mkrules b/mkrules
index b55b397..a0d08de 100755
--- a/mkrules
+++ b/mkrules
@@ -25,6 +25,7 @@ chars () {
 }
 
 seenrules=/
+seenfoundries=/
 
 while read keyword rest; do
 	case "$keyword" in
@@ -54,7 +55,19 @@ while read keyword rest; do
 			print or die $!;
 			exit;
 		' <$good`
-		printf "%s %s" "$oldfoundry" "$newfoundry" >>rules/foundries.new
+		case "$seenfoundries" in
+		*/"$oldfoundry,$newfoundry"/*)
+			;;
+		*/"$oldfoundry,"*)
+			echo >&2 "inconsistent foundry mapping"
+			exit 1
+			;;
+		*)
+			seenfoundries=$seenfoundries$oldfoundry,$newfoundry/
+			printf >>rules/foundries.new \
+				"%s %s\n" "$oldfoundry" "$newfoundry"
+			;;
+		esac
 		case "$seenrules" in
 		*/"$newfoundry,$key"/*)
 			exec 3>>rules/$newfoundry,$key.rules