diff -rupN monkeysphere-0.37/Makefile monkeysphere-0.37-patched/Makefile
--- monkeysphere-0.37/Makefile	2014-08-06 19:27:38.000000000 +0200
+++ monkeysphere-0.37-patched/Makefile	2015-07-31 19:51:57.539373097 +0200
@@ -42,11 +42,11 @@ install: all installman
 	mkdir -p $(DESTDIR)$(PREFIX)/share/doc/monkeysphere
 	printf "Monkeysphere %s\n" $(MONKEYSPHERE_VERSION) > $(DESTDIR)$(PREFIX)/share/monkeysphere/VERSION
 	install src/monkeysphere $(DESTDIR)$(PREFIX)/bin
-	sed -i 's:__SYSSHAREDIR_PREFIX__:$(PREFIX):' $(DESTDIR)$(PREFIX)/bin/monkeysphere
+	sed -i 's:__SYSSHAREDIR_PREFIX__:$(DESTDIR):' $(DESTDIR)$(PREFIX)/bin/monkeysphere
 	install src/monkeysphere-host $(DESTDIR)$(PREFIX)/sbin
-	sed -i 's:__SYSSHAREDIR_PREFIX__:$(PREFIX):' $(DESTDIR)$(PREFIX)/sbin/monkeysphere-host
+	sed -i 's:__SYSSHAREDIR_PREFIX__:$(DESTDIR):' $(DESTDIR)$(PREFIX)/sbin/monkeysphere-host
 	install src/monkeysphere-authentication $(DESTDIR)$(PREFIX)/sbin
-	sed -i 's:__SYSSHAREDIR_PREFIX__:$(PREFIX):' $(DESTDIR)$(PREFIX)/sbin/monkeysphere-authentication
+	sed -i 's:__SYSSHAREDIR_PREFIX__:$(DESTDIR):' $(DESTDIR)$(PREFIX)/sbin/monkeysphere-authentication
 	install src/monkeysphere-authentication-keys-for-user $(DESTDIR)$(PREFIX)/share/monkeysphere
 	install -m 0755 src/share/common $(DESTDIR)$(PREFIX)/share/monkeysphere
 	install -m 0644 src/share/defaultenv $(DESTDIR)$(PREFIX)/share/monkeysphere
@@ -59,8 +59,8 @@ install: all installman
 	ln -sf ../share/monkeysphere/keytrans $(DESTDIR)$(PREFIX)/bin/openpgp2pem
 	ln -sf ../share/monkeysphere/keytrans $(DESTDIR)$(PREFIX)/bin/openpgp2spki
 	install -m 0744 src/transitions/* $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions
-	sed -i 's:__SYSSHAREDIR_PREFIX__:$(PREFIX):' $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions/0.23
-	sed -i 's:__SYSSHAREDIR_PREFIX__:$(PREFIX):' $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions/0.28
+	sed -i 's:__SYSSHAREDIR_PREFIX__:$(DESTDIR):' $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions/0.23
+	sed -i 's:__SYSSHAREDIR_PREFIX__:$(DESTDIR):' $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions/0.28
 	install -m 0644 src/transitions/README.txt $(DESTDIR)$(PREFIX)/share/monkeysphere/transitions
 	install -m 0644 src/share/m/* $(DESTDIR)$(PREFIX)/share/monkeysphere/m
 	install -m 0644 src/share/mh/* $(DESTDIR)$(PREFIX)/share/monkeysphere/mh
diff -rupN monkeysphere-0.37/src/share/checkperms monkeysphere-0.37-patched/src/share/checkperms
--- monkeysphere-0.37/src/share/checkperms	2014-08-06 19:27:38.000000000 +0200
+++ monkeysphere-0.37-patched/src/share/checkperms	2015-07-31 19:52:18.170675985 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -T
+#!/usr/bin/perl
 
 # checkperms: ensure as best we can that a given file can only be
 # modified by the given user (or the superuser, naturally).  This
diff -rupN monkeysphere-0.37/src/share/keytrans monkeysphere-0.37-patched/src/share/keytrans
--- monkeysphere-0.37/src/share/keytrans	2014-08-06 19:27:38.000000000 +0200
+++ monkeysphere-0.37-patched/src/share/keytrans	2015-07-31 20:13:36.664514290 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -T
+#!/usr/bin/perl
 
 # keytrans: this is an RSA key translation utility; it is capable of
 # transforming RSA keys (both public keys and secret keys) between
@@ -1069,7 +1069,7 @@ sub packetwalk {
 
 
 for (basename($0)) {
-  if (/^pem2openpgp$/) {
+  if (/pem2openpgp/) {
     my $rsa;
     my $stdin;
 
@@ -1107,7 +1107,7 @@ for (basename($0)) {
 		      }
 		     );
   }
-  elsif (/^openpgp2ssh$/) {
+  elsif (/openpgp2ssh/) {
       my $fpr = shift;
       my $instream;
       open($instream,'-');
@@ -1123,7 +1123,7 @@ for (basename($0)) {
 	die "No matching key found.\n";
       }
   }
-  elsif (/^openpgp2pem$/) {
+  elsif (/openpgp2pem/) {
       my $fpr = shift;
       my $instream;
       open($instream,'-');
@@ -1139,7 +1139,7 @@ for (basename($0)) {
 	die "No matching key found.\n";
       }
   }
-  elsif (/^openpgp2spki$/) {
+  elsif (/openpgp2spki/) {
       my $fpr = shift;
       my $instream;
       open($instream,'-');
@@ -1151,7 +1151,7 @@ for (basename($0)) {
 	die "No matching key found.\n";
       }
   }
-  elsif (/^keytrans$/) {
+  elsif (/keytrans/) {
     # subcommands when keytrans is invoked directly are UNSUPPORTED,
     # UNDOCUMENTED, and WILL NOT BE MAINTAINED.
     my $subcommand = shift;