moca: Fix configure failure

lang/moca/Portfile

@@ -1,3 +1,5 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+
 PortSystem 1.0
 
 name                moca
@@ -16,13 +18,14 @@ master_sites        http://moca.inria.fr/archive/
 checksums           rmd160  84384035883fe2f80f68024117ccf60c9697cb06 \
                     sha256  1d5fecd014890d5fcf1921a0145468a910ca7b87498fd12b9b670cb592ae74c2
 
-patchfiles          patch-config-Makefile.config.in.diff
-
 extract.suffix      .tgz
 
 depends_build       port:ocaml
 depends_run         port:ocaml
 
+patchfiles          patch-config-Makefile.config.in.diff \
+                    patch-configure.diff
+
 configure.pre_args  "${destroot}${prefix}"
 
 use_parallel_build  no

lang/moca/files/patch-configure.diff

@@ -0,0 +1,22 @@
+Fix configure failure on recent macOS:
+sed: RE error: illegal byte sequence
+--- Mk/configure.orig	2011-02-21 13:14:35.000000000 -0600
++++ Mk/configure	2019-11-28 02:31:42.000000000 -0600
+@@ -29,6 +29,7 @@
+ echo "# The editable source of this file is in $GENERATED.in" >> $GENERATED
+ echo "#" >> $GENERATED
+
++LC_CTYPE=ISO8859-1 \
+ sed -e "s|SRCROOTDIR=.*|SRCROOTDIR=$SRCROOTDIR|" \
+ $GENERATED.in >> $GENERATED
+
+--- config/configure.orig	2012-06-04 08:01:22.000000000 -0500
++++ config/configure	2019-11-28 02:31:41.000000000 -0600
+@@ -47,6 +47,7 @@
+ echo "# The editable source of this file is in $GENERATED.in" >> $GENERATED
+ echo "#" >> $GENERATED
+
++LC_CTYPE=ISO8859-1 \
+ sed -e "s|PREFIX=.*|PREFIX=$PREFIXDIR|" \
+     -e "s|SRCROOTDIR=.*|SRCROOTDIR=$SRCROOTDIR|" \
+  $GENERATED.in >> $GENERATED