liblo: update to 0.31

* add revision and remove platforms line
* use HTTPS for homepage
* fix macOS 11+ libtool bug

audio/liblo/Portfile

@@ -4,19 +4,22 @@ PortSystem 1.0
 
 name            liblo
 epoch           1
-version         0.28
+version         0.31
+revision        0
 categories      audio
-platforms       darwin
 maintainers     nomaintainer
 license         LGPL-2.1
 description     Lightweight Open Sound Control implementation.
 long_description liblo is an implementation of the Open Sound Control \
                 protocol for POSIX systems.
-homepage        http://liblo.sourceforge.net/
+homepage        https://liblo.sourceforge.net/
 master_sites    sourceforge:project/liblo/liblo/${version}
 
-checksums       rmd160  473806e0ca5d383ee07d657103f43c7f90ff7b15 \
-                sha256  da94a9b67b93625354dd89ff7fe31e5297fc9400b6eaf7378c82ee1caf7db909
+checksums       rmd160  44efae4da54fdb833c53bda5b07d10ef4a4be0dd \
+                sha256  2b4f446e1220dcd624ecd8405248b08b7601e9a0d87a0b94730c2907dbccc750 \
+                size    643928
+
+patchfiles      dynamic_lookup-11.patch
 
 # Does not have dependencies, so does not need -I flag, and -I flag causes configure error with clang
 # https://sourceforge.net/p/liblo/bugs/34/

audio/liblo/files/dynamic_lookup-11.patch

@@ -0,0 +1,25 @@
+Recognize macOS 11 and later.
+https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44605
+--- configure.orig
++++ configure
+@@ -8004,16 +8004,11 @@
+       _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+     darwin1.*)
+       _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+-    darwin*) # darwin 5.x on
+-      # if running on 10.5 or later, the deployment target defaults
+-      # to the OS version, if on x86, and 10.4, the deployment
+-      # target defaults to 10.4. Don't you love it?
+-      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+-	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+-	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+-	10.[012][,.]*)
++    darwin*)
++      case ${MACOSX_DEPLOYMENT_TARGET},$host in
++	10.[012],*|,*powerpc*)
+ 	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+-	10.*)
++	*)
+ 	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+       esac
+     ;;