vorbisgain: moved from opt, marked unmaintained

vorbisgain/.footprint

@@ -0,0 +1,7 @@
+drwxr-xr-x	root/root	usr/
+drwxr-xr-x	root/root	usr/bin/
+-rwxr-xr-x	root/root	usr/bin/vorbisgain
+drwxr-xr-x	root/root	usr/share/
+drwxr-xr-x	root/root	usr/share/man/
+drwxr-xr-x	root/root	usr/share/man/man1/
+-rw-r--r--	root/root	usr/share/man/man1/vorbisgain.1.gz

vorbisgain/.signature

@@ -0,0 +1,5 @@
+untrusted comment: verify with /etc/ports/contrib.pub
+RWSagIOpLGJF3wi6ZSdsiseXDb2jc7wjSu553hhCxK79kNG9Kqa3CNrrOxEn7Ea2YPhLzcdAtO35Y3pRTzIHFWTtRoDwohnxggw=
+SHA256 (Pkgfile) = 0ad792855f280dbf3f7054d31e35be6fefc2d93fa583917ebeb72b04aef5df57
+SHA256 (.footprint) = 9283df8b04b6e28f85d5ea132a5fcabbe6d1492bf66884c177817cfc11a610d2
+SHA256 (vorbisgain-0.37.tar.gz) = dd6db051cad972bcac25d47b4a9e40e217bb548a1f16328eddbb4e66613530ec

vorbisgain/Pkgfile

@@ -0,0 +1,20 @@
+# Description: Computes replaygain information for Ogg Vorbis files.
+# URL: https://sjeng.org/vorbisgain.html
+# Maintainer: unmaintained
+# Depends on: libvorbis
+
+name=vorbisgain
+version=0.37
+release=2
+source=(https://sjeng.org/ftp/vorbis/$name-$version.tar.gz)
+
+build() {
+  cd $name-$version
+
+  /bin/sh configure \
+    --prefix=/usr \
+    --mandir=/usr/share/man
+
+  make
+  make DESTDIR=$PKG install
+}