unison: update to 2.51.2.

Closes #13316.

Signed-off-by: Enno Boland <gottox@voidlinux.eu>

srcpkgs/unison/patches/musl.patch

@@ -1,5 +1,5 @@
---- fsmonitor/linux/inotify_stubs.c
-+++ fsmonitor/linux/inotify_stubs.c
+--- src/fsmonitor/linux/inotify_stubs.c
++++ src/fsmonitor/linux/inotify_stubs.c
 @@ -35,7 +35,7 @@
  #define GLIBC_SUPPORT_INOTIFY 0
  #endif

srcpkgs/unison/template

@@ -1,22 +1,21 @@
 # Template file for 'unison'
 pkgname="unison"
-version=2.48.4
-revision=4
+version=2.51.2
+revision=1
+hostmakedepends="ocaml"
 short_desc="A file-synchronization tool"
 maintainer="allan <mail@may.mooo.com>"
 license="GPL-3"
 homepage="http://www.cis.upenn.edu/~bcpierce/unison/"
-distfiles="http://www.seas.upenn.edu/~bcpierce/unison/download/releases/stable/${pkgname}-${version}.tar.gz"
-checksum=30aa53cd671d673580104f04be3cf81ac1e20a2e8baaf7274498739d59e99de8
-hostmakedepends="ocaml"
+distfiles="https://github.com/bcpierce00/unison/archive/v${version}.tar.gz"
+checksum=a2efcbeab651be6df69cc9b253011a07955ecb91fb407a219719451197849d5e
 nocross=yes
-wrksrc="src"
 export OCAMLPARAM="safe-string=0,_"
 
 do_build() {
 	CFLAGS= make UISTYLE=text DEBUGGING=false THREADS=true
 }
 do_install() {
-	vbin unison
-	vbin unison-fsmonitor
+	vbin src/unison
+	vbin src/unison-fsmonitor
 }