nix: update to 1.11.16.

Closes #10213.

srcpkgs/nix/template

@@ -1,7 +1,7 @@
 # Template file for 'nix'
 pkgname=nix
-version=1.11.4
-revision=8
+version=1.11.16
+revision=1
 build_style=gnu-configure
 # Use /nix/var as suggested by the official Manual.
 configure_args="--localstatedir=/nix/var"
@@ -9,7 +9,7 @@ depends="curl perl-WWW-Curl perl-DBD-SQLite"
 hostmakedepends="automake libtool pkg-config flex ${depends}"
 # Extra run-time dependencies.
 makedepends="bzip2-devel gc-devel libcurl-devel liblzma-devel libressl-devel
- libsodium-devel pkg-config sqlite-devel"
+ libsodium-devel pkg-config sqlite-devel libseccomp-devel"
 shlib_requires="libperl.so.5.26"
 # Default configuration file.
 conf_files="/etc/nix/nix.conf"
@@ -37,10 +37,9 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
 license="LGPL-2.1"
 homepage="http://nixos.org/nix/"
 distfiles="http://nixos.org/releases/nix/nix-${version}/nix-${version}.tar.xz"
-checksum=937779ed2efaa3dec210250635401980acb99a6fea6d7374fbaea78231b36d34
+checksum=0ca5782fc37d62238d13a620a7b4bff6a200bab1bd63003709249a776162357c
 
 pre_configure() {
-	sed -i 's/ucontext/ucontext_t/g' src/libmain/stack.cc
 	sed -i '/^CFLAGS=/d;/^CXXFLAGS=/d' configure
 	sed -i 's/site_perl.*/vendor_perl/g' configure
 	echo "GLOBAL_LDFLAGS += $LDFLAGS" >>mk/lib.mk

srcpkgs/nix/update

@@ -0,0 +1,2 @@
+site='https://nixos.org/releases/nix/'
+pattern='nix-\K[\d.]+'