linux4.9: update to 4.9.247.

build reproducibly

srcpkgs/linux4.9/template

@@ -1,6 +1,6 @@
 # Template file for 'linux4.9'
 pkgname=linux4.9
-version=4.9.243
+version=4.9.247
 revision=1
 wrksrc="linux-${version}"
 short_desc="Linux kernel and modules (${version%.*} series)"
@@ -8,7 +8,7 @@ maintainer="Orphaned <orphan@voidlinux.org>"
 license="GPL-2.0-only"
 homepage="https://www.kernel.org"
 distfiles="https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-${version}.tar.xz"
-checksum=d3aa189ca7fcc6e52d6c0333a0d7acd8789e9a492b32dbf9476e926ffaa73984
+checksum=f73aeb0046a94c6cedcc3edc07d5609f1fc64a38c445983a68bf5d84f56acfd6
 python_version=2 #unverified
 patch_args="-Np1"
 
@@ -41,6 +41,11 @@ mutable_files="
  /usr/lib/modules/${_kernver}/modules.alias.bin
  /usr/lib/modules/${_kernver}/modules.devname"
 
+# reproducible build
+export KBUILD_BUILD_TIMESTAMP=${SOURCE_DATE_EPOCH:-0}
+export KBUILD_BUILD_USER=voidlinux
+export KBUILD_BUILD_HOST=voidlinux
+
 do_configure() {
 	# If there's a file called <arch>-dotconfig, use it to
 	# configure the kernel; otherwise use arch defaults and all stuff