Compile librem-ec for user chosen kernel

sys-kernel/librem-ec-acpi/librem-ec-acpi-0.9.1.ebuild

@@ -17,6 +17,15 @@ S="${WORKDIR}/librem-ec-acpi-dkms-v${PV}/"
 MODULE_NAMES="librem_ec_acpi(librem:${S}:${S})"
 BUILD_TARGETS="clean all"
 
+src_prepare() {
+	default
+
+	# Makefile hardcoded to point at  running kernel
+	# but we want the user-chosen kernel.
+	linux-info_get_any_version
+	sed -i "s/\$(shell uname -r)/${KV_FULL}/" Makefile \
+		|| die "could not set kernel version in makefile"
+}
 pkg_setup() {
 	linux-mod_pkg_setup
 	BUILD_PARAMS="KERNELDIR=${KV_DIR}"