system/nvidia-legacy470-kernel: Update patch for current.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/nvidia-legacy470-kernel/README

@@ -15,3 +15,6 @@ xorg.conf.
 The xf86-video-nouveau-blacklist package from /extra is required.
 
 The Nvidia 470.xx series will be supported through December 2024.
+
+NOTE: To build in -current with gcc14 against the new 6.9.x kernel,
+pass "CURRENT=yes" to the script.

system/nvidia-legacy470-kernel/nvidia-470.239.06-gcc14.patch

@@ -0,0 +1,29 @@
+diff --git a/conftest.sh b/conftest.sh
+index 6e6da83..678b79c 100755
+--- a/conftest.sh
++++ b/conftest.sh
+@@ -101,7 +101,8 @@ test_header_presence() {
+ build_cflags() {
+     BASE_CFLAGS="-O2 -D__KERNEL__ \
+ -DKBUILD_BASENAME=\"#conftest$$\" -DKBUILD_MODNAME=\"#conftest$$\" \
+--nostdinc -isystem $ISYSTEM"
++-nostdinc -isystem $ISYSTEM -fshort-wchar  \
++-Wno-implicit-function-declaration -Wno-strict-prototypes"
+ 
+     if [ "$OUTPUT" != "$SOURCES" ]; then
+         OUTPUT_CFLAGS="-I$OUTPUT/include2 -I$OUTPUT/include"
+@@ -4592,8 +4592,13 @@ compile_test() {
+             #
+             CODE="
+             #include <drm/drm_gem.h>
++            #if defined(NV_LINUX_IOSYS_MAP_H_PRESENT)
++            typedef struct iosys_map nv_sysio_map_t;
++            #else
++            typedef struct dma_buf_map nv_sysio_map_t;
++            #endif
+             int conftest_drm_gem_object_vmap_has_map_arg(
+-                    struct drm_gem_object *obj, struct dma_buf_map *map) {
++                    struct drm_gem_object *obj, nv_sysio_map_t *map) {
+                 return obj->funcs->vmap(obj, map);
+             }"
+ 

system/nvidia-legacy470-kernel/nvidia-legacy470-kernel.SlackBuild

@@ -32,7 +32,7 @@ cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=nvidia-legacy470-kernel
 VERSION=${VERSION:-470.239.06}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -89,6 +89,11 @@ find -L . \
 
   unset ARCH
 
+# Patch for gcc-14 in current:
+if [ "${CURRENT:-no}" = "yes" ]; then
+  patch -p1 < $CWD/nvidia-470.239.06-gcc14.patch
+fi
+
 # CC=${CC:-gcc} suppresses an otherwise harmless "compiler mismatch"
 # message.  If you custom-build your kernel with clang,
 # then pass CC=clang to this script.