Prepare support for kernel 6.13

Author: rtissera

package/linux-headers/Config.in.host

@@ -53,6 +53,10 @@ config BR2_KERNEL_HEADERS_6_12
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_12
 	select BR2_KERNEL_HEADERS_LATEST
 
+config BR2_KERNEL_HEADERS_6_13
+	bool "Linux 6.13.x kernel headers"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_13
+
 config BR2_KERNEL_HEADERS_VERSION
 	bool "Manually specified Linux version"
 	help
@@ -129,6 +133,10 @@ choice
 	  If your kernel headers are more recent than the latest version
 	  in the choice, then select the latest version.
 
+config BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_13
+	bool "6.13.x or later"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_13
+
 config BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_12
 	bool "6.12.x or later"
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_12

toolchain/Config.in

@@ -666,6 +666,10 @@ config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_12
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_11
 	select BR2_TOOLCHAIN_HEADERS_LATEST
 
+config BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_13
+	bool
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_12
+
 # This should be selected by the latest version, above, to indicate that
 # Buildroot does not know of more recent headers than the ones selected.
 # This allows using toolchains with headers more recent than Buildroot
@@ -677,6 +681,7 @@ config BR2_TOOLCHAIN_HEADERS_LATEST
 # stops affecting a value on the first matching default.
 config BR2_TOOLCHAIN_HEADERS_AT_LEAST
 	string
+	default "6.13" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_13
 	default "6.12" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_12
 	default "6.11" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_11
 	default "6.10" if BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_10