Updated ShredOS to Buildroot 2025.11, kernel 6.18.0

Makefile

@@ -92,9 +92,9 @@ all:
 .PHONY: all
 
 # Set and export the version string
-export BR2_VERSION := 2024.11
+export BR2_VERSION := 2025.11
 # Actual time the release is cut (for reproducible builds)
-BR2_VERSION_EPOCH = 1733653000
+BR2_VERSION_EPOCH = 1765493000
 
 # Save running make version since it's clobbered by the make package
 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
@@ -353,7 +353,7 @@ export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
 
 # When adding a new host gcc version in Config.in,
 # update the HOSTCC_MAX_VERSION variable:
-HOSTCC_MAX_VERSION := 11
+HOSTCC_MAX_VERSION := 15
 
 HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
 	sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
@@ -407,27 +407,28 @@ ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 # Hide troublesome environment variables from sub processes
 #
 ################################################################################
-unexport CROSS_COMPILE
+unexport AR
 unexport ARCH
 unexport CC
-unexport LD
-unexport AR
-unexport CXX
-unexport CPP
-unexport RANLIB
 unexport CFLAGS
-unexport CXXFLAGS
-unexport GREP_OPTIONS
-unexport TAR_OPTIONS
 unexport CONFIG_SITE
-unexport QMAKESPEC
-unexport TERMINFO
+unexport CPP
+unexport CROSS_COMPILE
+unexport CXX
+unexport CXXFLAGS
+unexport DEVICE_TREE
+unexport GCC_COLORS
+unexport GREP_OPTIONS
+unexport LD
 unexport MACHINE
 unexport O
-unexport GCC_COLORS
-unexport PLATFORM
 unexport OS
-unexport DEVICE_TREE
+unexport PLATFORM
+unexport QMAKESPEC
+unexport RANLIB
+unexport TAR_OPTIONS
+unexport TERMINFO
+unexport TOPDIR
 
 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 
@@ -780,19 +781,12 @@ endif
 
 # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
 # counterparts are appropriately setup as symlinks ones to the others.
-ifeq ($(BR2_ROOTFS_MERGED_USR),y)
-
-	$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
-		@$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
-		$(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
-		test -n "$$not_merged_dirs" && { \
-			echo "ERROR: The overlay in $(d) is not" \
-				"using a merged /usr for the following directories:" \
-				$$not_merged_dirs; \
-			exit 1; \
-		} || true$(sep))
-
-endif # merged /usr
+	@$(call MESSAGE,"Sanity check in overlays $(call qstrip,$(BR2_ROOTFS_OVERLAY))")
+	support/scripts/check-merged \
+		-t overlay \
+		$(if $(BR2_ROOTFS_MERGED_USR),-u) \
+		$(if $(BR2_ROOTFS_MERGED_BIN),-b) \
+		$(call qstrip,$(BR2_ROOTFS_OVERLAY))
 
 	$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 		@$(call MESSAGE,"Copying overlay $(d)")$(sep) \
@@ -1218,17 +1212,17 @@ help:
 # $(2): br2-external name, empty for bundled
 define list-defconfigs
 	@first=true; \
-	for defconfig in $(1)/configs/*_defconfig; do \
+	for defconfig in $$([ -d $(1)/configs ] && find $(1)/configs -name '*_defconfig' |sort); do \
 		[ -f "$${defconfig}" ] || continue; \
 		if $${first}; then \
 			if [ "$(2)" ]; then \
-				printf 'External configs in "$(call qstrip,$(2))":\n'; \
+				printf 'External configs in "%s":\n' "$(call qstrip,$(2))"; \
 			else \
 				printf "Built-in configs:\n"; \
 			fi; \
 			first=false; \
 		fi; \
-		defconfig="$${defconfig##*/}"; \
+		defconfig="$${defconfig#$(1)/configs/}"; \
 		printf "  %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
 	done; \
 	$${first} || printf "\n"
@@ -1249,10 +1243,12 @@ release: OUT = buildroot-$(BR2_VERSION)
 # documentation to the git output
 release:
 	git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
-	$(MAKE) O=$(OUT) manual-html manual-text manual-pdf
+	SOURCE_DATE_EPOCH=$$(git log -1 --format=%at 2> /dev/null) \
+		$(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 	$(MAKE) O=$(OUT) distclean
-	tar rf $(OUT).tar $(OUT)
-	gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
+	tar rf $(OUT).tar --owner=0 --group=0 \
+		--mtime="$$(git log -1 --pretty=format:%ci)" $(OUT)
+	gzip -9 -n -c < $(OUT).tar > $(OUT).tar.gz
 	xz -9 -c < $(OUT).tar > $(OUT).tar.xz
 	rm -rf $(OUT) $(OUT).tar