[Buildroot] [PATCH 2/2] package/systemd: bump linux-headers dependency to 4.14

[Romain Naour]

The recent update to systemd v254 requires a toolchain w/ linux headers
>= 4.14 to provide LOOP_SET_BLOCK_SIZE [1] (added in systemd v253 [2]).

Note:
Buildroot already warn the user if a toolchain w/ linux headers < 4.15
is used while enabling systemd as init system [3]. It was matter of
time before problem occurs.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=89e4fdecb51cf5535867026274bc97de9480ade5
[2] https://github.com/systemd/systemd/commit/1163ddb386ef46f63942171e6eab0ca64eb818e4
[3] 9a095643b4dd34eb7acb69662aa64fa945f4b542

Signed-off-by: Romain Naour <romain.naour at gmail.com>
---
 package/systemd/Config.in | 7 +++----
 system/Config.in          | 6 +++---
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/package/systemd/Config.in b/package/systemd/Config.in
index 174ee77b29..a3e424cb4c 100644
--- a/package/systemd/Config.in
+++ b/package/systemd/Config.in
@@ -22,7 +22,7 @@ menuconfig BR2_PACKAGE_SYSTEMD
 	depends on !BR2_STATIC_LIBS # kmod
 	depends on BR2_TOOLCHAIN_USES_GLIBC
 	depends on BR2_TOOLCHAIN_HAS_SSP
-	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 # LOOP_SET_BLOCK_SIZE
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
 	depends on BR2_HOST_GCC_AT_LEAST_5 # host-systemd
 	select BR2_PACKAGE_HAS_UDEV
@@ -237,7 +237,6 @@ config BR2_PACKAGE_SYSTEMD_HOMED
 	depends on BR2_USE_MMU # cryptsetup -> lvm2
 	depends on !BR2_STATIC_LIBS # cryptsetup -> lvm2
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # cryptsetup -> json-c
-	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # fscrypt_key
 	select BR2_PACKAGE_CRYPTSETUP
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_OPENSSL_FORCE_LIBOPENSSL
@@ -248,11 +247,11 @@ config BR2_PACKAGE_SYSTEMD_HOMED
 
 	  https://www.freedesktop.org/software/systemd/man/systemd-homed.service.html
 
-comment "homed support needs a toolchain w/ threads, dynamic library, kernel headers >= 4.12"
+comment "homed support needs a toolchain w/ threads, dynamic library"
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
-		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
+		BR2_STATIC_LIBS
 
 config BR2_PACKAGE_SYSTEMD_HOSTNAMED
 	bool "enable hostname daemon"
diff --git a/system/Config.in b/system/Config.in
index 1ca7690ea3..24798dc068 100644
--- a/system/Config.in
+++ b/system/Config.in
@@ -124,19 +124,19 @@ config BR2_INIT_SYSTEMD
 	depends on BR2_TOOLCHAIN_USES_GLIBC
 	depends on BR2_TOOLCHAIN_HAS_SSP
 	depends on BR2_TOOLCHAIN_HAS_THREADS
-	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
 	depends on BR2_HOST_GCC_AT_LEAST_5
 	select BR2_ROOTFS_MERGED_USR
 	select BR2_PACKAGE_SYSTEMD
 	select BR2_PACKAGE_SKELETON_INIT_SYSTEMD if BR2_ROOTFS_SKELETON_DEFAULT
 
-comment "systemd needs a glibc toolchain w/ SSP, headers >= 3.15, host and target gcc >= 5"
+comment "systemd needs a glibc toolchain w/ SSP, headers >= 4.14, host and target gcc >= 5"
 	depends on BR2_PACKAGE_SYSTEMD_ARCH_SUPPORTS
 	depends on BR2_USE_MMU
 	depends on !BR2_TOOLCHAIN_USES_GLIBC || \
 		!BR2_TOOLCHAIN_HAS_SSP || \
-		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15 || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_14 || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \
 		!BR2_HOST_GCC_AT_LEAST_5
 
-- 
2.41.0