diff --git a/yocto-poky/meta/recipes-bsp/grub/grub2.inc b/yocto-poky/meta/recipes-bsp/grub/grub2.inc
index fe2407c..146dde6 100644
--- a/yocto-poky/meta/recipes-bsp/grub/grub2.inc
+++ b/yocto-poky/meta/recipes-bsp/grub/grub2.inc
@@ -27,10 +27,12 @@
            file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
            file://0001-parse_dhcp_vendor-Add-missing-const-qualifiers.patch \
            file://grub2-fix-initrd-size-bug.patch \
-           file://CVE-2015-8370.patch \
+           file://0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch \
+           file://0001-Remove-direct-_llseek-code-and-require-long-filesyst.patch \
+           file://fix-texinfo.patch \
             "
 
-DEPENDS = "flex-native bison-native xz"
+DEPENDS = "flex-native bison-native"
 
 SRC_URI[md5sum] = "e927540b6eda8b024fb0391eeaa4091c"
 SRC_URI[sha256sum] = "65b39a0558f8c802209c574f4d02ca263a804e8a564bc6caf1cd0fd3b3cc11e3"
@@ -43,10 +45,25 @@
 PACKAGECONFIG[grub-mount] = "--enable-grub-mount,--disable-grub-mount,fuse"
 PACKAGECONFIG[device-mapper] = "--enable-device-mapper,--disable-device-mapper,lvm2"
 
+# grub2 creates its own set of -nostdinc / -isystem / -ffreestanding CFLAGS and
+# OE's default BUILD_CFLAGS (assigned to CFLAGS for native builds) etc, conflict
+# with that. Note that since BUILD_CFLAGS etc are not used by grub2 target
+# builds, it's safe to clear them unconditionally for both target and native.
+BUILD_CPPFLAGS = ""
+BUILD_CFLAGS = ""
+BUILD_CXXFLAGS = ""
+BUILD_LDFLAGS = ""
+
+do_configure_prepend() {
+	# The grub2 configure script uses variables such as TARGET_CFLAGS etc
+	# for its own purposes. Remove the OE versions from the environment to
+	# avoid conflicts.
+	unset TARGET_CPPFLAGS TARGET_CFLAGS TARGET_CXXFLAGS TARGET_LDFLAGS
+}
+
 # grub and grub-efi's sysroot/${datadir}/grub/grub-mkconfig_lib are
 # conflicted, remove it since no one uses it.
 SYSROOT_PREPROCESS_FUNCS_class-target += "remove_sysroot_mkconfig_lib"
 remove_sysroot_mkconfig_lib() {
     rm -r "${SYSROOT_DESTDIR}${datadir}/grub/grub-mkconfig_lib"
 }
-