new file mode 100644
@@ -0,0 +1,45 @@
+From bb08b723fa7bc56439c7bc166cff361628e73453 Mon Sep 17 00:00:00 2001
+Message-Id: <bb08b723fa7bc56439c7bc166cff361628e73453.1659683176.git.stefan@agner.ch>
+From: Stefan Agner <stefan@agner.ch>
+Date: Fri, 5 Aug 2022 08:59:52 +0200
+Subject: [PATCH] Makefile: Make grub_fstest.pp depend on config-util.h
+
+Warning: This commit does not apply to the GRUB git repository. This
+patch applies against the release tarballs.
+
+Upstream status: https://lists.gnu.org/archive/html/grub-devel/2022-08/msg00045.html
+Signed-off-by: Stefan Agner <stefan@agner.ch>
+---
+ Makefile.am | 2 +-
+ Makefile.in | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index bf9c1ba..f08cfc0 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -51,7 +51,7 @@ libgrub_a_init.c: libgrub_a_init.lst $(top_srcdir)/geninit.sh
+ CLEANFILES += libgrub_a_init.c
+
+ # For grub-fstest
+-grub_fstest.pp: $(grub_fstest_SOURCES)
++grub_fstest.pp: config-util.h $(grub_fstest_SOURCES)
+ $(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(grub_fstest_CPPFLAGS) $(CPPFLAGS) \
+ -D'GRUB_MOD_INIT(x)=@MARKER@x@' $^ > $@ || (rm -f $@; exit 1)
+ CLEANFILES += grub_fstest.pp
+diff --git a/Makefile.in b/Makefile.in
+index 13f2eef..2c1d20b 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -13312,7 +13312,7 @@ libgrub_a_init.c: libgrub_a_init.lst $(top_srcdir)/geninit.sh
+ sh $(top_srcdir)/geninit.sh `cat $<` > $@ || (rm -f $@; exit 1)
+
+ # For grub-fstest
+-grub_fstest.pp: $(grub_fstest_SOURCES)
++grub_fstest.pp: config-util.h $(grub_fstest_SOURCES)
+ $(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(grub_fstest_CPPFLAGS) $(CPPFLAGS) \
+ -D'GRUB_MOD_INIT(x)=@MARKER@x@' $^ > $@ || (rm -f $@; exit 1)
+
+--
+2.37.1
+
Sometimes buildroot fails with: ../grub-core/kern/emu/hostfs.c:20:10: fatal error: config-util.h: No such file or directory 20 | #include <config-util.h> | ^~~~~~~~~~~~~~~ Add a patch which fixes the Makefile to correctly generate config-util.h first. Signed-off-by: Stefan Agner <stefan@agner.ch> --- ...ub_fstest.pp-depend-on-config-util.h.patch | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 boot/grub2/0151-Makefile-Make-grub_fstest.pp-depend-on-config-util.h.patch