[Buildroot] [git commit branch/2022.02.x] boot/grub2: fix build race condition

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=072a275a9aeb2a0a24507c2acec2f2fdb3788001
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2022.02.x

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 at agner.ch>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 ...ke-grub_fstest.pp-depend-on-config-util.h.patch | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/boot/grub2/0151-Makefile-Make-grub_fstest.pp-depend-on-config-util.h.patch b/boot/grub2/0151-Makefile-Make-grub_fstest.pp-depend-on-config-util.h.patch
new file mode 100644
index 0000000000..ea8787de7a
--- /dev/null
+++ b/boot/grub2/0151-Makefile-Make-grub_fstest.pp-depend-on-config-util.h.patch
@@ -0,0 +1,45 @@
+From bb08b723fa7bc56439c7bc166cff361628e73453 Mon Sep 17 00:00:00 2001
+Message-Id: <bb08b723fa7bc56439c7bc166cff361628e73453.1659683176.git.stefan at agner.ch>
+From: Stefan Agner <stefan at 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 at 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 at 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 at x@' $^ > $@ || (rm -f $@; exit 1)
+ 
+-- 
+2.37.1
+