Merge tag 'kbuild-fixes-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull Kbuild fixes from Masahiro Yamada:

 - Use POSIX-compatible grep options

 - Document git-related tips for reproducible builds

 - Fix a typo in the modpost rule

 - Suppress SIGPIPE error message from gcc-ar and llvm-ar

 - Fix segmentation fault in the menuconfig search

* tag 'kbuild-fixes-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: fix segmentation fault in menuconfig search
  kbuild: fix SIGPIPE error message for AR=gcc-ar and AR=llvm-ar
  kbuild: fix typo in modpost
  Documentation: kbuild: Add description of git for reproducible builds
  kbuild: use POSIX-compatible grep option

diff --combined Makefile
index 28026d1,e9e7eff..226ca8a
--- 1/Makefile
--- 2/Makefile
+++ b/Makefile
@@@ -2,7 -2,7 +2,7 @@@
  VERSION = 6
  PATCHLEVEL = 1
  SUBLEVEL = 0
 -EXTRAVERSION = -rc2
 +EXTRAVERSION = -rc3
  NAME = Hurr durr I'ma ninja sloth
  
  # *DOCUMENTATION*
@@@ -1218,7 -1218,7 +1218,7 @@@ quiet_cmd_ar_vmlinux.a = AR      $
        cmd_ar_vmlinux.a = \
        rm -f $@; \
        $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
-       $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
+       $(AR) mPiT $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt)
  
  targets += vmlinux.a
  vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE