# git rev-parse -q --verify 2d00aee21a5d4966e086d98f9d710afb92fb14e8^{commit}
2d00aee21a5d4966e086d98f9d710afb92fb14e8
already have revision, skipping fetch
# git checkout -q -f -B kisskb 2d00aee21a5d4966e086d98f9d710afb92fb14e8
# git clean -qxdf
# < git log -1
# commit 2d00aee21a5d4966e086d98f9d710afb92fb14e8
# Merge: 126195c972a2 86cdd2fdc4e3
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Oct 5 12:56:59 2019 -0700
# 
#     Merge tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - remove unneeded ar-option and KBUILD_ARFLAGS
#     
#      - remove long-deprecated SUBDIRS
#     
#      - fix modpost to suppress false-positive warnings for UML builds
#     
#      - fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
#     
#      - make setlocalversion work for /bin/sh
#     
#      - make header archive reproducible
#     
#      - fix some Makefiles and documents
#     
#     * tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kheaders: make headers archive reproducible
#       kbuild: update compile-test header list for v5.4-rc2
#       kbuild: two minor updates for Documentation/kbuild/modules.rst
#       scripts/setlocalversion: clear local variable to make it work for sh
#       namespace: fix namespace.pl script to support relative paths
#       video/logo: do not generate unneeded logo C files
#       video/logo: remove unneeded *.o pattern from clean-files
#       integrity: remove pointless subdir-$(CONFIG_...)
#       integrity: remove unneeded, broken attempt to add -fshort-wchar
#       modpost: fix static EXPORT_SYMBOL warnings for UML build
#       kbuild: correct formatting of header in kbuild module docs
#       kbuild: remove SUBDIRS support
#       kbuild: remove ar-option and KBUILD_ARFLAGS
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 2d00aee21a5d4966e086d98f9d710afb92fb14e8
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  defconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
cc1: error: unrecognized command line option '-mtune=zEC12'
cc1: error: unrecognized command line option '-mtune=zEC12'
make[2]: *** [/kisskb/src/scripts/Makefile.build:99: scripts/mod/devicetable-offsets.s] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:266: scripts/mod/empty.o] Error 1
make[1]: *** [/kisskb/src/Makefile:1108: prepare0] Error 2
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-defconfig_s390x
# Build took: 0:00:03.971007