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kbuild: Replace tabs with spaces when followed by conditionals

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This is needed for the future (post make-4.4.1) versions of gnu make.

Starting from https://git.savannah.gnu.org/cgit/make.git/commit/?id=07fcee35f058a876447c8a021f9eb1943f902534
gnu make won't allow conditionals to follow recipe prefix.

For example there is a tab followed by ifeq on line 324 in the root Makefile.
With the new make this conditional causes the following

$ make cpu.o
/home/dgoncharov/src/linux-kbuild/Makefile:2063: *** missing 'endif'.  Stop.
make: *** [Makefile:240: __sub-make] Error 2

This patch replaces tabs followed by conditionals with 8 spaces.

See https://savannah.gnu.org/bugs/?64185 and
https://savannah.gnu.org/bugs/?64259 for details.

Signed-off-by: Dmitry Goncharov <dgoncharov@users.sf.net>
Reported-by: Martin Dorey <martin.dorey@hitachivantara.com>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Dmitry Goncharov 2024-01-28 10:10:39 -05:00 committed by Masahiro Yamada
parent cda5f94e88
commit 82175d1f94
4 changed files with 15 additions and 15 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

12
Makefile
View file

@ -294,15 +294,15 @@ may-sync-config := 1
single-build :=
ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
need-config :=
endif
endif
endif
ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),)
ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),)
ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),)
may-sync-config :=
endif
endif
endif
need-compiler := $(may-sync-config)
@ -323,9 +323,9 @@ endif
# We cannot build single targets and the others at the same time
ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),)
single-build := 1
ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),)
ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),)
mixed-build := 1
endif
endif
endif
# For "make -j clean all", "make -j mrproper defconfig all", etc.

4
arch/m68k/Makefile
View file

@ -15,10 +15,10 @@
KBUILD_DEFCONFIG := multi_defconfig
ifdef cross_compiling
ifeq ($(CROSS_COMPILE),)
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, \
m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
endif
endif
endif
#

4
arch/parisc/Makefile
View file

@ -50,12 +50,12 @@ export CROSS32CC
# Set default cross compiler for kernel build
ifdef cross_compiling
ifeq ($(CROSS_COMPILE),)
ifeq ($(CROSS_COMPILE),)
CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux
CROSS_COMPILE := $(call cc-cross-prefix, \
$(foreach a,$(CC_ARCHES), \
$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
endif
endif
endif
ifdef CONFIG_DYNAMIC_FTRACE

10
arch/x86/Makefile
View file

@ -112,13 +112,13 @@ ifeq ($(CONFIG_X86_32),y)
# temporary until string.h is fixed
KBUILD_CFLAGS += -ffreestanding
ifeq ($(CONFIG_STACKPROTECTOR),y)
ifeq ($(CONFIG_SMP),y)
ifeq ($(CONFIG_STACKPROTECTOR),y)
ifeq ($(CONFIG_SMP),y)
KBUILD_CFLAGS += -mstack-protector-guard-reg=fs -mstack-protector-guard-symbol=__stack_chk_guard
else
else
KBUILD_CFLAGS += -mstack-protector-guard=global
endif
endif
endif
endif
else
BITS := 64
UTS_MACHINE := x86_64