[PATCH 15/30] kbuild: force 16-bit wchar_t treewide

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-fshort-wchar ensures L"" expands to code units of 16-bit each. We
already enforce this on x86, but as a small step towards ARM and
RISC-V EFI support in barebox, enable it globally. We already treat
wchar_t as 16-bit everywhere where it's used (It's typedef'ed in
<linux/nls.h> and <linux/stddef.h>.

Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
 Makefile          | 2 +-
 arch/x86/Makefile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 77edecd1f72f..2e4c60d55ab2 100644
--- a/Makefile
+++ b/Makefile
@@ -440,7 +440,7 @@ LINUXINCLUDE    := -Iinclude -I$(srctree)/dts/include \
 KBUILD_CPPFLAGS        := -D__KERNEL__ -D__BAREBOX__ $(LINUXINCLUDE) -fno-builtin -ffreestanding
 
 KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
-		   -fno-strict-aliasing -fno-common \
+		   -fno-strict-aliasing -fno-common -fshort-wchar \
                    -Werror=implicit-function-declaration -Werror=implicit-int \
                    -Os -pipe -Wmissing-prototypes -std=gnu89
 KBUILD_AFLAGS          := -D__ASSEMBLY__
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 53cbd5088117..a0ce8c17f181 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -5,7 +5,7 @@ KBUILD_CPPFLAGS += -D__X86__
 TEXT_BASE = $(CONFIG_TEXT_BASE)
 
 machine-y := efi
-KBUILD_CFLAGS += -fpic -fshort-wchar -mno-sse -mno-mmx
+KBUILD_CFLAGS += -fpic -mno-sse -mno-mmx
 ifeq ($(CONFIG_X86_32),y)
 	TARGET = efi-app-ia32
 else
-- 
2.30.2


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