[PATCH 1/4] sandbox: make CC_HAS_LINUX_I386_SUPPORT depend on GCC

[Ahmad Fatoum]

CC_HAS_LINUX_I386_SUPPORT enables build for 32-bit with a 64-bit GCC
toolchain. This seems not to work correctly on clang:

  CC      arch/sandbox/os/common.o
  In file included from arch/sandbox/os/common.c:23:
  In file included from /usr/lib/llvm-16/lib/clang/16/include/limits.h:21:
  /usr/include/limits.h:26:10: fatal error:
                               'bits/libc-header-start.h' file not found
  #include <bits/libc-header-start.h>

So disable it for now.

Fixes: f41c4d7c5649 ("Makefile: add LLVM/clang support")
Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 arch/sandbox/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sandbox/Kconfig b/arch/sandbox/Kconfig
index 0b6cc75098be..c1a51d4f021d 100644
--- a/arch/sandbox/Kconfig
+++ b/arch/sandbox/Kconfig
@@ -40,6 +40,7 @@ config CC_IS_64BIT
 
 config CC_HAS_LINUX_I386_SUPPORT
 	def_bool $(cc-option,-m32) && $(ld-option,-m elf_i386)
+	depends on CC_IS_GCC
 
 config 64BIT
 	bool
-- 
2.39.5