This pull request contains the following bug fix for UML:

- Build regression with older gcc versions
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Merge tag 'uml-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux

Pull UML fix from Richard Weinberger:

 - Build regression fix for older gcc versions

* tag 'uml-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
  um: Only disable SSE on clang to work around old GCC bugs

arch/x86/Makefile.um

@@ -3,9 +3,14 @@ core-y += arch/x86/crypto/
 
 #
 # Disable SSE and other FP/SIMD instructions to match normal x86
+# This is required to work around issues in older LLVM versions, but breaks
+# GCC versions < 11. See:
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652
 #
+ifeq ($(CONFIG_CC_IS_CLANG),y)
 KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx
 KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2
+endif
 
 ifeq ($(CONFIG_X86_32),y)
 START := 0x8048000