Index: libc/src/__support/macros/attributes.h
===================================================================
--- libc/src/__support/macros/attributes.h
+++ libc/src/__support/macros/attributes.h
@@ -20,6 +20,7 @@
 #include "properties/architectures.h"
 
 #define LIBC_INLINE inline
+#define LIBC_INLINE_VAR inline
 #define LIBC_INLINE_ASM __asm__ __volatile__
 #define LIBC_UNUSED __attribute__((unused))
 
Index: libc/src/string/memory_utils/op_x86.h
===================================================================
--- libc/src/string/memory_utils/op_x86.h
+++ libc/src/string/memory_utils/op_x86.h
@@ -40,13 +40,12 @@
 namespace __llvm_libc::x86 {
 
 // A set of constants to check compile time features.
-LIBC_INLINE static constexpr bool kSse2 = LLVM_LIBC_IS_DEFINED(__SSE2__);
-LIBC_INLINE static constexpr bool kSse41 = LLVM_LIBC_IS_DEFINED(__SSE4_1__);
-LIBC_INLINE static constexpr bool kAvx = LLVM_LIBC_IS_DEFINED(__AVX__);
-LIBC_INLINE static constexpr bool kAvx2 = LLVM_LIBC_IS_DEFINED(__AVX2__);
-LIBC_INLINE static constexpr bool kAvx512F = LLVM_LIBC_IS_DEFINED(__AVX512F__);
-LIBC_INLINE static constexpr bool kAvx512BW =
-    LLVM_LIBC_IS_DEFINED(__AVX512BW__);
+LIBC_INLINE_VAR constexpr bool kSse2 = LLVM_LIBC_IS_DEFINED(__SSE2__);
+LIBC_INLINE_VAR constexpr bool kSse41 = LLVM_LIBC_IS_DEFINED(__SSE4_1__);
+LIBC_INLINE_VAR constexpr bool kAvx = LLVM_LIBC_IS_DEFINED(__AVX__);
+LIBC_INLINE_VAR constexpr bool kAvx2 = LLVM_LIBC_IS_DEFINED(__AVX2__);
+LIBC_INLINE_VAR constexpr bool kAvx512F = LLVM_LIBC_IS_DEFINED(__AVX512F__);
+LIBC_INLINE_VAR constexpr bool kAvx512BW = LLVM_LIBC_IS_DEFINED(__AVX512BW__);
 
 ///////////////////////////////////////////////////////////////////////////////
 // Memcpy repmovsb implementation