diff --git a/absl/crc/internal/cpu_detect.cc b/absl/crc/internal/cpu_detect.cc
index e10c7ac0..339b7cc7 100644
--- a/absl/crc/internal/cpu_detect.cc
+++ b/absl/crc/internal/cpu_detect.cc
@@ -206,6 +206,8 @@ CpuType GetCpuType() {
   }
 }
 
+bool SupportsArmCRC32PMULL() { return false; }
+
 #elif defined(__aarch64__) && defined(__linux__)
 
 #define ABSL_INTERNAL_AARCH64_ID_REG_READ(id, val) \
@@ -240,6 +242,8 @@ bool SupportsArmCRC32PMULL() {
 
 CpuType GetCpuType() { return CpuType::kUnknown; }
 
+bool SupportsArmCRC32PMULL() { return false; }
+
 #endif
 
 }  // namespace crc_internal
diff --git a/absl/crc/internal/cpu_detect.h b/absl/crc/internal/cpu_detect.h
index 54cb328a..6054f696 100644
--- a/absl/crc/internal/cpu_detect.h
+++ b/absl/crc/internal/cpu_detect.h
@@ -43,14 +43,12 @@ enum class CpuType {
 // the host CPU is of unknown type, or if detection otherwise fails.
 CpuType GetCpuType();
 
-#if defined(__aarch64__)
 // Returns whether the host CPU supports the CPU features needed for our
 // accelerated implementations. The CpuTypes enumerated above apart from
 // kUnknown support the required features. On unknown CPUs, we can use
 // this to see if it's safe to use hardware acceleration, though without any
 // tuning.
 bool SupportsArmCRC32PMULL();
-#endif
 
 }  // namespace crc_internal
 ABSL_NAMESPACE_END