diff --git a/src/ltpf_arm.h b/src/ltpf_arm.h
index 631bc12..2c85ee9 100644
--- a/src/ltpf_arm.h
+++ b/src/ltpf_arm.h
@@ -16,7 +16,7 @@
  *
  ******************************************************************************/
 
-#if __ARM_FEATURE_SIMD32
+#if __ARM_FEATURE_SIMD32 || defined(TEST_ARM)
 
 #ifndef TEST_ARM
 
diff --git a/src/ltpf_neon.h b/src/ltpf_neon.h
index cd27c20..eb1e7d8 100644
--- a/src/ltpf_neon.h
+++ b/src/ltpf_neon.h
@@ -16,7 +16,8 @@
  *
  ******************************************************************************/
 
-#if __ARM_NEON && __ARM_ARCH_ISA_A64
+#if __ARM_NEON && __ARM_ARCH_ISA_A64 && \
+        !defined(TEST_ARM) || defined(TEST_NEON)
 
 #ifndef TEST_NEON
 #include <arm_neon.h>
diff --git a/src/mdct_neon.h b/src/mdct_neon.h
index 4088212..a970d4a 100644
--- a/src/mdct_neon.h
+++ b/src/mdct_neon.h
@@ -16,7 +16,8 @@
  *
  ******************************************************************************/
 
-#if __ARM_NEON && __ARM_ARCH_ISA_A64
+#if __ARM_NEON && __ARM_ARCH_ISA_A64 && \
+        !defined(TEST_ARM) || defined(TEST_NEON)
 
 #ifndef TEST_NEON
 #include <arm_neon.h>
diff --git a/test/arm/simd32.h b/test/arm/simd32.h
index fd17f71..ae002f4 100644
--- a/test/arm/simd32.h
+++ b/test/arm/simd32.h
@@ -20,8 +20,14 @@
 
 #include <arm_acle.h>
 
+static inline int16x2_t __pkhbt(int16x2_t a, int16x2_t b)
+{
+    int16x2_t r;
+    __asm("pkhbt %0, %1, %2" : "=r" (r) : "r" (a), "r" (b));
+    return r;
+}
+
 #else
-#define __ARM_FEATURE_SIMD32 1
 
 #include <stdint.h>
 
diff --git a/test/neon/neon.h b/test/neon/neon.h
index 4fbf2be..aaca818 100644
--- a/test/neon/neon.h
+++ b/test/neon/neon.h
@@ -16,13 +16,11 @@
  *
  ******************************************************************************/
 
-#if __ARM_NEON
+#if __ARM_NEON && __ARM_ARCH_ISA_A64
 
 #include <arm_neon.h>
 
 #else
-#define __ARM_NEON 1
-#define __ARM_ARCH_ISA_A64 1
 
 #include <stdint.h>