diff --git a/GNUmakefile b/GNUmakefile
index 12b2edf5..f0dc5441 100755
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -53,8 +53,6 @@ IS_SPARC64 := $(shell echo "$(HOSTX)" | $(GREP) -i -c -E 'sun|sparc64')
 IS_ARM32 := $(shell echo "$(HOSTX)" | $(GREP) -i -c -E 'arm|armhf|arm7l|eabihf')
 IS_ARMV8 := $(shell echo "$(HOSTX)" | $(GREP) -i -c -E 'aarch32|aarch64|arm64|armv8')
 
-IS_NEON := $(shell $(CXX) $(CXXFLAGS) -dumpmachine 2>/dev/null | $(GREP) -i -c -E 'armv7|armhf|arm7l|eabihf|armv8|aarch32|aarch64')
-
 # Attempt to determine platform
 SYSTEMX := $(shell $(CXX) $(CXXFLAGS) -dumpmachine 2>/dev/null)
 ifeq ($(SYSTEMX),)
@@ -439,10 +437,10 @@ endif
 #####            ARM A-32, Aach64 and NEON            #####
 ###########################################################
 
-ifneq ($(IS_ARM32)$(IS_ARMV8)$(IS_NEON),000)
+ifneq ($(IS_ARM32)$(IS_ARMV8),00)
 ifeq ($(DETECT_FEATURES),1)
 
-ifeq ($(IS_ARM32)$(IS_NEON),11)
+ifneq ($(IS_ARM32),0)
 
   TPROG = TestPrograms/test_arm_neon.cxx
   TOPT = -march=armv7-a -mfloat-abi=$(FP_ABI) -mfpu=neon
@@ -469,7 +467,7 @@ ifeq ($(IS_ARM32)$(IS_NEON),11)
     CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
   endif
 
-# IS_NEON
+# IS_ARM32
 endif
 
 ifeq ($(IS_ARMV8),1)
@@ -567,7 +565,7 @@ endif
 # DETECT_FEATURES
 endif
 
-# IS_ARM32, IS_ARMV8, IS_NEON
+# IS_ARM32, IS_ARMV8
 endif
 
 ###########################################################
diff --git a/GNUmakefile-cross b/GNUmakefile-cross
index c308c123..664a8447 100755
--- a/GNUmakefile-cross
+++ b/GNUmakefile-cross
@@ -384,7 +384,7 @@ ifeq ($(IS_ARM32),1)
     SM4_FLAG = $(NEON_FLAG)
   else
     NEON_FLAG =
-    CXXFLAGS += -DCRYPTOPP_DISABLE_NEON
+    CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
   endif
 
 # IS_NEON