diff -uNr cryptopp/cpu.cpp cryptopp.mod/cpu.cpp
--- cryptopp/cpu.cpp	2021-03-08 03:42:24.000000000 +0000
+++ cryptopp.mod/cpu.cpp	2021-05-03 19:07:55.060824805 +0000
@@ -55,7 +55,7 @@
 // "$ANDROID_NDK_ROOT/sources/android/cpufeatures".
 // setenv-android.sh will copy the header and source file
 // into PWD and the makefile will build it in place.
-#if defined(__ANDROID__)
+#if defined(__ANDROID__) && !defined(__TERMUX__)
 # include "cpu-features.h"
 #endif
 
@@ -822,6 +822,7 @@
 
 inline bool CPU_QueryARMv7()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__arm__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_ARMv7) != 0))
@@ -834,11 +835,13 @@
 	// Apple hardware is ARMv7 or above.
 	return true;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QueryNEON()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_ASIMD) != 0))
@@ -860,11 +863,13 @@
 	// Core feature set for Aarch32 and Aarch64.
 	return true;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QueryCRC32()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_CRC32) != 0))
@@ -884,11 +889,13 @@
 	if (IsAppleMachineARMv82())
 		return true;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QueryPMULL()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_PMULL) != 0))
@@ -908,11 +915,13 @@
 	if (IsAppleMachineARMv82())
 		return true;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QueryAES()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_AES) != 0))
@@ -930,11 +939,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__)
 	return IsAppleMachineARMv8();
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySHA1()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SHA1) != 0))
@@ -952,11 +963,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__)
 	return IsAppleMachineARMv8();
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySHA256()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__)
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SHA2) != 0))
@@ -974,12 +987,14 @@
 #elif defined(__APPLE__) && defined(__aarch64__)
 	return IsAppleMachineARMv8();
 #endif
+#endif
 	return false;
 }
 
 // Some ARMv8.2 features are disabled at the moment
 inline bool CPU_QuerySHA3()
 {
+#ifndef __TERMUX__
 	// According to the ARM manual, SHA3 depends upon SHA1 and SHA2.
 	// If SHA1 and SHA2 are not present, then SHA3 and SHA512 are
 	// not present. Also see Arm A64 Instruction Set Architecture,
@@ -1005,12 +1020,14 @@
 	if (IsAppleMachineARMv82())
 		return true;
 #endif
+#endif
 	return false;
 }
 
 // Some ARMv8.2 features are disabled at the moment
 inline bool CPU_QuerySHA512()
 {
+#ifndef __TERMUX__
 	// According to the ARM manual, SHA512 depends upon SHA1 and SHA2.
 	// If SHA1 and SHA2 are not present, then SHA3 and SHA512 are
 	// not present. Also see Arm A64 Instruction Set Architecture,
@@ -1036,12 +1053,14 @@
 	if (IsAppleMachineARMv82())
 		return true;
 #endif
+#endif
 	return false;
 }
 
 // Some ARMv8.2 features are disabled at the moment
 inline bool CPU_QuerySM3()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SM3) != 0))
@@ -1059,12 +1078,14 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	// No Apple support yet.
 #endif
+#endif
 	return false;
 }
 
 // Some ARMv8.2 features are disabled at the moment
 inline bool CPU_QuerySM4()
 {
+#ifndef __TERMUX__
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
 		((android_getCpuFeatures() & ANDROID_CPU_ARM64_FEATURE_SM4) != 0))
@@ -1082,6 +1103,7 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	// No Apple support yet.
 #endif
+#endif
 	return false;
 }
 
