diff -uNr cryptopp/cpu.cpp cryptopp.mod/cpu.cpp
--- cryptopp/cpu.cpp	2021-01-01 19:03:59.000000000 +0200
+++ cryptopp.mod/cpu.cpp	2021-01-07 14:16:48.145624898 +0200
@@ -54,7 +54,7 @@
 // "$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
 
@@ -762,6 +762,7 @@
 
 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))
@@ -774,11 +775,13 @@
 	// 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))
@@ -800,11 +803,13 @@
 	// 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))
@@ -823,11 +828,13 @@
 	// No compiler support. CRC intrinsics result in a failed compiled.
 	return false;
 #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))
@@ -846,11 +853,13 @@
 	// No compiler support. PMULL intrinsics result in a failed compiled.
 	return false;
 #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))
@@ -868,11 +877,13 @@
 #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))
@@ -890,11 +901,13 @@
 #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))
@@ -912,11 +925,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__)
 	return IsAppleMachineARMv8();
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySHA512()
 {
+#ifndef __TERMUX__
 // Some ARMv8.4 features are disabled at the moment
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
@@ -935,11 +950,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	return false;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySHA3()
 {
+#ifndef __TERMUX__
 // Some ARMv8.4 features are disabled at the moment
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
@@ -958,11 +975,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	return false;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySM3()
 {
+#ifndef __TERMUX__
 // Some ARMv8.4 features are disabled at the moment
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
@@ -981,11 +1000,13 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	return false;
 #endif
+#endif
 	return false;
 }
 
 inline bool CPU_QuerySM4()
 {
+#ifndef __TERMUX__
 // Some ARMv8.4 features are disabled at the moment
 #if defined(__ANDROID__) && defined(__aarch64__) && 0
 	if (((android_getCpuFamily() & ANDROID_CPU_FAMILY_ARM64) != 0) &&
@@ -1004,6 +1025,7 @@
 #elif defined(__APPLE__) && defined(__aarch64__) && 0
 	return false;
 #endif
+#endif
 	return false;
 }