https://github.com/termux/termux-packages/issues/15852

+++ ./lib-src/libnyquist/nyquist/xlisp/security.c
@@ -5,7 +5,7 @@
 
 #include <stdlib.h>
 #include "switches.h"
-#if defined(UNIX) || defined(__APPLE__) || defined(__CYGWIN__)
+#if defined(UNIX) || defined(__APPLE__) || defined(__CYGWIN__) || defined(__ANDROID__)
 #include <unistd.h>
 #endif
 #ifdef WIN32
