--- src/texk/dvipdfm-x/pdfencrypt.h~	2016-01-06 11:13:28.000000000 +0100
+++ src/texk/dvipdfm-x/pdfencrypt.h	2016-12-31 11:13:43.734942973 +0100
@@ -38,4 +38,19 @@
                               unsigned char **cipher, size_t *cipher_len);
 extern pdf_obj *pdf_encrypt_obj (void);
 
+
+#ifdef __ANDROID__
+static char* getpass(const char* prompt) {
+	static char chars[128];
+	int len = 0;
+	while (true) {
+		char c = fgetc(stdin); 
+		if (c == '\r' || c == '\n' || c == 0) break; 
+		chars[len++] = c;
+		if (len == sizeof(chars)-1) break;
+	} 
+	chars[len] = 0;
+	return chars;
+}
+#endif
 #endif /* _PDFENCRYPT_H_ */