diff --git a/packages/libevent/bufferevent_compat.h.patch b/packages/libevent/bufferevent_compat.h.patch
new file mode 100644
index 000000000..46095f0ac
--- /dev/null
+++ b/packages/libevent/bufferevent_compat.h.patch
@@ -0,0 +1,21 @@
+See https://github.com/libevent/libevent/pull/442
+
+diff -u -r ../libevent-release-2.1.8-stable/include/event2/bufferevent_compat.h ./include/event2/bufferevent_compat.h
+--- ../libevent-release-2.1.8-stable/include/event2/bufferevent_compat.h	2017-01-26 00:37:15.000000000 +0100
++++ ./include/event2/bufferevent_compat.h	2017-01-28 00:45:04.068858074 +0100
+@@ -72,6 +72,7 @@
+ 	  error occurred
+   @see bufferevent_base_set(), bufferevent_free()
+   */
++EVENT2_EXPORT_SYMBOL
+ struct bufferevent *bufferevent_new(evutil_socket_t fd,
+     evbuffercb readcb, evbuffercb writecb, everrorcb errorcb, void *cbarg);
+ 
+@@ -83,6 +84,7 @@
+   @param timeout_read the read timeout
+   @param timeout_write the write timeout
+  */
++EVENT2_EXPORT_SYMBOL
+ void bufferevent_settimeout(struct bufferevent *bufev,
+     int timeout_read, int timeout_write);
+ 
diff --git a/packages/libevent/build.sh b/packages/libevent/build.sh
index 42f254c21..062d5ec43 100755
--- a/packages/libevent/build.sh
+++ b/packages/libevent/build.sh
@@ -1,7 +1,29 @@
 TERMUX_PKG_HOMEPAGE=http://libevent.org/
 TERMUX_PKG_DESCRIPTION="Library that provides asynchronous event notification"
-TERMUX_PKG_VERSION=2.0.22
-TERMUX_PKG_REVISION=2
-TERMUX_PKG_SRCURL=https://github.com/libevent/libevent/releases/download/release-${TERMUX_PKG_VERSION}-stable/libevent-${TERMUX_PKG_VERSION}-stable.tar.gz
+TERMUX_PKG_VERSION=2.1.8
+TERMUX_PKG_SRCURL=https://github.com/libevent/libevent/archive/release-${TERMUX_PKG_VERSION}-stable.tar.gz
+TERMUX_PKG_SHA256=316ddb401745ac5d222d7c529ef1eada12f58f6376a66c1118eee803cb70f83d
 # Strip away libevent core, extra and openssl libraries until someone uses them
 TERMUX_PKG_RM_AFTER_INSTALL="bin/event_rpcgen.py lib/libevent_*"
+TERMUX_PKG_FOLDERNAME=libevent-release-${TERMUX_PKG_VERSION}-stable
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="\
+-DEVENT__BUILD_SHARED_LIBRARIES=ON
+-DEVENT__DISABLE_BENCHMARK=ON
+-DEVENT__DISABLE_OPENSSL=ON
+-DEVENT__DISABLE_REGRESS=ON
+-DEVENT__DISABLE_SAMPLES=ON
+-DEVENT__DISABLE_TESTS=ON
+-DEVENT__DISABLE_TESTS=ON
+-DEVENT__HAVE_WAITPID_WITH_WNOWAIT=ON
+-DEVENT__SIZEOF_PTHREAD_T=$((TERMUX_ARCH_BITS/8))
+"
+termux_step_post_make_install() {
+	# Building with cmake does not install .pc files, see
+	# https://github.com/libevent/libevent/issues/443
+	cat > "$PKG_CONFIG_LIBDIR/libevent.pc" <<-HERE
+		Name: libevent
+		Description: libevent is an asynchronous notification event loop library
+		Version: ${TERMUX_PKG_VERSION}-stable
+		Libs: -levent
+	HERE
+}
diff --git a/packages/libevent/dns_compat.h.patch b/packages/libevent/dns_compat.h.patch
new file mode 100644
index 000000000..3df460f8d
--- /dev/null
+++ b/packages/libevent/dns_compat.h.patch
@@ -0,0 +1,153 @@
+See https://github.com/libevent/libevent/pull/442
+
+diff -u -r ../libevent-release-2.1.8-stable/include/event2/dns_compat.h ./include/event2/dns_compat.h
+--- ../libevent-release-2.1.8-stable/include/event2/dns_compat.h	2017-01-26 00:37:15.000000000 +0100
++++ ./include/event2/dns_compat.h	2017-01-28 01:02:54.391639424 +0100
+@@ -66,6 +66,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_shutdown()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_init(void);
+ 
+ struct evdns_base;
+@@ -76,6 +77,7 @@
+    @deprecated This function is deprecated because use of the global
+      evdns_base is error-prone.
+  */
++EVENT2_EXPORT_SYMBOL
+ struct evdns_base *evdns_get_global_base(void);
+ 
+ /**
+@@ -93,6 +95,7 @@
+ 		active requests will return DNS_ERR_SHUTDOWN.
+   @see evdns_init()
+  */
++EVENT2_EXPORT_SYMBOL
+ void evdns_shutdown(int fail_requests);
+ 
+ /**
+@@ -109,6 +112,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_nameserver_ip_add()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_nameserver_add(unsigned long int address);
+ 
+ /**
+@@ -126,6 +130,7 @@
+   @return the number of configured nameservers
+   @see evdns_nameserver_add()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_count_nameservers(void);
+ 
+ /**
+@@ -140,6 +145,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_resume()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_clear_nameservers_and_suspend(void);
+ 
+ /**
+@@ -155,6 +161,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_clear_nameservers_and_suspend()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resume(void);
+ 
+ /**
+@@ -170,6 +177,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_nameserver_add()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_nameserver_ip_add(const char *ip_as_string);
+ 
+ /**
+@@ -186,6 +194,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_resolve_ipv6(), evdns_resolve_reverse(), evdns_resolve_reverse_ipv6()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resolve_ipv4(const char *name, int flags, evdns_callback_type callback, void *ptr);
+ 
+ /**
+@@ -198,6 +207,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_resolve_ipv4(), evdns_resolve_reverse(), evdns_resolve_reverse_ipv6()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resolve_ipv6(const char *name, int flags, evdns_callback_type callback, void *ptr);
+ 
+ struct in_addr;
+@@ -217,6 +227,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_resolve_reverse_ipv6()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resolve_reverse(const struct in_addr *in, int flags, evdns_callback_type callback, void *ptr);
+ 
+ /**
+@@ -233,6 +244,7 @@
+   @return 0 if successful, or -1 if an error occurred
+   @see evdns_resolve_reverse_ipv6()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resolve_reverse_ipv6(const struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr);
+ 
+ /**
+@@ -251,6 +263,7 @@
+   @param flags Ignored.
+   @return 0 if successful, or -1 if an error occurred
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_set_option(const char *option, const char *val, int flags);
+ 
+ /**
+@@ -278,6 +291,7 @@
+     occurred (see above)
+   @see resolv.conf(3), evdns_config_windows_nameservers()
+  */
++EVENT2_EXPORT_SYMBOL
+ int evdns_resolv_conf_parse(int flags, const char *const filename);
+ 
+ /**
+@@ -287,6 +301,7 @@
+     caller to specify which evdns_base it applies to.  The recommended
+     function is evdns_base_search_clear().
+  */
++EVENT2_EXPORT_SYMBOL
+ void evdns_search_clear(void);
+ 
+ /**
+@@ -298,6 +313,7 @@
+ 
+   @param domain the domain to be added to the search list
+  */
++EVENT2_EXPORT_SYMBOL
+ void evdns_search_add(const char *domain);
+ 
+ /**
+@@ -312,6 +328,7 @@
+ 
+   @param ndots the new ndots parameter
+  */
++EVENT2_EXPORT_SYMBOL
+ void evdns_search_ndots_set(const int ndots);
+ 
+ /**
+@@ -322,9 +339,11 @@
+     function is evdns_add_server_port_with_base().
+ 
+ */
++EVENT2_EXPORT_SYMBOL
+ struct evdns_server_port *evdns_add_server_port(evutil_socket_t socket, int flags, evdns_request_callback_fn_type callback, void *user_data);
+ 
+ #ifdef _WIN32
++EVENT2_EXPORT_SYMBOL
+ int evdns_config_windows_nameservers(void);
+ #define EVDNS_CONFIG_WINDOWS_NAMESERVERS_IMPLEMENTED
+ #endif
diff --git a/packages/libevent/evdns.c.patch b/packages/libevent/evdns.c.patch
index 93f7bac2f..cf8acb514 100644
--- a/packages/libevent/evdns.c.patch
+++ b/packages/libevent/evdns.c.patch
@@ -1,19 +1,19 @@
-diff -u -r ../libevent-2.0.22-stable/evdns.c ./evdns.c
---- ../libevent-2.0.22-stable/evdns.c	2014-03-26 11:09:18.000000000 -0400
-+++ ./evdns.c	2016-08-26 17:17:43.939853284 -0400
-@@ -49,6 +49,9 @@
-  */
+diff -u -r ../libevent-release-2.1.8-stable/evdns.c ./evdns.c
+--- ../libevent-release-2.1.8-stable/evdns.c	2017-01-26 00:37:15.000000000 +0100
++++ ./evdns.c	2017-01-28 00:02:43.332229763 +0100
+@@ -52,6 +52,9 @@
+ #include "evconfig-private.h"
  
  #include <sys/types.h>
 +#ifdef __ANDROID__
 +# include <sys/system_properties.h>
 +#endif
- #include "event2/event-config.h"
  
  #ifndef _FORTIFY_SOURCE
-@@ -3892,6 +3895,21 @@
+ #define _FORTIFY_SOURCE 3
+@@ -3959,6 +3962,21 @@
  		int r;
- #ifdef WIN32
+ #ifdef _WIN32
  		r = evdns_base_config_windows_nameservers(base);
 +#elif defined(__ANDROID__)
 +		/** From: http://www.programering.com/a/MjMwcjMwATA.html */
diff --git a/packages/libevent/evutil_rand.c.patch b/packages/libevent/evutil_rand.c.patch
new file mode 100644
index 000000000..279ed3d72
--- /dev/null
+++ b/packages/libevent/evutil_rand.c.patch
@@ -0,0 +1,14 @@
+diff -u -r ../libevent-release-2.1.8-stable/evutil_rand.c ./evutil_rand.c
+--- ../libevent-release-2.1.8-stable/evutil_rand.c	2017-01-26 00:37:15.000000000 +0100
++++ ./evutil_rand.c	2017-01-27 23:51:13.124764486 +0100
+@@ -195,8 +195,10 @@
+ void
+ evutil_secure_rng_add_bytes(const char *buf, size_t n)
+ {
++#ifndef __ANDROID__
+ 	arc4random_addrandom((unsigned char*)buf,
+ 	    n>(size_t)INT_MAX ? INT_MAX : (int)n);
++#endif
+ }
+ 
+ void
diff --git a/packages/libevent/evutil_secure_rng_add_bytes.patch b/packages/libevent/evutil_secure_rng_add_bytes.patch
deleted file mode 100644
index f3c4c3d08..000000000
--- a/packages/libevent/evutil_secure_rng_add_bytes.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-Patch taken from https://gitweb.torproject.org/orbot.git/tree/external/libevent-patch-1
-For some reason arc4random_addrandom isn't present in 64-bit android archs. !
-
---- ./configure.ac	2015-01-05 20:00:02.000000000 +0530
-+++ ../configure.ac	2016-12-06 10:15:44.617028345 +0530
-@@ -290,7 +290,7 @@
- 
- dnl Checks for library functions.
- AC_CHECK_FUNCS([gettimeofday vasprintf fcntl clock_gettime strtok_r strsep])
--AC_CHECK_FUNCS([getnameinfo strlcpy inet_ntop inet_pton signal sigaction strtoll inet_aton pipe eventfd sendfile mmap splice arc4random arc4random_buf issetugid geteuid getegid getprotobynumber setenv unsetenv putenv sysctl])
-+AC_CHECK_FUNCS([getnameinfo strlcpy inet_ntop inet_pton signal sigaction strtoll inet_aton pipe eventfd sendfile mmap splice arc4random arc4random_buf arc4random_addrandom issetugid geteuid getegid getprotobynumber setenv unsetenv putenv sysctl])
- AC_CHECK_FUNCS([umask])
- 
- AC_CACHE_CHECK(
---- ./evutil_rand.c	2013-11-01 23:48:57.000000000 +0530
-+++ ../evutil_rand.c	2016-12-06 10:38:19.748912002 +0530
-@@ -174,7 +176,9 @@
- void
- evutil_secure_rng_add_bytes(const char *buf, size_t n)
- {
-+#ifdef _EVENT_HAVE_ARC4RANDOM_ADDRANDOM
- 	arc4random_addrandom((unsigned char*)buf,
- 	    n>(size_t)INT_MAX ? INT_MAX : (int)n);
-+#endif
- }
- 
diff --git a/packages/tmate/build.sh b/packages/tmate/build.sh
index 5b8ff6faf..d366efc3a 100644
--- a/packages/tmate/build.sh
+++ b/packages/tmate/build.sh
@@ -1,6 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://tmate.io
 TERMUX_PKG_DESCRIPTION="Terminal multiplexer with instant terminal sharing"
 TERMUX_PKG_VERSION=2.2.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://github.com/tmate-io/tmate/archive/${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=d9c2ac59f42e65aac5f500f0548ea8056fd79c9c5285e5af324d833e2a84c305
 TERMUX_PKG_FOLDERNAME=tmate-${TERMUX_PKG_VERSION}
diff --git a/packages/tmux/build.sh b/packages/tmux/build.sh
index 2a88ca36e..fd5255db9 100755
--- a/packages/tmux/build.sh
+++ b/packages/tmux/build.sh
@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Terminal multiplexer implementing switching between seve
 # Link against libandroid-support for wcwidth(), see https://github.com/termux/termux-packages/issues/224
 TERMUX_PKG_DEPENDS="ncurses, libevent, libutil, libandroid-support"
 TERMUX_PKG_VERSION=2.3
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://github.com/tmux/tmux/releases/download/${TERMUX_PKG_VERSION}/tmux-${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_BUILD_IN_SRC=yes
 
diff --git a/packages/transmission/build.sh b/packages/transmission/build.sh
index f7cc60b21..547c85b38 100755
--- a/packages/transmission/build.sh
+++ b/packages/transmission/build.sh
@@ -2,8 +2,9 @@ TERMUX_PKG_HOMEPAGE=http://www.transmissionbt.com/
 TERMUX_PKG_DESCRIPTION="Easy, lean and powerful BitTorrent client"
 TERMUX_PKG_DEPENDS="curl, libevent, openssl"
 TERMUX_PKG_VERSION=2.92
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=https://transmission.cachefly.net/transmission-${TERMUX_PKG_VERSION}.tar.xz
+TERMUX_PKG_SHA256=3a8d045c306ad9acb7bf81126939b9594553a388482efa0ec1bfb67b22acd35f
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-gtk --enable-lightweight --cache-file=termux_configure.cache"
 
 termux_step_pre_configure() {