radare2: Fix i686 build

packages/radare2/build.sh

@@ -10,7 +10,7 @@ TERMUX_PKG_BREAKS="radare2-dev"
 TERMUX_PKG_REPLACES="radare2-dev"
 TERMUX_PKG_BUILD_IN_SRC=true
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-compiler=termux-host"
-TERMUX_PKG_BLACKLISTED_ARCHES="i686, x86_64"
+TERMUX_PKG_BLACKLISTED_ARCHES="x86_64"
 
 termux_step_pre_configure() {
 	# Certain packages are not safe to build on device because their

packages/radare2/libr-debug-p-native-linux-linux_debug.c.patch

@@ -0,0 +1,15 @@
+diff -u -r ../radare2-4.1.1/libr/debug/p/native/linux/linux_debug.c ./libr/debug/p/native/linux/linux_debug.c
+--- ../radare2-4.1.1/libr/debug/p/native/linux/linux_debug.c	2019-12-20 12:22:09.000000000 +0000
++++ ./libr/debug/p/native/linux/linux_debug.c	2020-01-01 22:43:18.537610000 +0000
+@@ -40,7 +40,11 @@
+ #endif
+ 	} else {
+ #include "reg/linux-x64.h"
++#ifdef __ANDROID__
++#include <sys/ucontext.h>
++#else
+ #include <bits/sigcontext.h>
++#endif
+ 	}
+ #elif __powerpc__
+ 	if (dbg->bits & R_SYS_BITS_32) {