New package: xorriso

This is an ISO creation and burning tool. Burning most likely won't work
on Android without root even if device is connected to a burner but it's useful
to be able to create ISOs.

packages/xorriso/build.sh

@@ -0,0 +1,12 @@
+TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/xorriso
+TERMUX_PKG_DESCRIPTION="Tool for creating ISO files."
+TERMUX_PKG_VERSION=1.4.7
+TERMUX_PKG_SRCURL=https://www.gnu.org/software/xorriso/xorriso-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=b54997b71b979768b19ddc38ff15d773ce44cf449e63fb453e20be9d687d396a
+TERMUX_PKG_DEPENDS="iconv, libandroid-support"
+TERMUX_PKG_BUILD_IN_SRC=yes
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-jtethreads"
+
+termux_step_pre_configure() {
+        LDFLAGS+=" -landroid-support"
+}

packages/xorriso/pthread.patch

@@ -0,0 +1,23 @@
+diff -ur src-o/configure src/configure
+--- src-o/configure	2017-07-31 04:44:24.215397674 +0200
++++ src/configure	2017-07-31 04:45:19.667222873 +0200
+@@ -12719,7 +12719,7 @@
+ fi
+ 
+ 
+-THREAD_LIBS=-lpthread
++THREAD_LIBS=
+ 
+ 
+ 
+diff -ur src-o/configure.ac src/configure.ac
+--- src-o/configure.ac	2017-07-31 04:44:24.215397674 +0200
++++ src/configure.ac	2017-07-31 04:44:40.903346135 +0200
+@@ -113,7 +113,7 @@
+         ,
+         [#include <unistd.h>])
+ 
+-THREAD_LIBS=-lpthread
++THREAD_LIBS=
+ AC_SUBST(THREAD_LIBS)
+