rtorrent: import from packages and update to 0.9.4

libtorrent: import from packages and update to 0.13.4

Signed-off-by: Peter Wagner <tripolar@gmx.at>

libs/libtorrent/patches/100-fix_cross_compile.patch

@@ -0,0 +1,41 @@
+--- a/configure.ac
++++ b/configure.ac
+@@ -19,7 +19,6 @@ AC_SUBST(LIBTORRENT_INTERFACE_VERSION_NO
+ 
+ AM_INIT_AUTOMAKE
+ AC_CONFIG_HEADERS(config.h)
+-AM_PATH_CPPUNIT(1.9.6)
+ 
+ AC_PROG_CXX
+ 
+--- a/scripts/checks.m4
++++ b/scripts/checks.m4
+@@ -96,7 +96,7 @@ AC_DEFUN([TORRENT_CHECK_KQUEUE], [
+ AC_DEFUN([TORRENT_CHECK_KQUEUE_SOCKET_ONLY], [
+   AC_MSG_CHECKING(whether kqueue supports pipes and ptys)
+ 
+-  AC_RUN_IFELSE([AC_LANG_SOURCE([
++  AC_LINK_IFELSE([AC_LANG_SOURCE([
+       #include <fcntl.h>
+       #include <stdlib.h>
+       #include <unistd.h>
+--- a/scripts/common.m4
++++ b/scripts/common.m4
+@@ -223,7 +223,7 @@ dnl   Need to fix this so that it uses t
+ AC_DEFUN([TORRENT_CHECK_EXECINFO], [
+   AC_MSG_CHECKING(for execinfo.h)
+ 
+-  AC_RUN_IFELSE([AC_LANG_SOURCE([
++  AC_LINK_IFELSE([AC_LANG_SOURCE([
+       #include <execinfo.h>
+       int main() { backtrace((void**)0, 0); backtrace_symbols((char**)0, 0); return 0;}
+       ])],
+@@ -238,7 +238,7 @@ AC_DEFUN([TORRENT_CHECK_EXECINFO], [
+ AC_DEFUN([TORRENT_CHECK_ALIGNED], [
+   AC_MSG_CHECKING(the byte alignment)
+ 
+-  AC_RUN_IFELSE([AC_LANG_SOURCE([
++  AC_LINK_IFELSE([AC_LANG_SOURCE([
+       #include <inttypes.h>
+       int main() {
+         char buf@<:@8@:>@ = { 0, 0, 0, 0, 1, 0, 0, 0 };