libtorrent: proper cross build support.

srcpkgs/libtorrent/patches/fix-sysroot-handling.patch

@@ -0,0 +1,14 @@
+--sysroot should be enough.
+
+--- scripts/common.m4.orig	2014-02-02 11:58:17.361448885 +0100
++++ scripts/common.m4	2014-02-02 11:59:13.048185911 +0100
+@@ -63,8 +63,7 @@ AC_DEFUN([TORRENT_WITH_SYSROOT], [
+       else
+         AC_MSG_RESULT($withval)
+         
+-        CXXFLAGS="$CXXFLAGS -isysroot $withval"
+-        LDFLAGS="$LDFLAGS -Wl,-syslibroot,$withval"
++        CXXFLAGS="$CXXFLAGS --sysroot=$withval"
+       fi
+     ])
+ ])

srcpkgs/libtorrent/template

@@ -11,8 +11,9 @@ case "$XBPS_TARGET_MACHINE" in
 	*) _endiannes="ac_cv_c_bigendian=yes";;
 esac
 
-configure_args="--enable-static --disable-debug --without-kqueue --enable-aligned ${_endiannes}"
+configure_args="--enable-static --disable-debug --without-kqueue
-hostmakedepends="pkg-config"
+ --enable-aligned ${_endiannes} --with-posix-fallocate have_stat_vfs=yes"
+hostmakedepends="automake libtool pkg-config"
 makedepends="openssl-devel libsigc++-devel"
 short_desc="BitTorrent library written in C++"
 maintainer="Juan RP <xtraeme@gmail.com>"
@@ -21,6 +22,12 @@ license="GPL-2"
 distfiles="http://libtorrent.rakshasa.no/downloads/$pkgname-$version.tar.gz"
 checksum=ed2f2dea16c29cac63fa2724f6658786d955f975861fa6811bcf1597ff8a5e4f
 
+pre_configure() {
+	# Drop cppunit requirement
+	sed '/AM_PATH_CPPUNIT.*/d' -i configure.ac
+	autoreconf -fi
+}
+
 libtorrent-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"
 	short_desc+=" - development files"