Use mic libstarpu from builddir

tests/loader-cross.sh.in

@@ -1,8 +1,9 @@
 #!/bin/bash
 
 top_srcdir="@top_srcdir@"
+top_builddir="@top_builddir@"
 
 NATIVE=${PWD/\/build_mic\//\/build_host\/}
 DIR="$(dirname "$1")"
 FILE="$(basename "$1")"
-STARPU_MIC_SINK_PROGRAM_NAME="$DIR/.libs/$FILE" $top_srcdir/build_host/tests/loader "$NATIVE/$1"
+SINK_LD_LIBRARY_PATH="$top_builddir/src/.libs" STARPU_MIC_SINK_PROGRAM_NAME="$DIR/.libs/$FILE" $top_srcdir/build_host/tests/loader "$NATIVE/$1"