Author: Ralph Sennhauser <sera@gentoo.org>

The llvm libdir isn't in the default search path on Gentoo. Adding path explicitely.

diff --git a/configure.ac b/configure.ac
index 580840e..852f5a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -444,6 +444,7 @@ if test "x${SHARK_BUILD_TRUE}" = x || test "x${ADD_SHARK_BUILD_TRUE}" = x; then
       LLVM_LDFLAGS="$LLVM_LDFLAGS$flag"
     fi
   done
+  LLVM_LDFLAGS="$LLVM_LDFLAGS -Wl,-rpath,$($LLVM_CONFIG --libdir)"
   dnl LLVM_LIBS
   LIBS_SAVED=$LIBS
   LDFLAGS_SAVED=$LDFLAGS