Define SOCI_LIBDIR only if its not passed via environemnt. In OE we
want to set it per our choice since we use 'lib' for 64bit unless we
are using multilib

-Khem

Index: soci-3.2.2/CMakeLists.txt
===================================================================
--- soci-3.2.2.orig/CMakeLists.txt
+++ soci-3.2.2/CMakeLists.txt
@@ -69,11 +69,12 @@ include(SociDependencies)
 ###############################################################################
 # Installation
 ###############################################################################
-
-if(APPLE OR CMAKE_SIZEOF_VOID_P EQUAL 4)
-  set(SOCI_LIBDIR "lib")
-else()
-  set(SOCI_LIBDIR "lib64")
+if(NOT DEFINED SOCI_LIBDIR)
+  if(APPLE OR CMAKE_SIZEOF_VOID_P EQUAL 4)
+    set(SOCI_LIBDIR "lib")
+  else()
+    set(SOCI_LIBDIR "lib")
+  endif()
 endif()
 
 set(BINDIR "bin" CACHE PATH "The directory to install binaries into.")