added -L/usr/lib for HP-UX shared lib

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7011 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure.in

@@ -2002,6 +2002,9 @@ if test "$wxUSE_SHARED" = "yes"; then
             SHARED_LD="${CC} -shared -fPIC -o"
             PIC_FLAG="-fPIC"
         else
+            dnl no idea why it wants it, but it does
+            LDFLAGS="-L/usr/lib"
+
             SHARED_LD="${CXX} -b -o"
             PIC_FLAG="+Z"
         fi