ENABLE_ACL vs HAVE_ACL_LIBACL_H

[asolwa]

Hi,

In CMake there is a ENABLE_ACL flag, but regardless of its value following check if always executed:

libarchive/CMakeLists.txt

Line 690 in 8d12043

 LA_CHECK_INCLUDE_FILE("acl/libacl.h" HAVE_ACL_LIBACL_H) 

I think it should be conditionally disabled(based on ENABLE_ACL flag), shouldn't it?