Explicitly specifying -lrt is required for opcache to be linked against
the proper dependencies. Additionally, PHP disables libdl when it
detects a cross-compilation environment for some reason. In order to
load any type of extension, re-enabling libdl is required.
Signed-off-by: Claude Bing <cbing@cybernetics.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>