Since FreeBSD doesn't have libdl, these errors are shown:
- config.log: /usr/bin/ld: cannot find -ldl
- crossgcc-build.log: configure: error: C compiler cannot create executables
Conditionally pass the presence of libdl in LDFLAGS.
Change-Id: I79c48da7e6700a4606c9e0c1314241db8997d3f3
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/2342
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>