[U-Boot] ENV library broken with setenv/printenv argument structs

[Stefano Babic <sbabic@denx.de>]

Hi Andreas,

your series for the U-Boot environment tools does not let to use anymore
the tools as library to be linked to custom program.

In fact, tools/env/Makefile generates a library too:

lib-y += fw_env.o \
        crc32.o ctype.o linux_string.o \
        env_attr.o env_flags.o aes.o

that means that fw_main should not maintain any structure that is
referenced by the library.
In fact, linking with the library (renamed as ibubootenv.a), gives the
errors:

undefined reference to `printenv_args'
undefined reference to `common_args'

The two functions fw_printenv() and fw_setenv() are then supposed to be
called by a custom program, what it does not work anymore.

Can you take a look at it ?

Thanks,
Stefano Babic

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