[U-Boot] building tools/env

hi there, I'm attempting to build u-boot 1.1.1 tools/env and the build is failed. Any ideas on best way to enable it in the build. Here's what I did so far

first, update tools/Makefile

TOOLSUBDIRS = env

then

top level build make clobber mrproper make octeon_cn3010_evb_hs5_config make all

the build in tools/env fails due to missing include files linux/mtd/mtd.h zlib.h

add to tools/env/Makefile

CPPFLAGS += ../../include

and include CPPFLAGS here:

fw_printenv : $(SOURCES) $(HEADERS) $(CROSS_COMPILE)gcc -Wall $(CPPFLAGS) -DUSE_HOSTCC $(SOURCES) -o fw_printenv

but this leads to build error on definitions of uint32_t, phys_addr_t and erase_info_t

Any ideas on preferred way to build tools/env?

thanks in advance!