[U-Boot] incorrect include/config.h causes?

[Amos, Brian J]

Hello, 

Would anyone be kind enough to help point me in the right direction for debugging the auto-generated '/include/config.h' file?  I've got a missing <platform>.h file name in line 8 of /include/config.h and a suspicious looking  CONFIG_BOARDDIR 

I'm attempting to add support for a custom board to u-boot 2017.03 and I find myself in the "if(clueless)" conditional inside the U-Boot Porting Guide of the README :-/ 

So far, I've worked through README.kconfig (specifically "Tips to add/remove boards" - steps 1-5).

My specific symptom is with the auto-generated file 'include/config.h'.  After running 'make <boardName>_defconfig'  I receive:
#
# configuration written to .config
# 

'make' results in the following output:
<snip>
In file included from ./include/common.h:21:0:
include/config.h:8:10: fatal error: configs/.h: No such file or directory
 #include <configs/.h>
          ^~~~~~~~~~~~
compilation terminated.
</snip >

#include <configs/.h> isn't pointing at a valid header file (which exists as '/configs/<boardName>.h').  

Lines 5 and 8 of /include/config.h look fishy to me:
cat -n include/config.h
     1  /* Automatically generated - do not edit */
     2  #define CONFIG_IMX_CONFIG       board/digi/ccimx6ul/imximage.cfg
     3  #define CONFIG_MX6UL    1
     4  #define CONFIG_DDR_MB   256
     5  #define CONFIG_BOARDDIR board/
     6  #include <config_defaults.h>
     7  #include <config_uncmd_spl.h>
     8  #include <configs/.h>
     9  #include <asm/config.h>
    10  #include <linux/kconfig.h>
    11  #include <config_fallbacks.h>
 

I had assumed the custom board  Kconfig file in the /board folder containing
config SYS_BORAD 
config SYS_CONFIG_NAME

would be used to setup #defines like CONFIG_BOARDDIR  CONFIG_SYS_BOARD and CONFIG_SYS_CONFIG_NAME

Obviously, I've missed something - does anyone have any hints on where to look next?  
Any docs I still need to read?  
	So far, I've been through README and /docs/REAME.kconfig 

Thanks!
Brian Amos