debugging a make/dependency issue

["Salz, Rich via openssl-users" <openssl-users@xxxxxxxxxxx>]

I am importing some code into openssl and getting a strange build error:

 

make[1]: *** No rule to make target 'crypto/bn/crypto/include.o', needed by 'libcrypto.a'.  Stop.

 

Any common ideas on what to look for (e.g., missing header file, wrong INCLUDE settings in build.info, etc) ?