BUILD Rules.mk

[fordpinto]

I have a cross compiler that works and it requires me to include a 
build/Rules.mk file in order to link correctly.

I want to use the same cross compiler to build a standard open source project 
(I have tried mutiple). When running the ./configure script I get the error 
(from the config.log):
"C++ compiler cannot create executables"

I traced this to the configure.ac macro
AC_PROG_CXX 

According to config.log the cross compiler is found, so I think that this is a 
linker problem.

I know that the build/Rules.mk contains the linking rules but I do not know how 
to include them in the configure. 

I tried adding BUILD_RULES to configure.ac that didn't work ....
 
Any ideas?
Thanks in advance,

-Al