Need help in debugging the unbuilt compiler

[Andi Hellmund]

> I have made some changes in the source code of the compiler. But,
> while building the compiler, it shows an error saying "conftest.c:
> cannot compute suffix for object files".
> To understand where I am wrong I have installed debugging tools like
> "Valgrind" and "ddd". But when I try to debug the conftest.c file I
> find that the compiler deletes the conftest.* files when it gets an
> error.

The conftest.c error occurs as part of the GCC configure process. The 
configure script uses small programs to check for certain features of 
the compiler and runtime environment.

Please check out this link from the Wiki-FAQ 
http://gcc.gnu.org/wiki/FAQ#configure_suffix which explains how-to 
proceed further.

As a quick summary: you must check the config.log file in the 
appropriate directory and there you should find the content of the 
conftest.c (at least with newer versions) which failed including the 
error message of the test compilation.

Andi