Question about search for crt?.o files

[David Highley]

We have the need to capture our compilers into our configuration
management system so that we build with different versions. So I was
checking the capture of the compiler by wrapping an strace around a
compile that is invoked with the -B option to add a new search path for
the relocated compiler. Everything looked like it was being found in the
new location except when the crt?.o start up code is being looked for.
It appeared that directory locations were looked for first and then the
file, crt1.o or crti.o, was searched for all over the place. The
complilations work and the programs execute, but it does appear to
looking all over the file system for the start up code to be linked with
the application. This was observed with a 4.1.2 g++ build.