* lib/gdb.exp (compiler_info): New global.
(test_compiler_info): New function.
(get_compiler_info): Set compiler_info.
* lib/compiler.c, lib/compiler.cc: Add copyright. When GNUC, set
"compiler_info" to gcc-<major>-<minor>.
structures.
* gdb.base/structs.c: C source for test.
Sanitized away until we've got a valid copyright assignment from
Michael Snyder.
Only tested on the PA. I assume other ports will needs some xfails
and other possible testsuite tweakage.