lib/compiler/configure_runner.zig | 336 +++++++++++++++++++++++++++
 lib/std/Build/Cache.zig           |   6 +
 lib/std/zig.zig                   |   2 +
 lib/std/zig/Configuration.zig     |  83 +++++++
 lib/std/zig/LibCInstallation.zig  |  18 +-
 src/Compilation.zig               |  14 +-
 src/main.zig                      | 389 ++++++++++++++++++++++----------
 src/print_env.zig                 |   4 +
 8 files changed, 715 insertions(+), 137 deletions(-)