rust/src/test/run-make/metadata-flag-frobs-symbols/Makefile
Alex Crichton cc3c8bbfaf rustc: Add a flag for specifying dependencies
This comit implements a new flag, --extern, which is used to specify where a
crate is located. The purpose of this flag is to bypass the normal crate
loading/matching of the compiler to point it directly at the right file.

This flag takes the form `--extern foo=bar` where `foo` is the name of a crate
and `bar` is the location at which to find the crate. Multiple `--extern`
directives are allowed with the same crate name to specify the rlib/dylib pair
for a crate. It is invalid to specify more than one rlib or more than one dylib,
and it's required that the crates are valid rust crates.

I have also added some extensive documentation to metadata::loader about how
crate loading should work.

RFC: 0035-remove-crate-id
2014-07-05 12:45:42 -07:00

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Makefile

-include ../tools.mk
all:
$(RUSTC) foo.rs -C metadata=a -C extra-filename=-a
$(RUSTC) foo.rs -C metadata=b -C extra-filename=-b
$(RUSTC) bar.rs \
--extern foo1=$(TMPDIR)/libfoo-a.rlib \
--extern foo2=$(TMPDIR)/libfoo-b.rlib \
-Z print-link-args
$(call RUN,bar)