rust: force cargo to build offline

gcc/rust/Changelog:
	PR rust/119333

	* Make-lang.in: Force offline mode for cargo

Signed-off-by: Marc Poulhiès <dkm@kataplop.net>

diff --git a/gcc/rust/Make-lang.in b/gcc/rust/Make-lang.in
index f222a844fa48097fdcfdc144dcc0b1988dc367ba..c024f241b5d3c0f20b785e7ee6abff8ad0065146 100644 (file)
--- a/gcc/rust/Make-lang.in
+++ b/gcc/rust/Make-lang.in
@@ -525,5 +525,5 @@ rust/%.o: rust/metadata/%.cc
 rust/libffi_polonius.a: \
        rust/checks/errors/borrowck/ffi-polonius/Cargo.toml \
        $(wildcard $(srcdir)/rust/checks/errors/borrowck/ffi-polonius/src/*)
-       cargo build --manifest-path $(srcdir)/rust/checks/errors/borrowck/ffi-polonius/Cargo.toml --release --target-dir rust/ffi-polonius
+       cd $(srcdir)/rust/checks/errors/borrowck/ffi-polonius/ && cargo build --offline --release --target-dir $(objdir)/rust/ffi-polonius
        cp rust/ffi-polonius/release/libffi_polonius.a rust/libffi_polonius.a