[rust] Fix host-gcc use under SDK. JB#52983

With separate tools root, which is the case of SDK, path mapping must be
done on host-gcc arguments to make it reach rust libraries located under
the tools root. Here i686-unknown-linux-gdb-gcc is a wrapper provided by
rust-cross which does the necessary mapping.

Author: martyone

rust.changes

@@ -1,3 +1,6 @@
+* Fri Feb 05 2021 Martin Kampas <martin.kampas@jolla.com> - 1.44.0+git10
+- [rust] Fix host-gcc use under SDK. JB#52983
+
 * Fri Jan 25 2021 Niels Breet <niels.breet@jolla.com> - 1.44.0+git9
 - [aarch64] Enable aarch64 build for rust cross. JB#50499
 

rust.spec

@@ -44,7 +44,7 @@
 %bcond_without lldb
 
 Name:           rust
-Version:        %{rust_version}+git9
+Version:        %{rust_version}+git10
 Release:        1
 Summary:        The Rust Programming Language
 License:        (ASL 2.0 or MIT) and (BSD and MIT)
@@ -526,7 +526,7 @@ EOF
 mkdir %{buildroot}/.cargo
 cat <<'EOF' > %{buildroot}/.cargo/config
 [target.i686-unknown-linux-gnu]
-linker = "/usr/bin/host-cc"
+linker = "i686-unknown-linux-gnu-gcc"
 EOF
 chmod 755 %{buildroot}%{_bindir}/*