Fix building with same version 1.38.0

debian/patches/d-fix-mips64el-bootstrap.patch

@@ -4,7 +4,7 @@ Bug: https://github.com/rust-lang/rust/issues/52108
 @@ -620,6 +620,8 @@
              (os.pathsep + env["LIBRARY_PATH"]) \
              if "LIBRARY_PATH" in env else ""
-         env["RUSTFLAGS"] = "-Cdebuginfo=2 "
+         env["RUSTFLAGS"] += " -Cdebuginfo=2 "
 +        if self.build_triple().startswith('mips'):
 +            env["RUSTFLAGS"] += "-Cllvm-args=-mxgot "
  

debian/patches/series

@@ -10,6 +10,7 @@ u-mips-fixes.diff
 u-fix-cross-compile-install-again.patch
 
 # not forwarded, or forwarded but unlikely to be merged
+u-rustbuild-rustflags.patch
 u-reproducible-dl-stage0.patch
 
 # Debian-specific patches, not suitable for upstream

debian/patches/u-rustbuild-rustflags.patch

@@ -0,0 +1,24 @@
+--- a/src/bootstrap/bootstrap.py
++++ b/src/bootstrap/bootstrap.py
+@@ -618,7 +618,7 @@
+         env["LIBRARY_PATH"] = os.path.join(self.bin_root(), "lib") + \
+             (os.pathsep + env["LIBRARY_PATH"]) \
+             if "LIBRARY_PATH" in env else ""
+-        env["RUSTFLAGS"] = "-Cdebuginfo=2 "
++        env["RUSTFLAGS"] += " -Cdebuginfo=2 "
+ 
+         build_section = "target.{}".format(self.build_triple())
+         target_features = []
+@@ -627,10 +627,10 @@
+         elif self.get_toml("crt-static", build_section) == "false":
+             target_features += ["-crt-static"]
+         if target_features:
+-            env["RUSTFLAGS"] += "-C target-feature=" + (",".join(target_features)) + " "
++            env["RUSTFLAGS"] += " -C target-feature=" + (",".join(target_features))
+         target_linker = self.get_toml("linker", build_section)
+         if target_linker is not None:
+-            env["RUSTFLAGS"] += "-C linker=" + target_linker + " "
++            env["RUSTFLAGS"] += " -C linker=" + target_linker
+ 
+         env["PATH"] = os.path.join(self.bin_root(), "bin") + \
+             os.pathsep + env["PATH"]

debian/rules

@@ -16,8 +16,8 @@ LOCAL_RUST_VERSION := $(shell rustc --version --verbose | sed -ne 's/^release: /
 include /usr/share/dpkg/buildflags.mk
 # TODO: more correct to use `[build] rustflags = []` list syntax in Cargo.toml
 RUSTFLAGS = $(addprefix -C link-args=,$(LDFLAGS))
+RUSTFLAGS += --cap-lints warn --remap-path-prefix=$(CURDIR)=/usr/src/rustc-$(RUST_LONG_VERSION)
 export CFLAGS CXXFLAGS CPPFLAGS LDFLAGS RUSTFLAGS
-RUSTFLAGS += --remap-path-prefix=$(CURDIR)=/usr/src/rustc-$(RUST_LONG_VERSION)
 export CARGO_HOME = $(CURDIR)/debian/cargo
 ifneq (,$(filter $(DEB_BUILD_ARCH), sparc64))
 export CARGO_INCREMENTAL = 0