diff --git a/configure b/configure
index 45b4405132f..e875a9a0923 100755
--- a/configure
+++ b/configure
@@ -401,7 +401,8 @@ valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
 valopt mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
 
 # On windows we just store the libraries in the bin directory because
-# there's no rpath
+# there's no rpath. This is where the build system itself puts libraries;
+# --libdir is used to configure the installation directory.
 # FIXME: Thise needs to parameterized over target triples. Do it in platform.mk
 CFG_LIBDIR_RELATIVE=lib
 if [ "$CFG_OSTYPE" = "pc-mingw32" ]
@@ -410,7 +411,6 @@ then
 fi
 
 valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries"
-valopt rustlibdir "rustlib" "subdirectory name for rustc's libraries"
 
 if [ $HELP -eq 1 ]
 then
@@ -777,10 +777,10 @@ do
             make_dir $h/stage$i/test
 
             # target bin dir
-            make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/$CFG_RUSTLIBDIR/$t/bin
+            make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
 
             # target lib dir
-            make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/$CFG_RUSTLIBDIR/$t/lib
+            make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
         done
     done
 
@@ -1039,7 +1039,6 @@ putvar CFG_HOST
 putvar CFG_TARGET
 putvar CFG_C_COMPILER
 putvar CFG_LIBDIR
-putvar CFG_RUSTLIBDIR
 putvar CFG_LIBDIR_RELATIVE
 putvar CFG_DISABLE_MANAGE_SUBMODULES
 putvar CFG_ANDROID_CROSS_PATH
diff --git a/mk/dist.mk b/mk/dist.mk
index 91f64decb0c..60549e299cc 100644
--- a/mk/dist.mk
+++ b/mk/dist.mk
@@ -200,7 +200,7 @@ dist-install-dir-$(1): PREPARE_MAN_CMD=$(DEFAULT_PREPARE_MAN_CMD)
 dist-install-dir-$(1): PREPARE_CLEAN=true
 dist-install-dir-$(1): prepare-base-dir-$(1)
 	$$(Q)(cd $$(PREPARE_DEST_DIR)/ && find -type f | sed 's/^\.\///') \
-      > $$(PREPARE_DEST_DIR)/$$(CFG_LIBDIR_RELATIVE)/$$(CFG_RUSTLIBDIR)/manifest
+      > $$(PREPARE_DEST_DIR)/$$(CFG_LIBDIR_RELATIVE)/rustlib/manifest
 	$$(Q)$$(PREPARE_MAN_CMD) $$(S)COPYRIGHT $$(PREPARE_DEST_DIR)
 	$$(Q)$$(PREPARE_MAN_CMD) $$(S)LICENSE-APACHE $$(PREPARE_DEST_DIR)
 	$$(Q)$$(PREPARE_MAN_CMD) $$(S)LICENSE-MIT $$(PREPARE_DEST_DIR)
diff --git a/mk/main.mk b/mk/main.mk
index ccbdf30a1ff..38943f1f773 100644
--- a/mk/main.mk
+++ b/mk/main.mk
@@ -281,7 +281,6 @@ export CFG_LLVM_ROOT
 export CFG_ENABLE_MINGW_CROSS
 export CFG_PREFIX
 export CFG_LIBDIR
-export CFG_RUSTLIBDIR
 export CFG_LIBDIR_RELATIVE
 export CFG_DISABLE_INJECT_STD_VERSION
 
@@ -302,7 +301,7 @@ HBIN$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/bin
 HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(CFG_LIBDIR_RELATIVE)
 
 # Destinations of artifacts for target architectures
-TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/$$(CFG_RUSTLIBDIR)/$(2)
+TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/rustlib/$(2)
 TBIN$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/bin
 TLIB$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/lib
 
diff --git a/mk/prepare.mk b/mk/prepare.mk
index bf626b2101e..ae76ecc594c 100644
--- a/mk/prepare.mk
+++ b/mk/prepare.mk
@@ -121,8 +121,8 @@ endef
 # $(4) tag
 define DEF_PREPARE_TARGET_N
 # Rebind PREPARE_*_LIB_DIR to point to rustlib, then install the libs for the targets
-prepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_SOURCE_LIB_DIR=$$(PREPARE_SOURCE_LIB_DIR)/$$(CFG_RUSTLIBDIR)/$(2)/lib
-prepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_DEST_LIB_DIR=$$(PREPARE_DEST_LIB_DIR)/$$(CFG_RUSTLIBDIR)/$(2)/lib
+prepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_SOURCE_LIB_DIR=$$(PREPARE_SOURCE_LIB_DIR)/rustlib/$(2)/lib
+prepare-target-$(2)-host-$(3)-$(1)-$(4): PREPARE_WORKING_DEST_LIB_DIR=$$(PREPARE_DEST_LIB_DIR)/rustlib/$(2)/lib
 prepare-target-$(2)-host-$(3)-$(1)-$(4): prepare-maybe-clean-$(4) \
         $$(foreach crate,$$(TARGET_CRATES), \
           $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(crate)) \
diff --git a/mk/stage0.mk b/mk/stage0.mk
index 5582e50b7c4..080e733724d 100644
--- a/mk/stage0.mk
+++ b/mk/stage0.mk
@@ -15,7 +15,7 @@ $(SNAPSHOT_RUSTC_POST_CLEANUP):						\
 #   Note: the variable "SNAPSHOT_FILE" is generally not set, and so
 #   we generally only pass one argument to this script.
 ifdef CFG_ENABLE_LOCAL_RUST
-	$(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD) $(CFG_LOCAL_RUST_ROOT) $(CFG_RUSTLIBDIR)
+	$(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD) $(CFG_LOCAL_RUST_ROOT) rustlib
 else
 	$(Q)$(CFG_PYTHON) $(S)src/etc/get-snapshot.py $(CFG_BUILD) $(SNAPSHOT_FILE)
 ifdef CFG_ENABLE_PAX_FLAGS
diff --git a/mk/tests.mk b/mk/tests.mk
index 22d686b1b0e..b0ae685faa8 100644
--- a/mk/tests.mk
+++ b/mk/tests.mk
@@ -104,7 +104,7 @@ ifdef CFG_WINDOWSY_$(1)
                stage2/$$(CFG_LIBDIR_RELATIVE), \
                $$(if $$(findstring stage3,$$(1)), \
                     stage3/$$(CFG_LIBDIR_RELATIVE), \
-               )))))/$$(CFG_RUSTLIBDIR)/$$(CFG_BUILD)/lib
+               )))))/rustlib/$$(CFG_BUILD)/lib
   CFG_RUN_TEST_$(1)=$$(call CFG_RUN_$(1),$$(call CFG_TESTLIB_$(1),$$(1),$$(3)),$$(1))
 endif
 
diff --git a/src/etc/install.sh b/src/etc/install.sh
index 8dfc1903094..e6d20b932b3 100644
--- a/src/etc/install.sh
+++ b/src/etc/install.sh
@@ -237,7 +237,6 @@ need_ok "failed to remove install probe"
 
 # First, uninstall from the installation prefix.
 # Errors are warnings - try to rm everything in the manifest even if some fail.
-# FIXME: Hardcoded 'rustlib' ignores CFG_RUSTLIBDIR
 if [ -f "${CFG_PREFIX}/lib/rustlib/manifest" ]
 then
     # Iterate through installed manifest and remove files
diff --git a/src/librustc/metadata/filesearch.rs b/src/librustc/metadata/filesearch.rs
index fa794c88345..31252ab4f82 100644
--- a/src/librustc/metadata/filesearch.rs
+++ b/src/librustc/metadata/filesearch.rs
@@ -242,5 +242,5 @@ pub fn libdir() -> ~str {
 // The name of rustc's own place to organize libraries.
 // Used to be "rustc", now the default is "rustlib"
 pub fn rustlibdir() -> ~str {
-    (env!("CFG_RUSTLIBDIR")).to_owned()
+    ~"rustlib"
 }