diff --git a/Makefile.in b/Makefile.in
index 3a762f1c00f..0d31853af06 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -118,14 +118,10 @@ CFG_STDLIB :=$(call CFG_LIB_NAME,std)
 CFG_LIBRUSTC :=$(call CFG_LIB_NAME,rustc)
 CFG_LIBSYNTAX :=$(call CFG_LIB_NAME,syntax)
 
-STDLIB_GLOB :=$(call CFG_LIB_GLOB,std)
-CORELIB_GLOB :=$(call CFG_LIB_GLOB,core)
-LIBRUSTC_GLOB :=$(call CFG_LIB_GLOB,rustc)
-LIBSYNTAX_GLOB :=$(call CFG_LIB_GLOB,syntax)
-STDLIB_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,std)
-CORELIB_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,core)
-LIBRUSTC_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,rustc)
-LIBSYNTAX_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,syntax)
+STDLIB_GLOB =$(call CFG_LIB_GLOB,$(1),std)
+CORELIB_GLOB =$(call CFG_LIB_GLOB,$(1),core)
+LIBRUSTC_GLOB =$(call CFG_LIB_GLOB,$(1),rustc)
+LIBSYNTAX_GLOB =$(call CFG_LIB_GLOB,$(1),syntax)
 
 # version-string calculation
 CFG_GIT_DIR := $(CFG_SRC_DIR).git
diff --git a/mk/clean.mk b/mk/clean.mk
index d36cbaf7d0b..ba9b0db8e9d 100644
--- a/mk/clean.mk
+++ b/mk/clean.mk
@@ -62,10 +62,10 @@ clean$(1)_H_$(2):
 	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(CFG_STDLIB)
 	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(CFG_LIBRUSTC)
 	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(CFG_LIBSYNTAX)
-	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(CORELIB_GLOB)
-	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(STDLIB_GLOB)
-	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(LIBRUSTC_GLOB)
-	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(LIBSYNTAX_GLOB)
+	$(Q)rm -f $$(call CORELIB_GLOB,$$(HLIB$(1)_H_$(2)))
+	$(Q)rm -f $$(call STDLIB_GLOB,$$(HLIB$(1)_H_$(2))))
+	$(Q)rm -f $$(call LIBRUSTC_GLOB,$$(HLIB$(1)_H_$(2)))
+	$(Q)rm -f $$(call LIBSYNTAX_GLOB,$$(HLIB$(1)_H_$(2)))
 	$(Q)rm -f $$(HLIB$(1)_H_$(2))/$(CFG_RUSTLLVM)
 	$(Q)rm -f $$(HLIB$(1)_H_$(2))/libstd.rlib
 
@@ -88,10 +88,10 @@ clean$(1)_T_$(2)_H_$(3):
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB)
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBRUSTC)
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBSYNTAX)
-	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(CORELIB_GLOB)
-	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(STDLIB_GLOB)
-	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(LIBRUSTC_GLOB)
-	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(LIBSYNTAX_GLOB)
+	$(Q)rm -f $$(call CORELIB_GLOB,$$(TLIB$(1)_T_$(2)_H_$(3)))
+	$(Q)rm -f $$(call STDLIB_GLOB,$$(TLIB$(1)_T_$(2)_H_$(3)))
+	$(Q)rm -f $$(call LIBRUSTC_GLOB,$$(TLIB$(1)_T_$(2)_H_$(3)))
+	$(Q)rm -f $$(call LIBSYNTAX_GLOB,$$(TLIB$(1)_T_$(2)_H_$(3)))
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_RUSTLLVM)
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libstd.rlib
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a
diff --git a/mk/host.mk b/mk/host.mk
index c71e48f6f12..d416b64e494 100644
--- a/mk/host.mk
+++ b/mk/host.mk
@@ -30,8 +30,7 @@ $$(HLIB$(2)_H_$(4))/$$(CFG_LIBRUSTC): \
 	$$(HSTDLIB_DEFAULT$(2)_H_$(3))
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
-	$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBRUSTC_GLOB) \
-		$$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBRUSTC_DSYM_GLOB) \
+	$$(Q)cp -R $$(call LIBRUSTC_GLOB,$$(TLIB$(1)_T_$(4)_H_$(3))) \
 	        $$(HLIB$(2)_H_$(4))
 
 $$(HLIB$(2)_H_$(4))/$$(CFG_LIBSYNTAX): \
@@ -42,8 +41,7 @@ $$(HLIB$(2)_H_$(4))/$$(CFG_LIBSYNTAX): \
 	$$(HSTDLIB_DEFAULT$(2)_H_$(3))
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
-	$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBSYNTAX_GLOB) \
-		$$(TLIB$(1)_T_$(4)_H_$(3))/$(LIBSYNTAX_DSYM_GLOB) \
+	$$(Q)cp -R $$(call LIBSYNTAX_GLOB,$$(TLIB$(1)_T_$(4)_H_$(3))) \
 	        $$(HLIB$(2)_H_$(4))
 
 $$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME): \
@@ -56,15 +54,7 @@ $$(HLIB$(2)_H_$(4))/$$(CFG_CORELIB): \
 	$$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME)
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
-# Subtle: We do not let the shell expand $(CORELIB_DSYM_GLOB) directly rather
-# we use Make's $$(wildcard) facility. The reason is that, on mac, when using
-# USE_SNAPSHOT_CORELIB, we copy the core.dylib file out of the snapshot.
-# In that case, there is no .dSYM file.  Annoyingly, bash then refuses to expand
-# glob, and cp reports an error because libcore-*.dylib.dsym does not exist.
-# Make instead expands the glob to nothing, which gives us the correct behavior.
-# (Copy .dsym file if it exists, but do nothing otherwise)
-	$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(CORELIB_GLOB) \
-		$$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(CORELIB_DSYM_GLOB)) \
+	$$(Q)cp -R $$(call CORELIB_GLOB,$$(TLIB$(1)_T_$(4)_H_$(3))) \
 	        $$(HLIB$(2)_H_$(4))
 
 $$(HLIB$(2)_H_$(4))/$$(CFG_STDLIB): \
@@ -73,8 +63,7 @@ $$(HLIB$(2)_H_$(4))/$$(CFG_STDLIB): \
 	$$(HLIB$(2)_H_$(4))/$$(CFG_RUNTIME)
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
-	$$(Q)cp -R $$(TLIB$(1)_T_$(4)_H_$(3))/$(STDLIB_GLOB) \
-		$$(wildcard $$(TLIB$(1)_T_$(4)_H_$(3))/$(STDLIB_DSYM_GLOB)) \
+	$$(Q)cp -R $$(call STDLIB_GLOB,$$(TLIB$(1)_T_$(4)_H_$(3))) \
 	        $$(HLIB$(2)_H_$(4))
 
 $$(HLIB$(2)_H_$(4))/libcore.rlib: \
diff --git a/mk/install.mk b/mk/install.mk
index 029fa30e7b8..fe9428eade0 100644
--- a/mk/install.mk
+++ b/mk/install.mk
@@ -6,11 +6,12 @@
 # destination directory as arg 2, and filename/libname-glob as arg 3
 ifdef VERBOSE
  INSTALL = install -m755 $(1)/$(3) $(2)/$(3)
- INSTALL_LIB = install -m644 `ls -rt1 $(1)/$(3) | tail -1` $(2)/
+ INSTALL_LIB = install -m644 $(3) $(2)/
 else
  INSTALL = $(Q)$(call E, install: $(2)/$(3)) && install -m755 $(1)/$(3) $(2)/$(3)
- INSTALL_LIB = $(Q)$(call E, install_lib: $(2)/$(3)) &&                    \
-	       install -m644 `ls -rt1 $(1)/$(3) | tail -1` $(2)/
+ INSTALL_LIB = $(Q)$(call E, install_lib: \
+                   $(addprefix $(2)/,$(basename $(3)))) &&  \
+	               install -m644 $(3) $(2)/
 endif
 
 # The stage we install from
@@ -37,13 +38,17 @@ install-target-$(1)-host-$(2): $$(SREQ$$(ISTAGE)_T_$(1)_H_$(2))
 	$$(Q)mkdir -p $$(PTL$(1)$(2))
 	$$(Q)$$(call INSTALL,$$(TL$(1)$(2)),$$(PTL$(1)$(2)),$$(CFG_RUNTIME))
 	$$(Q)$$(call INSTALL_LIB, \
-		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),$$(CORELIB_GLOB))
+		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),\
+            $$(call CORELIB_GLOB,$$(TL$(1)$(2))))
 	$$(Q)$$(call INSTALL_LIB, \
-		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),$$(STDLIB_GLOB))
+		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),\
+            $$(call STDLIB_GLOB,$$(TL$(1)$(2))))
 	$$(Q)$$(call INSTALL_LIB, \
-		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),$$(LIBRUSTC_GLOB))
+		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),\
+            $$(call LIBRUSTC_GLOB,$$(TL$(1)$(2))))
 	$$(Q)$$(call INSTALL_LIB, \
-		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),$$(LIBSYNTAX_GLOB))
+		$$(TL$(1)$(2)),$$(PTL$(1)$(2)),\
+            $$(call LIBSYNTAX_GLOB,$$(TL$(1)$(2))))
 	$$(Q)$$(call INSTALL,$$(TL$(1)$(2)),$$(PTL$(1)$(2)),libmorestack.a)
 
 endef
@@ -74,10 +79,10 @@ install-host: $(SREQ$(ISTAGE)_T_$(CFG_HOST_TRIPLE)_H_$(CFG_HOST_TRIPLE))
 	$(Q)$(call INSTALL,$(HB2),$(PHB),cargo$(X))
 	$(Q)$(call INSTALL,$(HB2),$(PHB),rustdoc$(X))
 	$(Q)$(call INSTALL,$(HL),$(PHL),$(CFG_RUNTIME))
-	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(CORELIB_GLOB))
-	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(STDLIB_GLOB))
-	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(LIBRUSTC_GLOB))
-	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(LIBSYNTAX_GLOB))
+	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(call CORELIB_GLOB,$(PHL)))
+	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(call STDLIB_GLOB,$(PHL)))
+	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(call LIBRUSTC_GLOB,$(PHL)))
+	$(Q)$(call INSTALL_LIB,$(HL),$(PHL),$(call LIBSYNTAX_GLOB,$(PHL)))
 	$(Q)$(call INSTALL,$(HL),$(PHL),$(CFG_RUSTLLVM))
 	$(Q)$(call INSTALL,$(S)/man, \
 	     $(PREFIX_ROOT)/share/man/man1,rustc.1)
@@ -86,7 +91,7 @@ install-targets: $(INSTALL_TARGET_RULES)
 
 
 HOST_LIB_FROM_HL_GLOB = \
-  $(patsubst $(HL)/%,$(PHL)/%,$(wildcard $(HL)/$(1)))
+  $(patsubst $(HL)/%,$(PHL)/%,$(1))
 
 uninstall:
 	$(Q)rm -f $(PHB)/rustc$(X)
@@ -95,10 +100,10 @@ uninstall:
 	$(Q)rm -f $(PHL)/$(CFG_RUSTLLVM)
 	$(Q)rm -f $(PHL)/$(CFG_RUNTIME)
 	$(Q)for i in \
-          $(call HOST_LIB_FROM_HL_GLOB,$(CORELIB_GLOB)) \
-          $(call HOST_LIB_FROM_HL_GLOB,$(STDLIB_GLOB)) \
-          $(call HOST_LIB_FROM_HL_GLOB,$(LIBRUSTC_GLOB)) \
-          $(call HOST_LIB_FROM_HL_GLOB,$(LIBSYNTAX_GLOB)) \
+          $(call HOST_LIB_FROM_HL_GLOB,$(call CORELIB_GLOB,$(HL))) \
+          $(call HOST_LIB_FROM_HL_GLOB,$(call STDLIB_GLOB,$(HL))) \
+          $(call HOST_LIB_FROM_HL_GLOB,$(call LIBRUSTC_GLOB,$(HL))) \
+          $(call HOST_LIB_FROM_HL_GLOB,$(call LIBSYNTAX_GLOB,$(HL))) \
         ; \
         do rm -f $$i ; \
         done
diff --git a/mk/platform.mk b/mk/platform.mk
index 43a943347a5..fdc361a8a67 100644
--- a/mk/platform.mk
+++ b/mk/platform.mk
@@ -21,7 +21,7 @@ CFG_DSYMUTIL := true
 
 ifneq ($(findstring freebsd,$(CFG_OSTYPE)),)
   CFG_LIB_NAME=lib$(1).so
-  CFG_LIB_GLOB=lib$(1)-*.so
+  CFG_LIB_GLOB=$(wildcard $(1)/lib$(2)-*.so)
   CFG_GCCISH_CFLAGS += -fPIC -I/usr/local/include
   CFG_GCCISH_LINK_FLAGS += -shared -fPIC -lpthread -lrt
   CFG_GCCISH_DEF_FLAG := -Wl,--export-dynamic,--dynamic-list=
@@ -40,7 +40,7 @@ endif
 
 ifneq ($(findstring linux,$(CFG_OSTYPE)),)
   CFG_LIB_NAME=lib$(1).so
-  CFG_LIB_GLOB=lib$(1)-*.so
+  CFG_LIB_GLOB=$(wildcard $(1)/lib$(2)-*.so)
   CFG_GCCISH_CFLAGS += -fPIC
   CFG_GCCISH_LINK_FLAGS += -shared -fPIC -ldl -lpthread -lrt
   CFG_GCCISH_DEF_FLAG := -Wl,--export-dynamic,--dynamic-list=
@@ -76,8 +76,7 @@ endif
 
 ifneq ($(findstring darwin,$(CFG_OSTYPE)),)
   CFG_LIB_NAME=lib$(1).dylib
-  CFG_LIB_GLOB=lib$(1)-*.dylib
-  CFG_LIB_DSYM_GLOB=lib$(1)-*.dylib.dSYM
+  CFG_LIB_GLOB=$(wildcard $(1)/lib$(2)-*.dylib $(1)/lib$(2)-*.dylib.dSYM)
   CFG_UNIXY := 1
   CFG_LDENV := DYLD_LIBRARY_PATH
   CFG_GCCISH_LINK_FLAGS += -dynamiclib -lpthread -framework CoreServices -Wl,-no_compact_unwind
@@ -174,7 +173,7 @@ ifdef CFG_WINDOWSY
 
   CFG_EXE_SUFFIX := .exe
   CFG_LIB_NAME=$(1).dll
-  CFG_LIB_GLOB=$(1)-*.dll
+  CFG_LIB_GLOB=$(wildcard $(1)/$(2)-*.dll)
   CFG_DEF_SUFFIX := .def
 ifdef MSYSTEM
   CFG_LDPATH :=$(CFG_LDPATH):$$PATH