diff --git a/Makefile b/Makefile
index 882beb6172f8f..171409b4970ea 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ all: debug release
 # sort is used to remove potential duplicates
 DIRS := $(sort $(build_bindir) $(build_depsbindir) $(build_libdir) $(build_private_libdir) $(build_libexecdir) $(build_includedir) $(build_includedir)/julia $(build_sysconfdir)/julia $(build_datarootdir)/julia $(build_datarootdir)/julia/stdlib $(build_man1dir))
 ifneq ($(BUILDROOT),$(JULIAHOME))
-BUILDDIRS := $(BUILDROOT) $(addprefix $(BUILDROOT)/,base src ui doc deps test test/embedding test/llvmpasses)
+BUILDDIRS := $(BUILDROOT) $(addprefix $(BUILDROOT)/,base src ui doc deps stdlib test test/embedding test/llvmpasses)
 BUILDDIRMAKE := $(addsuffix /Makefile,$(BUILDDIRS))
 DIRS := $(DIRS) $(BUILDDIRS)
 $(BUILDDIRMAKE): | $(BUILDDIRS)
@@ -39,9 +39,6 @@ endif
 $(foreach dir,$(DIRS),$(eval $(call dir_target,$(dir))))
 $(foreach link,base $(JULIAHOME)/test,$(eval $(call symlink_target,$(link),$(build_datarootdir)/julia,$(notdir $(link)))))
 
-build_defaultpkgdir = $(build_datarootdir)/julia/stdlib/$(shell echo $(VERSDIR))
-$(eval $(call symlink_target,$(JULIAHOME)/stdlib,$(build_datarootdir)/julia/stdlib,$(shell echo $(VERSDIR))))
-
 julia_flisp.boot.inc.phony: julia-deps
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/src julia_flisp.boot.inc.phony
 
@@ -56,9 +53,12 @@ ifndef JULIA_VAGRANT_BUILD
 endif
 endif
 
-julia-deps: | $(DIRS) $(build_datarootdir)/julia/base $(build_datarootdir)/julia/test $(build_defaultpkgdir)
+julia-deps: | $(DIRS) $(build_datarootdir)/julia/base $(build_datarootdir)/julia/test
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/deps
 
+julia-stdlib: | $(DIRS)
+	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/stdlib
+
 julia-base: julia-deps $(build_sysconfdir)/julia/startup.jl $(build_man1dir)/julia.1 $(build_datarootdir)/julia/julia-config.jl
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/base
 
@@ -74,10 +74,10 @@ julia-ui-release julia-ui-debug : julia-ui-% : julia-src-%
 julia-sysimg : julia-base julia-ui-$(JULIA_BUILD_MODE)
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT) $(build_private_libdir)/sys.ji JULIA_EXECUTABLE='$(JULIA_EXECUTABLE)'
 
-julia-sysimg-release : julia-sysimg julia-ui-release
+julia-sysimg-release : julia-stdlib julia-sysimg julia-ui-release
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT) $(build_private_libdir)/sys.$(SHLIB_EXT)
 
-julia-sysimg-debug : julia-sysimg julia-ui-debug
+julia-sysimg-debug : julia-stdlib julia-sysimg julia-ui-debug
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT) $(build_private_libdir)/sys-debug.$(SHLIB_EXT)
 
 julia-debug julia-release : julia-% : julia-ui-% julia-sysimg-% julia-symlink julia-libccalltest julia-base-cache
@@ -527,10 +527,11 @@ source-dist:
 full-source-dist: light-source-dist.tmp
 	# Get all the dependencies downloaded
 	@$(MAKE) -C deps getall NO_GIT=1
+	@$(MAKE) -C stdlib getall
 
 	# Create file full-source-dist.tmp to hold all the filenames that go into the tarball
 	cp light-source-dist.tmp full-source-dist.tmp
-	-ls deps/srccache/*.tar.gz deps/srccache/*.tar.bz2 deps/srccache/*.tar.xz deps/srccache/*.tgz deps/srccache/*.zip deps/srccache/*.pem >> full-source-dist.tmp
+	-ls deps/srccache/*.tar.gz deps/srccache/*.tar.bz2 deps/srccache/*.tar.xz deps/srccache/*.tgz deps/srccache/*.zip deps/srccache/*.pem stdlib/srccache/*.tar.gz >> full-source-dist.tmp
 
 	# Prefix everything with the current directory name (usually "julia"), then create tarball
 	DIRNAME=$$(basename $$(pwd)); \
@@ -543,6 +544,7 @@ clean: | $(CLEAN_TARGETS)
 	@-$(MAKE) -C $(BUILDROOT)/src clean
 	@-$(MAKE) -C $(BUILDROOT)/ui clean
 	@-$(MAKE) -C $(BUILDROOT)/test clean
+	@-$(MAKE) -C $(BUILDROOT)/stdlib clean-pkg
 	-rm -f $(BUILDROOT)/julia
 	-rm -f $(BUILDROOT)/*.tar.gz
 	-rm -f $(build_depsbindir)/stringreplace \
diff --git a/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/md5 b/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/md5
new file mode 100644
index 0000000000000..6a2f75aeb009e
--- /dev/null
+++ b/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/md5
@@ -0,0 +1 @@
+df1b07419d50db883998ca9bb8fc7ea1
diff --git a/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/sha512 b/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/sha512
new file mode 100644
index 0000000000000..c750de4766759
--- /dev/null
+++ b/deps/checksums/Pkg-ed5908796128c6227dcddefa9ec06a47066b8b01.tar.gz/sha512
@@ -0,0 +1 @@
+c2a1427d3d8fec20746676133b41db6a082e9b3fc7c1941a43e0398cfe8b33d1547ab58d89391a99b26816909e77258d6331894295d5c6084997da8104f9ac7b
diff --git a/stdlib/.gitignore b/stdlib/.gitignore
new file mode 100644
index 0000000000000..d8ce799be4bb9
--- /dev/null
+++ b/stdlib/.gitignore
@@ -0,0 +1,2 @@
+/srccache
+/Pkg
diff --git a/stdlib/Makefile b/stdlib/Makefile
new file mode 100644
index 0000000000000..3c44b191fc124
--- /dev/null
+++ b/stdlib/Makefile
@@ -0,0 +1,46 @@
+default: install
+
+.PHONY: default extract-pkg get-pkg clean-pkg getall install
+
+SRCDIR := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+JULIAHOME := $(abspath $(SRCDIR)/..)
+SRCCACHE := $(abspath $(SRCDIR)/srccache)
+BUILDDIR := $(SRCCACHE)
+
+include $(JULIAHOME)/Make.inc
+include $(JULIAHOME)/deps/tools/common.mk
+include $(JULIAHOME)/deps/tools/git-external.mk
+
+VERSDIR := v`cut -d. -f1-2 < $(JULIAHOME)/VERSION`
+
+# Download and extract Pkg
+PKG := https://github.com/JuliaLang/Pkg.jl
+PKG_TAR_URL = https://api.github.com/repos/JuliaLang/Pkg.jl/tarball/$1
+$(eval $(call git-external,Pkg,PKG,,,$(BUILDDIR)))
+
+extract-pkg: $(BUILDDIR)/$(PKG_SRC_DIR)/source-extracted
+Pkg: $(BUILDDIR)/$(PKG_SRC_DIR)/source-extracted
+	rm -rf $@
+	cp -r $(BUILDDIR)/$(PKG_SRC_DIR) $@
+get-pkg: Pkg
+clean-pkg:
+	-rm -rf Pkg
+	-rm -rf $(BUILDDIR)/$(PKG_SRC_DIR)
+
+# Generate symlinks to all stdlibs from usr/share/julia/stdlib/vX.Y/
+STDLIBS = Base64 CRC32c Dates DelimitedFiles Distributed FileWatching \
+          Future InteractiveUtils Libdl LibGit2 LinearAlgebra Logging \
+          Markdown Mmap Printf Profile Random REPL Serialization SHA \
+          SharedArrays Sockets SparseArrays Statistics SuiteSparse Test Unicode UUIDs
+
+$(foreach pkg, $(STDLIBS), $(eval $(call symlink_target,$(JULIAHOME)/stdlib/$(pkg),$(build_datarootdir)/julia/stdlib/$(shell echo $(VERSDIR)),$(pkg))))
+$(eval $(call symlink_target,$(BUILDROOT)/stdlib/Pkg,$(build_datarootdir)/julia/stdlib/$(shell echo $(VERSDIR)),Pkg))
+
+$(build_datarootdir)/julia/stdlib/$(shell echo $(VERSDIR)):
+	mkdir -p $@
+
+STDLIBS_LINK_TARGETS = $(addprefix $(build_datarootdir)/julia/stdlib/$(shell echo $(VERSDIR))/, $(STDLIBS) Pkg)
+
+install: Pkg $(STDLIBS_LINK_TARGETS)
+getall: get-pkg
+
diff --git a/stdlib/Pkg.version b/stdlib/Pkg.version
new file mode 100644
index 0000000000000..a7733e05b8262
--- /dev/null
+++ b/stdlib/Pkg.version
@@ -0,0 +1,2 @@
+PKG_BRANCH = master
+PKG_SHA1 = ed5908796128c6227dcddefa9ec06a47066b8b01
diff --git a/test/choosetests.jl b/test/choosetests.jl
index 2f9c5cd000bf2..e0eba43004ae9 100644
--- a/test/choosetests.jl
+++ b/test/choosetests.jl
@@ -3,7 +3,7 @@
 using Random, Sockets
 
 const STDLIB_DIR = joinpath(Sys.BINDIR, "..", "share", "julia", "stdlib", "v$(VERSION.major).$(VERSION.minor)")
-const STDLIBS = filter!(x -> isdir(joinpath(STDLIB_DIR, x)), readdir(STDLIB_DIR))
+const STDLIBS = filter!(x -> isfile(joinpath(STDLIB_DIR, x, "src", "$(x).jl")), readdir(STDLIB_DIR))
 
 """