Attempt to shift build to stage0-from-snapshots.

configure

@@ -188,6 +188,7 @@ probe_need CFG_GIT          git
 probe_need CFG_OCAMLC       ocamlc
 probe_need CFG_PERL         perl
 probe_need CFG_PYTHON       python
+probe_need CFG_CURL         curl
 
 probe CFG_LLVM_CONFIG      llvm-config
 probe CFG_VALGRIND         valgrind

mk/stage0.mk

@@ -1,9 +1,9 @@
-stage0/$(CFG_STDLIB): $(STDLIB_CRATE) $(STDLIB_INPUTS) \
-                      boot/rustboot$(X) $(MKFILES)
-	@$(call E, compile: $@)
-	$(BOOT) -shared -o $@ $<
+stage0/rustc$(X): $(S)src/snapshots.txt $(S)src/etc/get-snapshot.py $(MKFILES)
+	@$(call E, fetch: $@)
+	$(S)src/etc/get-snapshot.py
 
-stage0/rustc$(X): $(COMPILER_CRATE) $(COMPILER_INPUTS) $(BREQ)
-	@$(call E, compile: $@)
-	$(BOOT) -minimal -o $@ $<
-	$(Q)chmod 0755 $@
+# These two will be made in the process of making rustc above.
+
+stage0/glue.o: stage0/rustc$(X)
+
+stage0/$(CFG_STDLIB): stage0/rustc$(X)

mk/stage1.mk

@@ -1,4 +1,5 @@
-stage1/std.o: $(STDLIB_CRATE) $(STDLIB_INPUTS) stage0/rustc$(X) $(MKFILES)
+stage1/std.o: $(STDLIB_CRATE) $(STDLIB_INPUTS) \
+              stage0/rustc$(X) stage0/$(CFG_STDLIB) $(LREQ) $(MKFILES)
 	@$(call E, compile: $@)
 	$(STAGE0) -c --shared -o $@ $<
 
@@ -11,8 +12,7 @@ stage1/rustc.o: $(COMPILER_CRATE) $(COMPILER_INPUTS) $(SREQ0)
 	@$(call E, compile: $@)
 	$(STAGE0) -c -o $@ $<
 
-stage1/glue.o: stage0/rustc$(X) stage0/$(CFG_STDLIB) \
-                rustllvm/$(CFG_RUSTLLVM) rt/$(CFG_RUNTIME)
+stage1/glue.o: stage0/rustc$(X) stage0/$(CFG_STDLIB) $(LREQ) $(MKFILES)
 	@$(call E, generate: $@)
 	$(STAGE0) -c -o $@ --glue
 

src/etc/snapshot.py

@@ -10,7 +10,7 @@ src_dir = scrub(os.getenv("CFG_SRC_DIR"))
 if not src_dir:
   raise Exception("missing env var CFG_SRC_DIR")
 
-snapshotfile = os.path.join(src_dir, "snapshots.txt")
+snapshotfile = os.path.join(src_dir, "src", "snapshots.txt")
 download_url_base = "http://dl.rust-lang.org/stage0-snapshots"
 download_dir_base = "dl"
 download_unpack_base = os.path.join(download_dir_base, "unpack")

src/snapshots.txt

@@ -1,6 +1,7 @@
-S 2011-05-02 ed40c85
-  linux-i386 de76e0930be363af87e32ba65e3d6b1284633550
-  winnt-i386 e69c11fbc62639ac3a3eef7ea36c9ad77209e2b1
+S 2011-05-03 54bfe8e
+  linux-i386 1e831f0904acf20c24e5ee944be61b8665a45c31
+  macos-i386 eb20970d6ca784a9a7768a7eb1ce7d8f4af96fc9
+  winnt-i386 2799f8ab1fdc45a706f530e1552cbfcd07116edb
 
 S 2011-04-29 7b95b5c
   linux-i386 f0e166816ce34adc9f7202bd3cfbd80623505f28