test: update location of builtins library

`wasi-sdk` now packages the Clang builtins in a different directory than
it used to.

.github/workflows/main.yml

@@ -125,9 +125,9 @@ jobs:
         export WASIP1_DIR=$(realpath $($CLANG_DIR/clang -print-resource-dir)/lib/wasip1/)
         export WASIP2_DIR=$(realpath $($CLANG_DIR/clang -print-resource-dir)/lib/wasip2/)
         mkdir -p $WASI_DIR $WASIP1_DIR $WASIP2_DIR
-        cp download/lib/wasi/libclang_rt.builtins-wasm32.a $WASI_DIR
-        cp download/lib/wasi/libclang_rt.builtins-wasm32.a $WASIP1_DIR
-        cp download/lib/wasi/libclang_rt.builtins-wasm32.a $WASIP2_DIR
+        cp download/libclang_rt.builtins-wasm32.a $WASI_DIR
+        cp download/libclang_rt.builtins-wasm32.a $WASIP1_DIR
+        cp download/libclang_rt.builtins-wasm32.a $WASIP2_DIR
         TARGET_TRIPLE=wasm32-wasi make test
         rm -r build
         TARGET_TRIPLE=wasm32-wasip1 make test

test/Makefile

@@ -23,7 +23,7 @@ TARGET_TRIPLE ?= wasm32-wasi
 LIBC_TEST_URL ?= https://github.com/bytecodealliance/libc-test
 LIBC_TEST = $(DOWNDIR)/libc-test
 LIBRT_URL ?= https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-24/libclang_rt.builtins-wasm32-wasi-24.0.tar.gz
-LIBRT = $(DOWNDIR)/lib/wasi/libclang_rt.builtins-wasm32.a
+LIBRT = $(DOWNDIR)/libclang_rt.builtins-wasm32.a
 WASMTIME_URL ?= https://github.com/bytecodealliance/wasmtime/releases/download/v26.0.1/wasmtime-v26.0.1-x86_64-linux.tar.xz
 WASMTIME = $(DOWNDIR)/$(shell basename $(WASMTIME_URL) .tar.xz)/wasmtime
 WASM_TOOLS_URL ?= https://github.com/bytecodealliance/wasm-tools/releases/download/wasm-tools-1.220.0/wasm-tools-1.220.0-x86_64-linux.tar.gz
@@ -44,10 +44,11 @@ $(DOWNDIR):
 $(LIBC_TEST): | $(DOWNDIR)
 	git clone --depth 1 $(LIBC_TEST_URL) $@
 
-# TODO install target to place into...
+# TODO: add install target to copy builtins library directly into a Clang
+# installation.
 $(LIBRT): | $(DOWNDIR)
 	wget --no-clobber --directory-prefix=$(DOWNDIR) $(LIBRT_URL)
-	tar --extract --file=$(DOWNDIR)/$(shell basename $(LIBRT_URL)) --directory=$(DOWNDIR)/
+	tar --extract --file=$(DOWNDIR)/$(shell basename $(LIBRT_URL)) --strip-components=1 --directory=$(DOWNDIR)/
 
 $(WASMTIME): | $(DOWNDIR)
 	wget --no-clobber --directory-prefix=$(DOWNDIR) $(WASMTIME_URL)
@@ -61,7 +62,7 @@ $(ADAPTER): | $(DOWNDIR)
 	wget --no-clobber --directory-prefix=$(DOWNDIR) $(ADAPTER_URL)
 
 clean::
-	rm -rf download
+	rm -rf $(DOWNDIR)
 
 ##### BUILD ####################################################################
 
@@ -145,7 +146,7 @@ endif
 # due to a missing `libclang_rt.builtins-wasm32.a` in the Clang lib directory.
 # This location is system-dependent, but could be fixed by something like:
 #  $ sudo mkdir /usr/lib64/clang/14.0.5/lib/wasi
-#  $ sudo cp download/lib/wasi/libclang_rt.builtins-wasm32.a /usr/lib64/clang/14.0.5/lib/wasi/
+#  $ sudo cp download/libclang_rt.builtins-wasm32.a /usr/lib64/clang/14.0.5/lib/wasi/
 build: download $(WASMS)
 
 $(WASMS): | $(OBJDIRS)