GH-123877: default to wasm32-wasip1 instead of wasm32-wasi to be …

…more specific

Misc/NEWS.d/next/Build/2024-11-07-11-09-31.gh-issue-123877.CVdd0b.rst

@@ -0,0 +1,3 @@
+Use ``wasm32-wasip1`` as the target triple for WASI instead of
+``wasm32-wasi``. The latter will eventually be reclaimed for WASI 1.0 while
+CPython currently only supports WASI preview1.

Tools/wasm/wasi.py

@@ -346,7 +346,7 @@ def main():
                              "(default designed for wasmtime 14 or newer: "
                                 f"`{default_host_runner}`)")
     for subcommand in build, configure_host, make_host:
-        subcommand.add_argument("--host-triple", action="store", default="wasm32-wasi",
+        subcommand.add_argument("--host-triple", action="store", default="wasm32-wasip1",
                         help="The target triple for the WASI host build")
 
     context = parser.parse_args()

configure.ac

@@ -336,7 +336,7 @@ then
 	*-*-emscripten)
 	    ac_sys_system=Emscripten
 	    ;;
-	*-*-wasi)
+	*-*-wasi*)
 	    ac_sys_system=WASI
 	    ;;
 	*)
@@ -1201,7 +1201,7 @@ AS_CASE([$host/$ac_cv_cc_name],
   [aarch64-*-linux-gnu/gcc],         [PY_SUPPORT_TIER=2], dnl Linux ARM64, glibc, gcc+clang
   [aarch64-*-linux-gnu/clang],       [PY_SUPPORT_TIER=2],
   [powerpc64le-*-linux-gnu/gcc],     [PY_SUPPORT_TIER=2], dnl Linux on PPC64 little endian, glibc, gcc
-  [wasm32-unknown-wasi/clang],       [PY_SUPPORT_TIER=2], dnl WebAssembly System Interface, clang
+  [wasm32-unknown-wasip1/clang],       [PY_SUPPORT_TIER=2], dnl WebAssembly System Interface preview1, clang
   [x86_64-*-linux-gnu/clang],        [PY_SUPPORT_TIER=2], dnl Linux on AMD64, any vendor, glibc, clang
 
   [aarch64-pc-windows-msvc/msvc],    [PY_SUPPORT_TIER=3], dnl Windows ARM64, MSVC
@@ -1647,7 +1647,7 @@ then
     dnl TODO: support other WASI runtimes
     dnl wasmtime starts the process with "/" as CWD. For OOT builds add the
     dnl directory containing _sysconfigdata to PYTHONPATH.
-    [WASI/*], [HOSTRUNNER='wasmtime run --wasm max-wasm-stack=16777216 --wasi preview2 --env PYTHONPATH=/$(shell realpath --relative-to $(abs_srcdir) $(abs_builddir))/$(shell cat pybuilddir.txt):/Lib --dir $(srcdir)::/'],
+    [WASI/*], [HOSTRUNNER='wasmtime run --wasm max-wasm-stack=16777216 --wasi preview2=n --env PYTHONPATH=/$(shell realpath --relative-to $(abs_srcdir) $(abs_builddir))/$(shell cat pybuilddir.txt):/Lib --dir $(srcdir)::/'],
     [HOSTRUNNER='']
   )
 fi