[3.14] gh-138489: Add missing build-details.json step for building wasm (GH-139302) (GH-139557)

miss-islington · HoKim98 · AA-Turner · web-flow · commit 77b4ed2a37f4 · 2025-10-07T20:35:38.000+02:00
(cherry picked from commit db53ca3) Signed-off-by: Ho Kim <ho.kim@ulagbulag.io> Co-authored-by: Ho Kim <ho.kim@ulagbulag.io> Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
diff --git a/Makefile.pre.in b/Makefile.pre.in
@@ -801,7 +801,7 @@ build_all:	check-clean-src check-app-store-compliance $(BUILDPYTHON) platform sh
 
 .PHONY: build_wasm
 build_wasm: check-clean-src $(BUILDPYTHON) platform sharedmods \
-		python-config checksharedmods
+		python-config checksharedmods build-details.json
 
 .PHONY: build_emscripten
 build_emscripten: build_wasm web_example web_example_pyrepl_jspi
diff --git a/Misc/NEWS.d/next/Build/2025-09-24-13-59-26.gh-issue-138489.1AcuZM.rst b/Misc/NEWS.d/next/Build/2025-09-24-13-59-26.gh-issue-138489.1AcuZM.rst
@@ -0,0 +1,6 @@
+When cross-compiling for WASI by ``build_wasm`` or ``build_emscripten``, the
+``build-details.json`` step is now included in the build process, just like
+with native builds.
+
+This fixes the ``libinstall`` task which requires the ``build-details.json``
+file during the process.
