fix: python bindings: use stdlib distutils when setuptools is installed

[babeltrace.git] / src / bindings / python / bt2 / Makefile.am

diff --git a/src/bindings/python/bt2/Makefile.am b/src/bindings/python/bt2/Makefile.am
index 6b31a743391c52eae99f471cf9b3bb509c84fbb4..fee3313430acd46991c6196976723a24937512a2 100644 (file)
--- a/src/bindings/python/bt2/Makefile.am
+++ b/src/bindings/python/bt2/Makefile.am
@@ -155,12 +155,21 @@ pyinstall_verbose = $(pyinstall_verbose_@AM_V@)
 pyinstall_verbose_ = $(pyinstall_verbose_@AM_DEFAULT_V@)
 pyinstall_verbose_0 = @
 
+# For Python < 3.12, force the use of distutils even if setuptools is
+# installed. For Python >= 3.12, set the externally managed option to allow
+# installation in a directory which isn't in the current PYTHONPATH.
+if HAVE_PYTHON_312_OR_GREATER
+PY_INSTALL_OPTS = --single-version-externally-managed
+else
+export SETUPTOOLS_USE_DISTUTILS=stdlib
+endif
+
 install-exec-local: build-python-bindings.stamp
        $(pyinstall_verbose)opts="--prefix=$(prefix) --exec-prefix=$(exec_prefix) --record $(INSTALLED_FILES) --verbose --no-compile $(DISTSETUPOPTS)"; \
        if [ "$(DESTDIR)" != "" ]; then \
                opts="$$opts --root=$(DESTDIR)"; \
        fi; \
-       $(PYTHON) $(builddir)/setup.py install $$opts;
+       $(PYTHON) $(builddir)/setup.py install $(PY_INSTALL_OPTS) $$opts;
 
 clean-local:
        rm -rf $(builddir)/build