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 c8e3eb44ae99e391fba19fccd46b1d7048a00a9a..fee3313430acd46991c6196976723a24937512a2 100644 (file)
--- a/src/bindings/python/bt2/Makefile.am
+++ b/src/bindings/python/bt2/Makefile.am
@@ -119,6 +119,9 @@ WARN_CFLAGS += -Wno-null-dereference
 # code.
 WARN_CFLAGS += -Wno-deprecated-declarations
 
+# Python 3.11 + gcc 12.2.0 gave warnings of this kind in Python.h.
+WARN_CFLAGS += -Wno-redundant-decls
+
 BUILD_FLAGS=CC="$(CC)" \
                CFLAGS="$(GLIB_CFLAGS) $(AM_CFLAGS) $(CFLAGS) $(WARN_CFLAGS)" \
                CPPFLAGS="$(AM_CPPFLAGS) $(CPPFLAGS) -I$(srcdir)/bt2" \
@@ -148,12 +151,25 @@ $(builddir)/bt2/native_bt.c: $(SWIG_INTERFACE_FILES)
 
 -include bt2/native_bt.d
 
+pyinstall_verbose = $(pyinstall_verbose_@AM_V@)
+pyinstall_verbose_ = $(pyinstall_verbose_@AM_DEFAULT_V@)
+pyinstall_verbose_0 = @
+
+# For Python < 3.12, force the use of distutils even if setuptools is
+# installed. For Python >= 3.12, set the externally managed option to allow
+# installation in a directory which isn't in the current PYTHONPATH.
+if HAVE_PYTHON_312_OR_GREATER
+PY_INSTALL_OPTS = --single-version-externally-managed
+else
+export SETUPTOOLS_USE_DISTUTILS=stdlib
+endif
+
 install-exec-local: build-python-bindings.stamp
-       @opts="--prefix=$(prefix) --record $(INSTALLED_FILES) --verbose --no-compile $(DISTSETUPOPTS)"; \
+       $(pyinstall_verbose)opts="--prefix=$(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