Closes: https://bugs.gentoo.org/891959
Signed-off-by: Michał Górny <mgo...@gentoo.org>
---
eclass/distutils-r1.eclass | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index 8896768d3ce9..65d48a19e73d 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -647,7 +647,13 @@ esetup.py() {
local setup_py=( setup.py )
if [[ ! -f setup.py ]]; then
- if [[ ! -f setup.cfg ]]; then
+ # The following call can succeed even if the package does not
+ # feature any setuptools configuration. In non-PEP517 mode this
+ # could lead to installing an "empty" package. In PEP517 mode,
+ # we verify the build system when invoking the backend,
+ # rendering this check redundant (and broken for projects using
+ # pyproject.toml configuration).
+ if [[ ! ${DISTUTILS_USE_PEP517} && ! -f setup.cfg ]]; then
die "${FUNCNAME}: setup.py nor setup.cfg not found"
fi
setup_py=( -c "from setuptools import setup; setup()" )
--
2.39.1
