[gentoo-dev] [PATCH 1/2] distutils-r1.eclass: workaround cython bug for Modern C

[Sam James <sam@gentoo.org>]

Pass -Wno-error=incompatible-pointer-types for now to avoid many dupes for
the same cython bug.

Bug: https://github.com/cython/cython/issues/2747
Bug: https://bugs.gentoo.org/918983
Bug: https://bugs.gentoo.org/919261
Bug: https://bugs.gentoo.org/919277
Signed-off-by: Sam James <sam@gentoo.org>
---
 eclass/distutils-r1.eclass | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index 0a7b18e4a1a4f..6d2640b295983 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -1806,6 +1806,11 @@ distutils-r1_run_phase() {
 	tc-export AR CC CPP CXX
 
 	if [[ ${DISTUTILS_EXT} ]]; then
+		if [[ ${BDEPEND} == *dev-python/cython* ]] ; then
+			# Workaround for https://github.com/cython/cython/issues/2747 (bug #918983)
+			local -x CFLAGS="${CFLAGS} $(test-flags-CC -Wno-error=incompatible-pointer-types)"
+		fi
+
 		local -x CPPFLAGS="${CPPFLAGS} $(usex debug '-UNDEBUG' '-DNDEBUG')"
 		# always generate .c files from .pyx files to ensure we get latest
 		# bug fixes from Cython (this works only when setup.py is using
-- 
2.43.0