www/py-multidict uses C11 features and so needs port-gcc to build on
sparc64.

-- 
:wq Claudio

Index: Makefile
===================================================================
RCS file: /cvs/ports/www/py-multidict/Makefile,v
diff -u -p -r1.24 Makefile
--- Makefile	1 Sep 2025 17:25:10 -0000	1.24
+++ Makefile	4 Nov 2025 16:09:03 -0000
@@ -10,6 +10,9 @@ WANTLIB +=	pthread ${MODPY_WANTLIB}
 # Apache2
 PERMIT_PACKAGE=	Yes
 
+# -std=c11
+COMPILER=	base-clang ports-gcc
+
 MODULES=	lang/python
 MODPY_PYBUILD=	setuptools
 MODPY_PI=	Yes