math/py-fastcluster: fix build on powerpc* with LLVM 14 by forcing 15

Assertion failed: ((CGF.CurFuncDecl == nullptr || CGF.Builder.getIsFPConstrained() || isa<CXXConstructorDecl>(CGF.CurFuncDecl) || isa<CXXDestructorDecl>(CGF.CurFuncDecl) || (NewExceptionBehavior == llvm::fp::ebIgnore && NewRoundingBehavior == llvm::RoundingMode::NearestTiesToEven)) && "FPConstrained should be enabled on entire function"), function ConstructorHelper, file /usr/local/poudriere/jails/main-powerpc64/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp, line 163.

math/py-fastcluster/Makefile

@@ -14,10 +14,19 @@ LICENSE_FILE=	${WRKSRC}/COPYING.txt
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>=0,1:math/py-numpy@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>=1.9,1:math/py-numpy@${PY_FLAVOR}
 
-USES=		python:3.7+
+USES=		compiler python:3.7+
 USE_PYTHON=	autoplist concurrent distutils
 
+.include <bsd.port.pre.mk>
+
+.if ${ARCH:Mpowerpc*} && ${COMPILER_VERSION} == 140
+BUILD_DEPENDS+=	clang15:devel/llvm15
+CPP=            clang-cpp15
+CC=             clang15
+CXX=            clang++15
+.endif
+
 post-install:
 	${FIND} ${STAGEDIR}${PYTHON_SITELIBDIR} -name '*.so' -exec ${STRIP_CMD} {} +
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>