diff --git a/cad/brlcad/Makefile b/cad/brlcad/Makefile
index 414f0a16ec35..dd926475ec3a 100644
--- a/cad/brlcad/Makefile
+++ b/cad/brlcad/Makefile
@@ -1,65 +1,65 @@
 PORTNAME=	brlcad
 PORTVERSION=	7.32.6
+PORTREVISION=	1
 CATEGORIES=	cad
 MASTER_SITES=	https://github.com/BRL-CAD/brlcad/releases/download/rel-${PORTVERSION:S/./-/g}/
 
 MAINTAINER=	ports@freebsd.org
 COMMENT=	CSG modelling system from the US Ballistic Research Laboratory
 WWW=		https://brlcad.org/
 
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	xsltproc:textproc/libxslt
 LIB_DEPENDS=	liblz4.so:archivers/liblz4 \
 		libdrm.so:graphics/libdrm \
 		libpng.so:graphics/png \
 		libfreetype.so:print/freetype2 \
 		libexpat.so:textproc/expat2 \
 		libfontconfig.so:x11-fonts/fontconfig
 
 USES=		bison:alias cmake:insource cpe gl pkgconfig python:env \
 		tar:bzip2 tk xorg
 USE_GL=		gl glu
 USE_LDCONFIG=	yes
 USE_XORG=	ice sm x11 xau xcb xdamage xdmcp xext xfixes xft xi \
 		xorgproto xrender xscrnsaver xt xxf86vm
 
 CMAKE_OFF=	BRLCAD_ENABLE_STRICT
 CMAKE_INSTALL_PREFIX=	${PREFIX}/${PORTNAME}
-CXXFLAGS_powerpc64=	-mvsx
 
 TEST_TARGET=	check
 
 CONFLICTS_INSTALL=	py[23][0-9]-epsilon
 
 MANDIRS=	${PREFIX}/${PORTNAME}/share/man
 NO_MTREE=	yes
 
 WRKSRC=${WRKDIR}/${PORTNAME}-${PORTVERSION}
 
 PLIST_SUB+=	PORTVERSION=${PORTVERSION}
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD
 USES+=	llvm:max=14
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e 's+-exact Tcl 8\.6\.10+Tcl 8.6+' \
 		${WRKSRC}/src/other/tcl/library/init.tcl
 
 pre-install:
 	${CP} ${FILESDIR}/mged.sh ${WRKSRC}
 	${REINPLACE_CMD} -e 's+%%BRLCAD_ROOT%%+${PREFIX}/${PORTNAME}+g;' ${WRKSRC}/mged.sh
 
 # note that installing outside of PREFIX wigs out package stuff... :/
 post-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_SCRIPT} ${WRKSRC}/mged.sh ${STAGEDIR}${PREFIX}/bin/mged.sh
 
 regression-test: build
 	@(cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${MAKE_CMD} test)
 
 .include <bsd.port.mk>
diff --git a/cad/brlcad/files/patch-src_other_Eigen_Eigen_Core b/cad/brlcad/files/patch-src_other_Eigen_Eigen_Core
new file mode 100644
index 000000000000..cdc51eddf4dd
--- /dev/null
+++ b/cad/brlcad/files/patch-src_other_Eigen_Eigen_Core
@@ -0,0 +1,11 @@
+--- src/other/Eigen/Eigen/Core.orig	2022-05-09 03:00:08 UTC
++++ src/other/Eigen/Eigen/Core	2026-09-02 17:05:45 UTC
+@@ -346,7 +346,7 @@
+ #include "src/Core/CoreIterators.h"
+ #include "src/Core/ConditionEstimator.h"
+ 
+-#if defined(EIGEN_VECTORIZE_ALTIVEC) || defined(EIGEN_VECTORIZE_VSX)
++#if defined(EIGEN_VECTORIZE_VSX)
+   #include "src/Core/arch/AltiVec/MatrixProduct.h"
+ #elif defined EIGEN_VECTORIZE_NEON
+   #include "src/Core/arch/NEON/GeneralBlockPanelKernel.h"
diff --git a/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_MathFunctions.h b/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_MathFunctions.h
new file mode 100644
index 000000000000..bb919f464cc1
--- /dev/null
+++ b/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_MathFunctions.h
@@ -0,0 +1,23 @@
+--- src/other/Eigen/Eigen/src/Core/arch/AltiVec/MathFunctions.h.orig	2022-05-09 03:00:08 UTC
++++ src/other/Eigen/Eigen/src/Core/arch/AltiVec/MathFunctions.h	2026-09-02 17:05:45 UTC
+@@ -76,6 +76,20 @@
+ }
+ #endif
+ 
++#ifndef __VSX__
++template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_UNUSED
++Packet4f psqrt<Packet4f>(const Packet4f& x)
++{
++  EIGEN_ALIGN16 float a[4];
++  pstore(a, x);
++  a[0] = numext::sqrt(a[0]);
++  a[1] = numext::sqrt(a[1]);
++  a[2] = numext::sqrt(a[2]);
++  a[3] = numext::sqrt(a[3]);
++  return pload<Packet4f>(a);
++}
++#endif
++
+ // Hyperbolic Tangent function.
+ template <>
+ EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_UNUSED Packet4f
diff --git a/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_PacketMath.h b/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_PacketMath.h
new file mode 100644
index 000000000000..a1a2cea58b39
--- /dev/null
+++ b/cad/brlcad/files/patch-src_other_Eigen_Eigen_src_Core_arch_AltiVec_PacketMath.h
@@ -0,0 +1,15 @@
+--- src/other/Eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h.orig	2022-05-09 03:00:08 UTC
++++ src/other/Eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h	2026-09-02 17:05:45 UTC
+@@ -1340,9 +1340,11 @@
+ template<> EIGEN_STRONG_INLINE Packet8bf psub<Packet8bf>(const Packet8bf& a, const Packet8bf& b) {
+   BF16_TO_F32_BINARY_OP_WRAPPER(psub<Packet4f>, a, b);
+ }
++
++template<> Packet4f psqrt<Packet4f>(const Packet4f& x);
+ 
+ template<> EIGEN_STRONG_INLINE Packet8bf psqrt<Packet8bf> (const Packet8bf& a){
+-  BF16_TO_F32_UNARY_OP_WRAPPER(vec_sqrt, a);
++  BF16_TO_F32_UNARY_OP_WRAPPER(psqrt<Packet4f>, a);
+ }
+ template<> EIGEN_STRONG_INLINE Packet8bf prsqrt<Packet8bf> (const Packet8bf& a){
+   BF16_TO_F32_UNARY_OP_WRAPPER(prsqrt<Packet4f>, a);