diff --git a/cad/openvsp/Makefile b/cad/openvsp/Makefile
index 2211d9c82f7d..23ab2cfad89b 100644
--- a/cad/openvsp/Makefile
+++ b/cad/openvsp/Makefile
@@ -1,89 +1,89 @@
 PORTNAME=	openvsp
 DISTVERSIONPREFIX=	${GH_PROJECT}_
 DISTVERSION=	3.50.1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	cad
 
 MAINTAINER=	fernape@FreeBSD.org
 COMMENT=	Create a 3D model of an aircraft defined by engineering parameters
 WWW=		http://www.openvsp.org/
 
 LICENSE=	NOSA13
 LICENSE_NAME=	NASA Open Source Agreement version 1.3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
 BROKEN_aarch64=		fails to compile: invokes x86 asm
 
 BUILD_DEPENDS=	${LOCALBASE}/lib/libopenNURBS.a:graphics/opennurbs \
 		${LOCALBASE}/include/glm/glm.hpp:math/glm \
 		pandoc:textproc/hs-pandoc
 LIB_DEPENDS=	libdrm.so:graphics/libdrm \
 		libpng.so:graphics/png \
 		libfreetype.so:print/freetype2 \
 		libexpat.so:textproc/expat2 \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libfltk.so:x11-toolkits/fltk \
 		libcpptest.so:devel/cpptest
 
 USES=		cmake:noninja localbase \
 		gl gnome jpeg xorg
 
 .if !exists(/usr/include/omp.h)
 CXXFLAGS+=	-fpermissive
 USES+=		compiler:gcc-c++11-lib
 .else
 USES+=		compiler:c++11-lang 
 .endif
 USE_GITHUB=	yes
 GH_ACCOUNT=	${GH_PROJECT}
 GH_PROJECT=	OpenVSP
 
 USE_GL=		gl glew glu
 USE_GNOME=	libxml2
 USE_XORG=	ice sm x11 xau xcb xcursor xdamage xdmcp xext xfixes xft \
 		xinerama xrender xxf86vm
 
 CMAKE_ARGS=	-DVSP_USE_SYSTEM_CMINPACK:BOOLEAN=yes \
 		-DVSP_USE_SYSTEM_CPPTEST:BOOLEAN=yes \
 		-DVSP_USE_SYSTEM_CODEELI:BOOLEAN=no \
 		-DVSP_USE_SYSTEM_EIGEN:BOOLEAN=no \
 		-DVSP_USE_SYSTEM_LIBXML2:BOOLEAN=yes \
 		-DVSP_USE_SYSTEM_FLTK:boolean=no \
 		-DCMAKE_PREFIX_PATH=/usr/local \
 		-DVSP_USE_SYSTEM_CMINPACK:boolean=no \
 		-DVSP_USE_SYSTEM_GLM:BOOLEAN=yes \
 		-DVSP_USE_SYSTEM_GLEW:BOOLEAN=yes
 CMAKE_INSTALL_PREFIX=	${STAGEDIR}${PREFIX}
 CMAKE_SOURCE_PATH=	${WRKSRC}/SuperProject
 
 BUILD_PREFIX=	OpenVSP-prefix/src/OpenVSP-build/_CPack_Packages/FreeBSD/ZIP/OpenVSP-${DISTVERSION}-FreeBSD
 
 MAKE_JOBS_UNSAFE=yes
 
 CXXFLAGS_powerpc64=	-mvsx
 
 BINARY_ALIAS=	fltk::fluid=fluid
 
 post-patch:
 	@${REINPLACE_CMD} 's/fltk::gl/fltk_gl/' ${WRKSRC}/src/CMakeLists.txt \
 		${WRKSRC}/src/vsp_aero/Viewer/CMakeLists.txt
 
 do-install:
 	@${MKDIR} ${STAGEDIR}${DATADIR}
 	${INSTALL_DATA} ${BUILD_WRKSRC}/${BUILD_PREFIX}/vspIcon.png ${STAGEDIR}${DATADIR}
 	${RM} ${STAGEDIR}${PREFIX}/vspIcon.png ${BUILD_WRKSRC}/${BUILD_PREFIX}/vspIcon.png
 .for f in vsp vspaero vspaero_opt vsploads vspscript vspviewer
 	${INSTALL_PROGRAM} ${BUILD_WRKSRC}/${BUILD_PREFIX}/${f} ${STAGEDIR}${PREFIX}/bin
 	${RM} ${STAGEDIR}${PREFIX}/${f}
 .endfor
 .for d in CustomScripts airfoil matlab scripts textures
 	(cd ${BUILD_WRKSRC}/${BUILD_PREFIX}/${d} && ${COPYTREE_SHARE} . ${STAGEDIR}${DATADIR})
 	${RM} -rf ${STAGEDIR}${PREFIX}/${d}
 .endfor
 	${CP} ${BUILD_WRKSRC}/${BUILD_PREFIX}/LICENSE ${STAGEDIR}${DATADIR}
 	${CP} ${BUILD_WRKSRC}/${BUILD_PREFIX}/README.md ${STAGEDIR}${DATADIR}
 	${RM} ${STAGEDIR}${PREFIX}/LICENSE
 	${RM} ${STAGEDIR}${PREFIX}/README.md
 
 .include <bsd.port.mk>
diff --git a/cad/openvsp/files/patch-src_external_GeometricTools_GeometricTools_GTE_Mathematics_BSRational.h b/cad/openvsp/files/patch-src_external_GeometricTools_GeometricTools_GTE_Mathematics_BSRational.h
new file mode 100644
index 000000000000..f34af020d7ad
--- /dev/null
+++ b/cad/openvsp/files/patch-src_external_GeometricTools_GeometricTools_GTE_Mathematics_BSRational.h
@@ -0,0 +1,13 @@
+--- src/external/GeometricTools/GeometricTools/GTE/Mathematics/BSRational.h.orig	2026-05-09 14:56:37 UTC
++++ src/external/GeometricTools/GeometricTools/GTE/Mathematics/BSRational.h
+@@ -993,10 +993,6 @@ namespace std
+     {
+         return (gte::BSRational<UInteger>)std::tanh((double)x);
+     }
+-
+-    // Type trait that says BSRational is a signed type.
+-    template <typename UInteger>
+-    struct is_signed<gte::BSRational<UInteger>> : true_type {};
+ }
+ 
+ namespace gte