Index: Mk/Uses/cmake.mk
===================================================================
--- Mk/Uses/cmake.mk
+++ Mk/Uses/cmake.mk
@@ -17,6 +17,7 @@
 # testing		add the test target based on ctest
 #			Additionally, CMAKE_TESTING_ON, CMAKE_TESTING_OFF, CMAKE_TESTING_ARGS, CMAKE_TESTING_TARGET
 #			can be defined to override the default values.
+# _internal		Not to be used by any other ports than the ones created from the release-tarball of cmake
 #
 #
 # Additional variables that affect cmake behaviour:
@@ -47,7 +48,9 @@
 .if !defined(_INCLUDE_USES_CMAKE_MK)
 _INCLUDE_USES_CMAKE_MK=	yes
 
-_valid_ARGS=		insource run noninja testing
+_valid_ARGS=		insource run noninja testing _internal
+
+_CMAKE_VERSION=		3.21.0
 
 # Sanity check
 .for arg in ${cmake_ARGS}
@@ -56,6 +59,8 @@
 .    endif
 .endfor
 
+# Check whehter other flags than only '_internal' are passed (this should be equivalent to PORT = devel/cmake
+.if ${cmake_ARGS} != _internal
 CMAKE_BIN=		${LOCALBASE}/bin/cmake
 BUILD_DEPENDS+=		${CMAKE_BIN}:devel/cmake
 
@@ -158,5 +163,12 @@
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${CMAKE_TESTING_TARGET}
 .endif
+.endif
+
+.if !empty(cmake_ARGS:M_internal)
+MASTER_SITES?=	https://github.com/Kitware/CMake/releases/download/v${DISTVERSION}/ \
+		https://www.cmake.org/files/v${PORTVERSION}/
+
+.endif
 
 .endif #!defined(_INCLUDE_USES_CMAKE_MK)
Index: devel/cmake-doc/Makefile
===================================================================
--- devel/cmake-doc/Makefile
+++ devel/cmake-doc/Makefile
@@ -1,7 +1,6 @@
 PORTNAME=	cmake
-DISTVERSION=	3.21.0
+DISTVERSION=	${_CMAKE_VERSION}
 CATEGORIES=	devel
-MASTER_SITES=	https://www.cmake.org/files/v${PORTVERSION:R}/
 PKGNAMESUFFIX=	-doc
 
 MAINTAINER=	kde@FreeBSD.org
Index: devel/cmake-gui/Makefile
===================================================================
--- devel/cmake-gui/Makefile
+++ devel/cmake-gui/Makefile
@@ -1,7 +1,6 @@
 PORTNAME=	cmake
-DISTVERSION=	3.21.0
+DISTVERSION=	${_CMAKE_VERSION}
 CATEGORIES=	devel
-MASTER_SITES=	https://www.cmake.org/files/v${PORTVERSION:R}/
 PKGNAMESUFFIX=	-gui
 
 MAINTAINER=	kde@FreeBSD.org
Index: devel/cmake/Makefile
===================================================================
--- devel/cmake/Makefile
+++ devel/cmake/Makefile
@@ -1,11 +1,8 @@
 # Created by: Kyle Martin <mkm@ieee.org>
 
 PORTNAME=	cmake
-# Remember to update devel/cmake-doc and devel/cmake-gui as well.
-DISTVERSION=	3.21.0
+DISTVERSION=	${_CMAKE_VERSION}
 CATEGORIES=	devel
-MASTER_SITES=	https://github.com/Kitware/CMake/releases/download/v${DISTVERSION}/ \
-		https://www.cmake.org/files/v${PORTVERSION}/
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	Cross-platform Makefile generator
@@ -19,7 +16,7 @@
 		libuv.so:devel/libuv \
 		librhash.so:security/rhash
 
-USES=		compiler:c++11-lang ncurses
+USES=		cmake:_internal compiler:c++11-lang ncurses
 
 HAS_CONFIGURE=	yes
 CONFIGURE_ENV=	MAKE=make
Index: devel/kms-cmake-utils/Makefile
===================================================================
--- devel/kms-cmake-utils/Makefile
+++ devel/kms-cmake-utils/Makefile
@@ -14,6 +14,6 @@
 
 NO_ARCH=	yes
 
-PLIST_SUB=	CMAKE_VERSION=3.21
+PLIST_SUB=	CMAKE_VERSION=${_CMAKE_VERSION:R}
 
 .include <bsd.port.mk>