SuperBuild: skip building executables of tiff and geotiff

SuperBuild/CMake/External_geotiff.cmake

@@ -82,8 +82,8 @@ else()
         --prefix=${SB_INSTALL_PREFIX}
         --enable-static=no
         ${GEOTIFF_SB_CONFIG}
-      BUILD_COMMAND $(MAKE)
-      INSTALL_COMMAND $(MAKE) install
+      BUILD_COMMAND $(MAKE) bin_PROGRAMS=
+      INSTALL_COMMAND $(MAKE) install bin_PROGRAMS=
       DEPENDS ${${proj}_DEPENDENCIES}
       PATCH_COMMAND ${CMAKE_COMMAND} -E copy 
         ${CMAKE_SOURCE_DIR}/patches/${proj}/configure

SuperBuild/CMake/External_tiff.cmake

@@ -85,8 +85,8 @@ else()
         --prefix=${SB_INSTALL_PREFIX}
         --enable-static=no
         ${TIFF_SB_CONFIG}
-      BUILD_COMMAND $(MAKE)
-      INSTALL_COMMAND $(MAKE) install
+      BUILD_COMMAND $(MAKE) bin_PROGRAMS=
+      INSTALL_COMMAND $(MAKE) install bin_PROGRAMS=
       DEPENDS ${${proj}_DEPENDENCIES}
       )