kst @2.0.8_1: build bot failures

[Schamschula (Marius Schamschula)]

This morning I rev bumped a number of ports, including kst, due to a version upgrade of matio. Only, under Snow Leopard the build, actually cmake, failed:

CMake Error at CMakeLists.txt:64 (project):
  The CMAKE_CXX_COMPILER:

    clang++

  is not a full path and was not found in the PATH.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.

Under El Capitan, Mavericks, Mountain Lion, and Yosemite there is a different error:

CMake Error at /opt/local/share/cmake-3.5/Modules/FindQt4.cmake:1324 (message):
  Found unsuitable Qt version "" from NOTFOUND, this code requires Qt 4.x
Call Stack (most recent call first):
  CMakeLists.txt:198 (find_package)