Revert this part as it doesn't use ecm

thirdparty/discount-2.2.6-patched/cmake/CMakeLists.txt

@@ -176,22 +176,22 @@ if(${PROJECT_NAME}_MAKE_INSTALL)
     include(GNUInstallDirs)
     if(NOT DEFINED CMAKE_INSTALL_CMAKEDIR)
         set(CMAKE_INSTALL_CMAKEDIR
-            "${KDE_INSTALL_LIBDIR}/cmake/${_PACKAGE_NAME}"
+            "${CMAKE_INSTALL_LIBDIR}/cmake/${_PACKAGE_NAME}"
             CACHE STRING "CMake packages")
     endif()
     install(FILES "${_ROOT}/mkdio.h"
-        DESTINATION "${KDE_INSTALL_INCLUDEDIR}")
+        DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
     target_include_directories(libmarkdown INTERFACE
-      $<INSTALL_INTERFACE:${KDE_INSTALL_INCLUDEDIR}>
+      $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
     )
     set(_TARGETS libmarkdown markdown)
     if(${PROJECT_NAME}_INSTALL_SAMPLES)
         list(APPEND _TARGETS mkd2html makepage)
     endif()
     install(TARGETS ${_TARGETS} EXPORT ${_PACKAGE_NAME}-targets
-        RUNTIME DESTINATION "${KDE_INSTALL_BINDIR}"
-        LIBRARY DESTINATION "${KDE_INSTALL_LIBDIR}"
-        ARCHIVE DESTINATION "${KDE_INSTALL_LIBDIR}")
+        RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}")
     install(EXPORT ${_PACKAGE_NAME}-targets
         NAMESPACE ${_PACKAGE_NAME}::
         DESTINATION "${CMAKE_INSTALL_CMAKEDIR}")