adapt for older cmake versions

diff --git a/cmake/modules/FindRuby.cmake b/cmake/modules/FindRuby.cmake
index 1972b073c77413c310a48b9d90e55cbc00019dd0..17ad7ef22abf3a103524b3e6c53675ec1546cd22 100644 (file)
--- a/cmake/modules/FindRuby.cmake
+++ b/cmake/modules/FindRuby.cmake
@@ -224,7 +224,7 @@ ENDIF(WIN32)
 
 FIND_LIBRARY(RUBY_LIBRARY NAMES ${_RUBY_POSSIBLE_LIB_NAMES} HINTS ${RUBY_POSSIBLE_LIB_DIR} )
 
-INCLUDE(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+INCLUDE(FindPackageHandleStandardArgs)
 SET(_RUBY_REQUIRED_VARS RUBY_EXECUTABLE RUBY_INCLUDE_DIR RUBY_LIBRARY)
 IF(_RUBY_VERSION_SHORT_NODOT GREATER 18)
    LIST(APPEND _RUBY_REQUIRED_VARS RUBY_CONFIG_INCLUDE_DIR)