check for bison and flex in poliqarp cmake

poliqarp-library/CMakeLists.txt

@@ -4,6 +4,9 @@ set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/CMakeScripts)
 set(pqlib_ver_major 1)
 set(pqlib_ver_minor 0)
 
+FIND_PACKAGE(BISON REQUIRED)
+FIND_PACKAGE(FLEX REQUIRED)
+
 INCLUDE (CheckIncludeFiles)
 INCLUDE (CheckLibraryExists)
 INCLUDE (CheckFunctionExists)