MDEV-4425 Regexp enhancements

Mark a few PCRE CMake variables as advanced,
so the are not presented in cmake-gui by default.

pcre/CMakeLists.txt

@@ -444,6 +444,19 @@ echo RunTest.bat tests successfully completed
 
 ENDIF(PCRE_BUILD_TESTS)
 
+MARK_AS_ADVANCED(PCREGREP_BUFSIZE)
+MARK_AS_ADVANCED(PCRE_BUILD_PCREGREP)
+MARK_AS_ADVANCED(PCRE_BUILD_TESTS)
+MARK_AS_ADVANCED(PCRE_LINK_SIZE)
+MARK_AS_ADVANCED(PCRE_MATCH_LIMIT)
+MARK_AS_ADVANCED(PCRE_MATCH_LIMIT_RECURSION)
+MARK_AS_ADVANCED(PCRE_NEWLINE)
+MARK_AS_ADVANCED(PCRE_NO_RECURSE)
+MARK_AS_ADVANCED(PCRE_POSIX_MALLOC_THRESHOLD)
+MARK_AS_ADVANCED(PCRE_SUPPORT_BSR_ANYCRLF)
+MARK_AS_ADVANCED(PCRE_SUPPORT_UNICODE_PROPERTIES)
+
+
 IF(PCRE_SHOW_REPORT)
   STRING(TOUPPER "${CMAKE_BUILD_TYPE}" buildtype)
   IF (CMAKE_C_FLAGS)