cmake HAVE_VALGRIND_MEMCHECK_H examples

hyle-team/zano contrib/db/libmdbx/cmake/profile.cmake :31 

check_include_file_cxx(valgrind/memcheck.h HAVE_VALGRIND_MEMCHECK_H)

hyle-team/zano contrib/db/libmdbx/cmake/profile.cmake :34 

check_include_file(valgrind/memcheck.h HAVE_VALGRIND_MEMCHECK_H)