cmake MK_HAVE_VALGRIND examples

monkey/monkey CMakeLists.txt :207

check_c_source_compiles("
  #include <valgrind/valgrind.h>
  int main() {
     return 0;
  }" MK_HAVE_VALGRIND)

fluent/fluent-bit lib/monkey/CMakeLists.txt :207

check_c_source_compiles("
  #include <valgrind/valgrind.h>
  int main() {
     return 0;
  }" MK_HAVE_VALGRIND)