1 files changed, 2 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index b85b3421bd..7dd61776b4 100644
--- a/configure.in
+++ b/configure.in
@@ -1781,6 +1781,8 @@ AC_CHECK_FUNCS(backtrace)
 
 AC_ARG_WITH(valgrind,
         AS_HELP_STRING([--with-valgrind],[enable valgrind memcheck support]),
+        ruby_cv_with_valgrind=yes,ruby_cv_with_valgrind=no)
+AS_IF([test x$ruby_cv_with_valgrind != xno],
         [AC_CHECK_HEADERS(valgrind/memcheck.h)])
 
 dnl }