--- a/acinclude.m4	2017-11-28 10:22:53.000000000 +0100
+++ b/acinclude.m4	2017-12-22 16:28:09.361331754 +0100
@@ -3227,20 +3227,26 @@
 
 dnl PHP_CHECK_VALGRIND
 AC_DEFUN([PHP_CHECK_VALGRIND], [
-  AC_MSG_CHECKING([for valgrind])
+  AC_CACHE_CHECK(whether to enable the check for valgrind support,ac_cv_enable_valgrind_check,[
+    ac_cv_enable_valgrind_check=yes
+  ])
 
-  SEARCH_PATH="/usr/local /usr"
-  SEARCH_FOR="/include/valgrind/valgrind.h"
-  for i in $SEARCH_PATH ; do
-    if test -r $i/$SEARCH_FOR; then
-      VALGRIND_DIR=$i
-    fi
-  done
+  if test "$ac_cv_enable_valgrind_check" = "yes"; then
+    AC_MSG_CHECKING([for valgrind])
+
+    SEARCH_PATH="/usr/local /usr"
+    SEARCH_FOR="/include/valgrind/valgrind.h"
+    for i in $SEARCH_PATH ; do
+      if test -r $i/$SEARCH_FOR; then
+        VALGRIND_DIR=$i
+      fi
+    done
 
-  if test -z "$VALGRIND_DIR"; then
-    AC_MSG_RESULT([not found])
-  else
-    AC_MSG_RESULT(found in $VALGRIND_DIR)
-    AC_DEFINE(HAVE_VALGRIND, 1, [ ])
+    if test -z "$VALGRIND_DIR"; then
+      AC_MSG_RESULT([not found])
+    else
+      AC_MSG_RESULT(found in $VALGRIND_DIR)
+      AC_DEFINE(HAVE_VALGRIND, 1, [ ])
+    fi
   fi
 ])