add valgrind for tests

configure.ac

@@ -50,6 +50,7 @@ PKG_PROG_PKG_CONFIG
 PKG_CHECK_MODULES(OPENSSL, openssl)
 
 gl_LD_VERSION_SCRIPT
+gl_VALGRIND_TESTS
 
 AC_ARG_WITH([backend],
   [AS_HELP_STRING([--with-backend=ARG],

lib/tests/Makefile.am

@@ -32,3 +32,5 @@ LDADD = ../libykpiv.la
 
 check_PROGRAMS = basic parse_key
 TESTS = $(check_PROGRAMS)
+
+TESTS_ENVIRONMENT = $(VALGRIND)

m4/valgrind-tests.m4

@@ -0,0 +1,37 @@
+# valgrind-tests.m4 serial 3
+dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Simon Josefsson
+
+# gl_VALGRIND_TESTS()
+# -------------------
+# Check if valgrind is available, and set VALGRIND to it if available.
+AC_DEFUN([gl_VALGRIND_TESTS],
+[
+  AC_ARG_ENABLE(valgrind-tests,
+    AS_HELP_STRING([--enable-valgrind-tests],
+                   [run self tests under valgrind]),
+    [opt_valgrind_tests=$enableval], [opt_valgrind_tests=yes])
+
+  # Run self-tests under valgrind?
+  if test "$opt_valgrind_tests" = "yes" && test "$cross_compiling" = no; then
+    AC_CHECK_PROGS(VALGRIND, valgrind)
+  fi
+
+  OPTS="-q --error-exitcode=1 --leak-check=full"
+
+  if test -n "$VALGRIND" \
+     && $VALGRIND $OPTS $SHELL -c 'exit 0' > /dev/null 2>&1; then
+    opt_valgrind_tests=yes
+    VALGRIND="$VALGRIND $OPTS"
+  else
+    opt_valgrind_tests=no
+    VALGRIND=
+  fi
+
+  AC_MSG_CHECKING([whether self tests are run under valgrind])
+  AC_MSG_RESULT($opt_valgrind_tests)
+])

tool/tests/Makefile.am

@@ -25,6 +25,7 @@
 # for the parts of OpenSSL used as well as that of the covered work.
 
 TESTS_ENVIRONMENT = export VERSION=$(PACKAGE_VERSION); export EXEEXT=$(EXEEXT);
+TESTS_ENVIRONMENT += $(VALGRIND)
 
 AM_CFLAGS = $(WARN_CFLAGS)
 AM_CPPFLAGS = -I$(top_srcdir)/lib -I$(top_builddir)/lib