tests: Add check based unit test system
Introduces new unit tests based on `check`. Each subsystem/module can
have its own unit tests in tests/check-<name>.c that will be linked
together in tests/check-all.c.
Running 'make check' will compile and run the unit tests automatically.
A reference unit test implementation has been done for the abstract
address module.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
diff --git a/configure.ac b/configure.ac
index 66f4f7b..744e34e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,6 +75,8 @@
AC_C_CONST
AC_C_INLINE
+AM_PATH_CHECK()
+
AC_ARG_WITH([pkgconfigdir], AS_HELP_STRING([--with-pkgconfigdir=PATH],
[Path to the pkgconfig directory [[LIBDIR/pkgconfig]]]),
[pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig'])