Add runstatedir test

Related: RHBZ#1831941

tests/functional.fmf

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+summary: Functional tier tests
+discover:
+    how: fmf
+execute:
+    how: tmt

tests/runstatedir/Makefile.am

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+# Taken from http://www.idryman.org/blog/2016/03/10/autoconf-tutorial-1/
+bin_PROGRAMS = hello
+hello_SOURCES = hello.c
+

tests/runstatedir/configure.ac

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+# Taken from http://www.idryman.org/blog/2016/03/10/autoconf-tutorial-1/
+# Must init the autoconf setup
+# The first parameter is project name
+# second is version number
+# third is bug report address
+AC_INIT([hello], [1.0])
+
+# We want to expand templates in this file
+AC_CONFIG_FILES([hello.c])
+# Store the auxiliary build tools (e.g., install-sh, config.sub, config.guess)
+# in this dir (build-aux)
+AC_CONFIG_AUX_DIR([build-aux])
+
+# Init automake, and specify this program use relaxed structures.
+# i.e. this program doesn't follow the gnu coding standards, and doesn't have
+# ChangeLog, COPYING, AUTHORS, INSTALL, README etc. files.
+AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+
+# Check for C compiler
+AC_PROG_CC
+# We can add more checks in this section
+
+# Tells automake to create a Makefile
+# See https://www.gnu.org/software/automake/manual/html_node/Requirements.html
+AC_CONFIG_FILES([Makefile])
+
+# Generate the output
+AC_OUTPUT

tests/runstatedir/hello.c.in

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+// Taken from http://www.idryman.org/blog/2016/03/10/autoconf-tutorial-1/
+#include <stdio.h>
+int main(int argc, char** argv) {
+  printf("hello world!\n");
+  printf("runstatedir: @runstatedir@\n");
+  return 0;
+}
+

tests/runstatedir/main.fmf

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+summary: The test for runstatedir feature
+description: |
+    This test verifies basic functionality including the --runstatedir
+    feature: https://lists.gnu.org/archive/html/autoconf-patches/2013-09/msg00018.html
+contact: Honza Horak <hhorak@redhat.com>
+component:
+test: ./run
+path: /tests/runstatedir
+recommend:
+- autoconf
+- automake
+- libtool
+duration: 5m

tests/runstatedir/run

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+#!/bin/bash
+
+# Taken from http://www.idryman.org/blog/2016/03/10/autoconf-tutorial-1/
+
+set -xe
+
+autoreconf --verbose --install --force
+./configure --help
+./configure --runstatedir=/var/mytmp
+make
+./hello
+./hello | grep 'hello world!'
+./hello | grep 'runstatedir: /var/mytmp'
+make dist
+
+echo "Test for --runstatedir succeeded."