Disable test runs on make distcheck

The tests all need root, but running distcheck as root is not ideal. Disable
the test runs (but not the build) to make it easier to verify distcheck works
as intended.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>

Makefile.am

@@ -9,3 +9,5 @@ pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libevdev.pc
 
 EXTRA_DIST = libevdev.pc.in
+
+AM_DISTCHECK_CONFIGURE_FLAGS = --disable-test-run

configure.ac

@@ -79,6 +79,11 @@ AM_CONDITIONAL(HAVE_VALGRIND, [test "x$VALGRIND" != "x"])
 AM_CONDITIONAL(ENABLE_RUNTIME_TESTS, [test "x$HAVE_CHECK" = "xyes"])
 AM_CONDITIONAL(ENABLE_STATIC_LINK_TEST, [test "x$enable_static" = "xyes"])
 
+AC_ARG_ENABLE([test-run],
+	       AS_HELP_STRING([--enable-test-run], [For internal use only]),
+	       [run_tests="$enableval"], [run_tests="yes"])
+AM_CONDITIONAL(RUN_TESTS, [test "x$run_tests" = "xyes"])
+
 with_cflags=""
 if test "x$GCC" = "xyes"; then
 	CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
@@ -163,6 +168,7 @@ AC_MSG_RESULT([
 
 	       Build documentation		${have_doxygen}
 	       Enable unit-tests		${HAVE_CHECK}
+	       Run unit-tests			${run_tests}
 	       Enable profiling			${enable_gcov}
 	       Static library symbol check	${static_symbol_leaks_test}
 	       ])

test/Makefile.am

@@ -31,7 +31,9 @@ run_tests = test-libevdev test-kernel
 
 noinst_PROGRAMS += $(run_tests)
 
+if RUN_TESTS
 TESTS = $(run_tests)
+endif
 
 libevdev_sources = $(top_srcdir)/libevdev/libevdev.c \
 		   $(top_srcdir)/libevdev/libevdev.h \