test: add basic link test

This test doesn't do anything but compile and link against libevdev. It's a
simple protection to avoid linker errors. If we ever have libs we depend on
and they don't get resolved properly, this test should warn us in time.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

test/.gitignore

@@ -1,3 +1,4 @@
 gcov-report.txt
 test-libevdev
+test-link
 test-compile-pedantic

test/Makefile.am

@@ -1,6 +1,6 @@
 if BUILD_TESTS
 run_tests = test-libevdev
-build_tests = test-compile-pedantic
+build_tests = test-compile-pedantic test-link
 
 noinst_PROGRAMS = $(run_tests) $(build_tests)
 
@@ -39,6 +39,10 @@ test_libevdev_LDADD =  $(CHECK_LIBS) $(GCOV_LDFLAGS)
 test_compile_pedantic_SOURCES = test-compile-pedantic.c
 test_compile_pedantic_CFLAGS = $(AM_CPPFLAGS) -pedantic -Werror -std=c90
 
+test_link_SOURCES = test-link.c
+test_link_CFLAGS = -I$(top_srcdir)
+test_link_LDADD = $(top_builddir)/libevdev/libevdev.la
+
 if GCOV_ENABLED
 
 CLEANFILES = gcov-report.txt

test/test-link.c

@@ -0,0 +1,6 @@
+#include <stddef.h>
+#include <libevdev/libevdev.h>
+
+int main(void) {
+	return libevdev_new_from_fd(0, NULL);
+}