test: skip the wacom tests if we can't open the .so file

Distribution package builds that use -Wl,-z,relro -Wl,-z,now will
attempt to resolve all symbols on dlopen(). This is explicitly what we
do not want because we don't link in the whole X server.

It's a bit hard to override this for a single executable (my attempts
didn't go far so there may be some other flag that influences this too)
so for now just skip the whole test - this is better than failing the
test suite.

Signed-off-by: Peter Hutterer <[email protected]>

test/wacom-tests.c

@@ -31,7 +31,8 @@ int main(void) {
 
 	if (handle == NULL) {
 		fprintf(stderr, "Failed to open %s: %s\n", TESTDRV, dlerror());
-		return 1;
+		fprintf(stderr, "This test suite relies on dlopen(RTLD_LAZY) which may be disabled by your compiler/linker flags\n");
+		return 77;
 	}
 
 	func = dlsym(handle, TESTFUNC);