sys_select tests: Check the signature of FD_*.

* tests/test-select.c (FD_CLR, FD_ISSET, FD_SET, FD_ZERO): Move
signature tests from here...
* tests/test-sys_select.c (FD_CLR, FD_ISSET, FD_SET, FD_ZERO): ... to
here.
* modules/sys_select-tests (Files): Add tests/signature.h.

2 files changed, 17 insertions, 15 deletions

diff --git a/tests/test-select.c b/tests/test-select.c
index 9e927f81d6..47d775919e 100644
--- a/tests/test-select.c
+++ b/tests/test-select.c
@@ -31,21 +31,6 @@ SIGNATURE_CHECK (select, int, (int, fd_set *, fd_set *, fd_set *,
                                struct timeval *));
 #endif
 
-/* The following may be macros without underlying functions, so only
-   check signature if they are not macros.  */
-#ifndef FD_CLR
-SIGNATURE_CHECK (FD_CLR, void, (int, fd_set *));
-#endif
-#ifndef FD_ISSET
-SIGNATURE_CHECK (FD_ISSET, void, (int, fd_set *));
-#endif
-#ifndef FD_SET
-SIGNATURE_CHECK (FD_SET, int, (int, fd_set *));
-#endif
-#ifndef FD_ZERO
-SIGNATURE_CHECK (FD_ZERO, void, (fd_set *));
-#endif
-
 #include <stdio.h>
 #include <string.h>
 #include <netinet/in.h>
diff --git a/tests/test-sys_select.c b/tests/test-sys_select.c
index 619a570727..76596dba30 100644
--- a/tests/test-sys_select.c
+++ b/tests/test-sys_select.c
@@ -20,6 +20,23 @@
 
 #include <sys/select.h>
 
+#include "signature.h"
+
+/* The following may be macros without underlying functions, so only
+   check signature if they are not macros.  */
+#ifndef FD_CLR
+SIGNATURE_CHECK (FD_CLR, void, (int, fd_set *));
+#endif
+#ifndef FD_ISSET
+SIGNATURE_CHECK (FD_ISSET, void, (int, fd_set *));
+#endif
+#ifndef FD_SET
+SIGNATURE_CHECK (FD_SET, int, (int, fd_set *));
+#endif
+#ifndef FD_ZERO
+SIGNATURE_CHECK (FD_ZERO, void, (fd_set *));
+#endif
+
 /* Check that the 'struct timeval' type is defined.  */
 struct timeval t1;