Add a test for ppoll

tests/Makefile

@@ -32,6 +32,7 @@ TARGETS=test_memcpy_static_write     \
 	test_stpncpy_static_write    \
 	test_getcwd                  \
 	test_poll                    \
+	test_ppoll                   \
 
 .SILENT:
 

tests/test_ppoll.c

@@ -0,0 +1,15 @@
+#include "common.h"
+
+#define _GNU_SOURCE
+#include <poll.h>
+
+int main(int argc, char** argv) {
+  struct pollfd buffer[12] = {0};
+
+  CHK_FAIL_START
+  ppoll(buffer, 14, NULL, NULL);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}