tests: posix: net: fix missing clock_t and clockid_t with newlib

Fix errors found in CI for missing clock_t and clockid_t types
when building the tests/posix/net testsuite.

Signed-off-by: Chris Friedt <[email protected]>

Author: cfriedt

include/zephyr/posix/posix_types.h

@@ -11,6 +11,18 @@
 #include <sys/types.h>
 #endif
 
+#if !defined(_CLOCK_T_DECLARED) && !defined(__clock_t_defined)
+typedef unsigned long clock_t;
+#define _CLOCK_T_DECLARED
+#define __clock_t_defined
+#endif
+
+#if !defined(_CLOCKID_T_DECLARED) && !defined(__clockid_t_defined)
+typedef unsigned long clockid_t;
+#define _CLOCKID_T_DECLARED
+#define __clockid_t_defined
+#endif
+
 #ifdef CONFIG_NEWLIB_LIBC
 #include <sys/_pthreadtypes.h>
 #endif

include/zephyr/posix/sys/select.h

@@ -6,6 +6,8 @@
 #ifndef ZEPHYR_INCLUDE_POSIX_SYS_SELECT_H_
 #define ZEPHYR_INCLUDE_POSIX_SYS_SELECT_H_
 
+#include "posix_types.h"
+
 #include <zephyr/sys/fdtable.h>
 
 #ifdef __cplusplus

tests/posix/net/CMakeLists.txt

@@ -7,3 +7,5 @@ project(posix_net)
 FILE(GLOB app_sources src/*.c)
 
 target_sources(app PRIVATE ${app_sources})
+
+target_compile_options(app PRIVATE -U_POSIX_C_SOURCE -D_POSIX_C_SOURCE=200809L)