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_POSIX_C_SOURCE-related problems
- From: Ramiro Polla <ramiro at lisha dot ufsc dot br>
- To: pthreads-win32 at sourceware dot org
- Date: Mon, 29 Sep 2008 18:58:52 +0100
- Subject: _POSIX_C_SOURCE-related problems
Hello,
Simple testcase using MinGW gcc 4.2.4, mingw-runtime 3.15, w32api 3.12:
-----------------------------------------------------------------------
ramiro@FOUND ~/code/smalls
$ cat > pthread.c << EOF
> #include <pthread.h>
> EOF
ramiro@FOUND ~/code/smalls
$ gcc -o pthread.o -c pthread.c -D_POSIX_C_SOURCE=200112
In file included from e:/mingw/include/pthread.h:288,
from pthread.c:1:
e:/mingw/include/sched.h:152: error: expected ')' before 'pid'
e:/mingw/include/sched.h:154: error: expected ')' before 'pid'
-----------------------------------------------------------------------
This snippet in sched.h (pthreads-w32-2-8-0) starting at line 116 seems
suspicious:
-----------------------------------------------------------------------
#if defined(__MINGW32__) || defined(_UWIN)
#if PTW32_LEVEL >= PTW32_LEVEL_MAX
/* For pid_t */
# include <sys/types.h>
/* Required by Unix 98 */
# include <time.h>
#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
#else
typedef int pid_t;
#endif
-----------------------------------------------------------------------
PTW32_LEVEL_MAX is defined to 3 in line 61. PTW32_LEVEL is set to 1
under this snippet starting at line 49:
-----------------------------------------------------------------------
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309
#undef PTW32_LEVEL
#define PTW32_LEVEL 1
/* Include 1b, 1c and 1d */
#endif
-----------------------------------------------------------------------
I don't understand why sys/types.h isn't included when _POSIX_C_SOURCE
is defined to 200112. It should be, right? According to [0], pid_t must
be defined in sys/types.h.
Ramiro Polla
[0]http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/types.h.html