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@node stdlib.h
@section @file{stdlib.h}
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/stdlib.h.html}
Gnulib module: stdlib, system-posix
Portability problems fixed by the Gnulib module @code{stdlib}:
@itemize
@item
The macros @code{EXIT_SUCCESS} and @code{EXIT_FAILURE} are not defined on
some platforms.
@item
The macro @code{EXIT_FAILURE} is incorrectly defined on Tandem/NSK.
@item
Some platforms provide a @code{NULL} macro that cannot be used in arbitrary
expressions:
NetBSD 5.0
@end itemize
Portability problems fixed by the Gnulib module @code{system-posix}:
@itemize
@item
The macros @code{WIFSIGNALED}, @code{WIFEXITED}, @code{WIFSTOPPED},
@code{WTERMSIG}, @code{WEXITSTATUS}, @code{WNOHANG}, @code{WUNTRACED},
@code{WSTOPSIG} are not defined in this header file (only in
@code{<sys/wait.h>}) on some platforms:
MirBSD 10.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
System status macros such as @code{WEXITSTATUS} require an lvalue
argument on some platforms.
MacOS X 10.5.
@end itemize
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