diff options
Diffstat (limited to 'rts/posix/Itimer.c')
| -rw-r--r-- | rts/posix/Itimer.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/rts/posix/Itimer.c b/rts/posix/Itimer.c index 80925df703..98b23f623e 100644 --- a/rts/posix/Itimer.c +++ b/rts/posix/Itimer.c @@ -18,6 +18,27 @@ */ #include "PosixSource.h" + +/* We've defined _POSIX_SOURCE via "PosixSource.h", and yet still use + some non-POSIX features. With _POSIX_SOURCE defined, visibility of + non-POSIX extension prototypes requires _DARWIN_C_SOURCE on Mac OS X and + __BSD_VISIBLE on FreeBSD and DragonflyBSD. Otherwise, for example, code + using pthread_setname_np(3) and variants will not compile. We must + therefore define the additional macros that expose non-POSIX APIs early, + before any of the relevant system headers are included via "Rts.h". + + An alternative approach could be to write portable wrappers or stubs for all + the non-posix functions in a C-module that does not include "PosixSource.h", + and then use only POSIX features and the portable wrapper functions in all + other C-modules. */ +#include "ghcconfig.h" +#if defined(freebsd_HOST_OS) || defined(dragonfly_HOST_OS) +#define __BSD_VISIBLE 1 +#endif +#if defined(darwin_HOST_OS) +#define _DARWIN_C_SOURCE 1 +#endif + #include "Rts.h" /* |