diff options
| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2007-05-27 16:10:33 +0000 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2007-05-27 16:10:33 +0000 |
| commit | 98817d8387ed6a44637e39087848d6f012d582d2 (patch) | |
| tree | c8f3ef31d75ad8ca711373c1be19b8d339d41d0c /man3/sigpause.3 | |
| parent | 2addd91025f7c8eb30b0744054dbd08cf7986c63 (diff) | |
Clarify discussion of feature test macros that are needed to
expose Sysem V and BSD versions of this function in glibc.
Diffstat (limited to 'man3/sigpause.3')
| -rw-r--r-- | man3/sigpause.3 | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/man3/sigpause.3 b/man3/sigpause.3 index 134063a7..1cb3dc80 100644 --- a/man3/sigpause.3 +++ b/man3/sigpause.3 @@ -68,11 +68,16 @@ function, that takes a .I "sigset_t *" parameter (instead of an .IR int ). -.LP +.SS Linux Notes On Linux, this routine is a system call only on the Sparc (sparc64) architecture. + Libc4 and libc5 only know about the BSD version. -Glibc uses the BSD version unless _XOPEN_SOURCE is defined. + +Glibc uses the BSD version if the _BSD_SOURCE feature test macro is +defined and none of _POSIX_SOURCE, _POSIX_C_SOURCE, _XOPEN_SOURCE, +_GNU_SOURCE, or _SVID_SOURCE is defined. +The System V version is used if _XOPEN_SOURCE is defined. .\" .\" For the BSD version, one usually uses a zero .\" .I sigmask @@ -83,4 +88,5 @@ Glibc uses the BSD version unless _XOPEN_SOURCE is defined. .BR sigprocmask (2), .BR sigsuspend (2), .BR sigblock (3), -.BR sigvec (3) +.BR sigvec (3), +.BR feature_test_macros (7) |