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changeset 17809:c09cc53c0ae6

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doc: mention that _BSD_SOURCE is deprecated for _DEFAULT_SOURCE * doc/posix-functions/setjmp.texi: Defining _BSD_SOURCE will induce warnings unless _DEFAULT_SOURCE is also defined.
author Pádraig Brady <P@draigBrady.com>
date Fri, 28 Nov 2014 10:57:31 +0000
parents ca2d3c70f7e8
children bd0ea7eae3d0
files doc/posix-functions/setjmp.texi
diffstat 1 files changed, 5 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/doc/posix-functions/setjmp.texi
+++ b/doc/posix-functions/setjmp.texi
@@ -15,9 +15,9 @@
 @item
 POSIX does not specify whether @code{setjmp} saves the signal mask in the
 @code{jmp_buf}.  It does on BSD platforms, and on glibc platforms when
-@code{_BSD_SOURCE} is defined; in this case @code{setjmp} behaves like
-@code{sigsetjmp(.,1)}, and functions @code{_setjmp} and @code{_longjmp} are
-available that don't save or restore the signal mask.  On System V platforms
-(excluding HP-UX), and on glibc platforms by default, @code{setjmp} doesn't
-save the signal mask.
+@code{_BSD_SOURCE} (and/or @code{_DEFAULT_SOURCE} on glibc >= 2.19) is defined;
+in this case @code{setjmp} behaves like @code{sigsetjmp(.,1)}, and functions
+@code{_setjmp} and @code{_longjmp} are available that don't save or restore
+the signal mask.  On System V platforms (excluding HP-UX), and on glibc
+platforms by default, @code{setjmp} doesn't save the signal mask.
 @end itemize