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| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | THANKS | 1 | ||||
| -rw-r--r-- | doc/autoconf.texi | 18 |
3 files changed, 25 insertions, 0 deletions
@@ -1,5 +1,11 @@ 2010-09-07 Eric Blake <eblake@redhat.com> + docs: mention bash vs. POSIXLY_CORRECT + * doc/autoconf.texi (Special Shell Variables) <POSIXLY_CORRECT>: + Document bash behavior. + * THANKS: Update. + Reported by Dustin J. Mitchell, via bug-gnulib list. + docs: enhance recommendations on test usage * doc/autoconf.texi (Limitations of Builtins) <test (strings)>: Mention yet another Solaris issue. @@ -113,6 +113,7 @@ Dietmar P. Schindler schd@mra.man.de Dmitry Grebeniuk gdsfh1@gmail.com Doug Evans dje@canuck.cygnus.com Dries Kimpe ? +Dustin J. Mitchell dustin@zmanda.com Edouard Bechetoille ebecheto@ens-lyon.fr Elbert Pol elbert.pol@gmail.com Eli Zaretskii eliz@gnu.org diff --git a/doc/autoconf.texi b/doc/autoconf.texi index 4d62bf39..15639d96 100644 --- a/doc/autoconf.texi +++ b/doc/autoconf.texi @@ -16416,6 +16416,24 @@ separator Bash uses to set up certain environment variables (such as if you plan to use non-Posix shells to execute files. @xref{File System Conventions}, for more information about @code{PATH_SEPARATOR}. +@item POSIXLY_CORRECT +@evindex POSIXLY_CORRECT +In the GNU environment, exporting @env{POSIXLY_CORRECT} with any value +(even empty) causes programs to try harder to conform to Posix. +Autoconf does not directly manipulate this variable, but @command{bash} +ties the shell variable @env{POSIXLY_CORRECT} to whether the script is +running in Posix mode. Therefore, take care when exporting or unsetting +this variable, so as not to change whether @command{bash} is in Posix +mode. + +@example +$ @kbd{bash --posix -c 'set -o | grep posix} +> @kbd{unset POSIXLY_CORRECT} +> @kbd{set -o | grep posix'} +posix on +posix off +@end example + @item PWD @evindex PWD Posix 1003.1-2001 requires that @command{cd} and |