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# DP: bash-4.2 upstream patch 005
BASH PATCH REPORT
=================
Bash-Release: 4.2
Patch-ID: bash42-005
Bug-Reported-by: Dennis Williamson <dennistwilliamson@gmail.com>
Bug-Reference-ID: <AANLkTikDbEV5rnbPc0zOfmZfBcg0xGetzLLzK+KjRiNa@mail.gmail.com>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-02/msg00147.html
Bug-Description:
Systems that use tzset() to set the local timezone require the TZ variable
to be in the environment. Bash must make sure the environment has been
modified with any updated value for TZ before calling tzset(). This
affects prompt string expansions and the `%T' printf conversion specification
on systems that do not allow bash to supply a replacement for getenv(3).
Patch (apply with `patch -p0'):
--- a/bash/builtins/printf.def
+++ b/bash/builtins/printf.def
@@ -465,6 +465,9 @@
secs = shell_start_time; /* roughly $SECONDS */
else
secs = arg;
+#if defined (HAVE_TZSET)
+ sv_tz ("TZ"); /* XXX -- just make sure */
+#endif
tm = localtime (&secs);
n = strftime (timebuf, sizeof (timebuf), timefmt, tm);
free (timefmt);
--- a/bash/parse.y
+++ b/bash/parse.y
@@ -5135,6 +5135,9 @@
case 'A':
/* Make the current time/date into a string. */
(void) time (&the_time);
+#if defined (HAVE_TZSET)
+ sv_tz ("TZ"); /* XXX -- just make sure */
+#endif
tm = localtime (&the_time);
if (c == 'd')
--- a/bash/patchlevel.h
+++ b/bash/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 4
+#define PATCHLEVEL 5
#endif /* _PATCHLEVEL_H_ */
--- a/bash/variables.c
+++ b/bash/variables.c
@@ -3653,6 +3653,22 @@
return n;
}
+int
+chkexport (name)
+ char *name;
+{
+ SHELL_VAR *v;
+
+ v = find_variable (name);
+ if (exported_p (v))
+ {
+ array_needs_making = 1;
+ maybe_make_export_env ();
+ return 1;
+ }
+ return 0;
+}
+
void
maybe_make_export_env ()
{
@@ -4214,7 +4230,7 @@
{ "TEXTDOMAIN", sv_locale },
{ "TEXTDOMAINDIR", sv_locale },
-#if defined (HAVE_TZSET) && defined (PROMPT_STRING_DECODE)
+#if defined (HAVE_TZSET)
{ "TZ", sv_tz },
#endif
@@ -4558,12 +4574,13 @@
}
#endif /* HISTORY */
-#if defined (HAVE_TZSET) && defined (PROMPT_STRING_DECODE)
+#if defined (HAVE_TZSET)
void
sv_tz (name)
char *name;
{
- tzset ();
+ if (chkexport (name))
+ tzset ();
}
#endif
--- a/bash/variables.h
+++ b/bash/variables.h
@@ -313,6 +313,7 @@
extern void sort_variables __P((SHELL_VAR **));
+extern int chkexport __P((char *));
extern void maybe_make_export_env __P((void));
extern void update_export_env_inplace __P((char *, int, char *));
extern void put_command_name_into_env __P((char *));
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