Undo perl's nasty locale setting on Windows. Since we can't do that as

elsewhere by setting the environment appropriately, we make perl do it
right after interpreter startup by calling its POSIX::setlocale().

diff --git a/src/pl/plperl/plperl.c b/src/pl/plperl/plperl.c
index 016b0cfd5f318eb4a53987d7bfdb1e35c3cb6f78..2c2ea0e43c516d3ff2c119947e9faac1774b5794 100644 (file)
--- a/src/pl/plperl/plperl.c
+++ b/src/pl/plperl/plperl.c
@@ -43,6 +43,7 @@
 #include <ctype.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <locale.h>
 
 /* postgreSQL stuff */
 #include "commands/trigger.h"
@@ -204,6 +205,45 @@ plperl_init_interp(void)
                "sub ::mkunsafefunc {return eval(qq[ sub { $_[0] $_[1] } ]); }"
        };
 
+#ifdef WIN32
+
+       /* 
+        * The perl library on startup does horrible things like call
+        * setlocale(LC_ALL,""). We have protected against that on most
+        * platforms by setting the environment appropriately. However, on
+        * Windows, setlocale() does not consult the environment, so we need
+        * to save the excisting locale settings before perl has a chance to 
+        * mangle them and restore them after its dirty deeds are done.
+        *
+        * MSDN ref:
+        * http://msdn.microsoft.com/library/en-us/vclib/html/_crt_locale.asp
+        *
+        * It appaers that we only need to do this on interpreter startup, and
+        * subsequent calls to the interpreter don't mess with the locale
+        * settings.
+        *
+        * We restore them using Perl's POSIX::setlocale() function so that
+        * Perl doesn't have a different idea of the locale from Postgres.
+        *
+        */
+
+       char *loc;
+       char *save_collate, *save_ctype, *save_monetary, *save_numeric, *save_time;
+       char buf[1024];
+
+       loc = setlocale(LC_COLLATE,NULL);
+       save_collate = loc ? pstrdup(loc) : NULL;
+       loc = setlocale(LC_CTYPE,NULL);
+       save_ctype = loc ? pstrdup(loc) : NULL;
+       loc = setlocale(LC_MONETARY,NULL);
+       save_monetary = loc ? pstrdup(loc) : NULL;
+       loc = setlocale(LC_NUMERIC,NULL);
+       save_numeric = loc ? pstrdup(loc) : NULL;
+       loc = setlocale(LC_TIME,NULL);
+       save_time = loc ? pstrdup(loc) : NULL;
+
+#endif
+
        plperl_interp = perl_alloc();
        if (!plperl_interp)
                elog(ERROR, "could not allocate Perl interpreter");
@@ -216,6 +256,50 @@ plperl_init_interp(void)
         * Initialize the procedure hash table
         ************************************************************/
        plperl_proc_hash = newHV();
+
+#ifdef WIN32
+
+       eval_pv("use POSIX qw(locale_h);", TRUE); /* croak on failure */
+
+       if (save_collate != NULL)
+       {
+               snprintf(buf, sizeof(buf),"setlocale(%s,'%s');",
+                                "LC_COLLATE",save_collate);
+               eval_pv(buf,TRUE);
+               pfree(save_collate);
+       }
+       if (save_ctype != NULL)
+       {
+               snprintf(buf, sizeof(buf),"setlocale(%s,'%s');",
+                                "LC_CTYPE",save_ctype);
+               eval_pv(buf,TRUE);
+               pfree(save_ctype);
+       }
+       if (save_monetary != NULL)
+       {
+               snprintf(buf, sizeof(buf),"setlocale(%s,'%s');",
+                                "LC_MONETARY",save_monetary);
+               eval_pv(buf,TRUE);
+               pfree(save_monetary);
+       }
+       if (save_numeric != NULL)
+       {
+               snprintf(buf, sizeof(buf),"setlocale(%s,'%s');",
+                                "LC_NUMERIC",save_numeric);
+               eval_pv(buf,TRUE);
+               pfree(save_numeric);
+       }
+       if (save_time != NULL)
+       {
+               snprintf(buf, sizeof(buf),"setlocale(%s,'%s');",
+                                "LC_TIME",save_time);
+               eval_pv(buf,TRUE);
+               pfree(save_time);
+       }
+
+#endif
+
+
 }