Fix setup of coding-systems on MS-Windows

* src/emacs.c (main) [HAVE_PDUMPER] [WINDOWSNT]: Call
'w32_init_file_name_codepage' again after loading the pdumper
file.
* src/w32.c (w32_init_file_name_codepage) [HAVE_PDUMPER]:
Reinitialize additional variables.  (Bug#75207)

1 files changed, 13 insertions, 0 deletions

diff --git a/src/w32.c b/src/w32.c
index a49399153aa..deeca031f64 100644
--- a/src/w32.c
+++ b/src/w32.c
@@ -1685,6 +1685,19 @@ w32_init_file_name_codepage (void)
 {
   file_name_codepage = CP_ACP;
   w32_ansi_code_page = CP_ACP;
+#ifdef HAVE_PDUMPER
+  /* If we were dumped with pdumper, this function will be called after
+     loading the pdumper file, and needs to reset the following
+     variables that come from the dump stage, which could be on a
+     different system with different default codepages.  Then, the
+     correct value of w32-ansi-code-page will be assigned by
+     globals_of_w32fns, which is called from 'main'.  Until that call
+     happens, w32-ansi-code-page will have the value of CP_ACP, which
+     stands for the default ANSI codepage.  The other variables will be
+     computed by codepage_for_filenames below.  */
+  Vdefault_file_name_coding_system = Qnil;
+  Vfile_name_coding_system = Qnil;
+#endif
 }
 
 /* Produce a Windows ANSI codepage suitable for encoding file names.