--- a2ps-4.15.4/liba2ps/jobs.c.orig	2023-06-11 19:59:27.481861785 +0200
+++ a2ps-4.15.4/liba2ps/jobs.c	2023-06-11 19:59:52.208394496 +0200
@@ -119,6 +119,7 @@ a2ps_job_new (void)
   setlocale (LC_TIME, "");
   setlocale (LC_MESSAGES, "");
   setlocale (LC_CTYPE, "");
+  setlocale (LC_PAPER, "");
 
   bindtextdomain (PACKAGE, LOCALEDIR);
   bindtextdomain (PACKAGE "-gnulib", LOCALEDIR);
--- a2ps-4.15.4/liba2ps/options.c.orig	2023-04-12 20:50:51.000000000 +0200
+++ a2ps-4.15.4/liba2ps/options.c	2023-06-11 20:00:19.368247359 +0200
@@ -23,6 +23,8 @@
 /*                                                                      */
 /************************************************************************/
 #include <config.h>
+#include <locale.h>
+#include <langinfo.h>
 
 #include "a2ps.h"
 #include "routines.h"
@@ -267,7 +269,8 @@ a2ps_handle_options (a2ps_job * job, int
   struct opt_optarg *opt_optarg_head = NULL;
   struct opt_optarg *opt_optarg = NULL;
   int res;
-
+  unsigned int paper_height=0;
+  
   /* Reset optind so that getopt is reinitialized. */
   optind = 0;
 
@@ -515,7 +518,14 @@ a2ps_handle_options (a2ps_job * job, int
 	break;
 
       case 'M':                 		/* select a medium */
-	xstrcpy (job->medium_request, optarg);
+          if(strcasecmp("_glibc",optarg)==0){
+              paper_height = ((union { char *string; unsigned int word; })nl_langinfo(_NL_PAPER_HEIGHT)).word;
+              if(paper_height==279) /* US Letter */
+                  strcpy(optarg,"letter");
+              else /* Everyone else */
+                  strcpy(optarg,"a4");
+          }
+          xstrcpy (job->medium_request, optarg);
 	break;
 
       case 'n':				/* n copies */
--- a2ps-4.15.4/src/main.c.orig	2023-06-11 20:00:41.568127092 +0200
+++ a2ps-4.15.4/src/main.c	2023-06-11 20:01:05.021333368 +0200
@@ -926,6 +926,7 @@ main (int argc, char *argv[])
   setlocale (LC_TIME, "");
   setlocale (LC_MESSAGES, "");
   setlocale (LC_CTYPE, "");
+  setlocale (LC_PAPER, "");
 
   bindtextdomain (PACKAGE, LOCALEDIR);
   bindtextdomain (PACKAGE "-gnulib", LOCALEDIR);