diff -r 0121592e2512 -r 2947214c450e pre-inst/pre-inst.c
--- a/pre-inst/pre-inst.c	Thu Jul 16 19:54:45 2020 +0100
+++ b/pre-inst/pre-inst.c	Tue Apr 25 17:41:00 2023 +0100
@@ -48,12 +48,13 @@
 #endif	/* WIN32 */
 #include "post.h"
 
-#ifdef WIN32
-/* Under WIN32, g_spawn requires a helper program which we'd rather avoid */
-#undef USE_G_SPAWN
-#else
+/*
+ * Under WIN32, g_spawn may require a helper program which we'd rather avoid.
+ * At least with glib 2.58, this isn't needed if g_spawn_sync() is used (or
+ * G_SPAWN_DO_NOT_REAP_CHILD is specified), so we can now define USE_G_SPAWN
+ * unconditionally.
+ */
 #define USE_G_SPAWN
-#endif
 
 LUALIB_API int luaopen_posix(lua_State *L);
 
@@ -376,6 +377,7 @@
 	  "Post command exited with code %ld",(long)rc);
 	return FALSE;
     }
+    fprintf(stderr,"post command exited normally\n");
     return TRUE;
 }
 
@@ -422,6 +424,29 @@
     return TRUE;
 }
 
+print_arguments(int argc,char **argv)
+{
+    int i,j;
+    for(i=0;i<argc;i++)
+    {
+	if (i)
+	    putchar(' ');
+	if (strchr(argv[i],' ') || strchr(argv[i],'"') || strchr(argv[i],'\n'))
+	{
+	    putchar('"');
+	    for(j=0;argv[i][j];j++)
+	    {
+		if (strchr("$`\"\\\n",argv[i][j]))
+		    putchar('\\');
+		putchar(argv[i][j]);
+	    }
+	    putchar('"');
+	}
+	else
+	    fputs(argv[i],stdout);
+    }
+}
+
 /*
  * Run a command after completing request.
  *
@@ -446,7 +471,6 @@
 	  "--post: No command given");
 	return FALSE;
     }
-    printf("Running post command: %s\n",argv[1]);
     if (!g_shell_parse_argv(argv[1],&post_argc,&post_argv,&tmp_error))
     {
 	g_propagate_prefixed_error(error,tmp_error,"%s: ",argv[1]);
@@ -482,6 +506,9 @@
 	    post_argv[i]=expanded;
 	}
     }
+    printf("Running post command: ");
+    print_arguments(post_argc,post_argv);
+    putchar('\n');
     return pre_install_spawn_sync(post_argv,error);
 }
 
@@ -593,7 +620,12 @@
 	}
     }
     if (post && post->argc>0)
+    {
+	printf("Running post command: ");
+	print_arguments(post->argc,post->argv);
+	putchar('\n');
 	pre_install_spawn_sync(post->argv,&error);
+    }
     else if (argv)
 	run_post(argc,argv,success,repository,&error);
     if (post)