patch to get a relocateable mc

[Ludovic Drolez <ludovic drolez freealter com>]

Hi !

I've just found that mc is not relocateable. If you compile mc with 
'--prefix=/tmp/xxx' and
then move it to /usr/local, even with 'export 
MC_LIBDIR=/usr/local/lib/mc' some things
do not work:
- syntax highlighting
- single filesystem (.tgz ...)
- + bogus error messages
Indeed, to take into account 'MC_LIBDIR' you need to use the 'mc_home' 
variable
and not the LIBDIR define.

The included patch fixes that. (for 4.5.5X)

Regards,

   Ludovic Drolez.

diff -uNr mc-4.5.51.orig/gtkedit/syntax.c mc-4.5.51/gtkedit/syntax.c
--- mc-4.5.51.orig/gtkedit/syntax.c	Mon Jul  3 16:32:03 2000
+++ mc-4.5.51/gtkedit/syntax.c	Fri Jul 20 10:24:52 2001
@@ -598,6 +598,8 @@
 static FILE *open_include_file (char *filename)
 {
     FILE *f;
+    char *mc_libdir;
+    
     char p[MAX_PATH_LEN];
     syntax_free (error_file_name);
     error_file_name = (char *) strdup (filename);
@@ -611,8 +613,10 @@
     f = fopen (p, "r");
     if (f)
 	return f;
-    strcpy (p, LIBDIR "/syntax/");
+    mc_libdir = concat_dir_and_file (mc_home, "/syntax/");
+    strcpy (p, mc_libdir);
     strcat (p, filename);
+    free (mc_libdir);
     syntax_free (error_file_name);
     error_file_name = (char *) strdup (p);
     return fopen (p, "r");
diff -uNr mc-4.5.51.orig/vfs/extfs.c mc-4.5.51/vfs/extfs.c
--- mc-4.5.51.orig/vfs/extfs.c	Mon Jul  3 16:31:59 2000
+++ mc-4.5.51/vfs/extfs.c	Fri Jul 20 10:24:34 2001
@@ -1052,10 +1052,10 @@
 
     mc_extfsini = concat_dir_and_file (mc_home, "extfs/extfs.ini");
     cfg = fopen (mc_extfsini, "r");
-    g_free (mc_extfsini);
 
     if (!cfg) {
-        fprintf( stderr, "Warning: " LIBDIR "extfs/extfs.ini not found\n" );
+        fprintf( stderr, "Warning: %s not found\n", mc_extfsini );
+	g_free (mc_extfsini);
         return 0;
     }
 
@@ -1075,8 +1075,9 @@
 	/* We may not use vfs_die() message or message_1s or similar,
          * UI is not initialized at this time and message would not
 	 * appear on screen. */
-	    fprintf( stderr, "Warning: You need to update your " LIBDIR "extfs/extfs.ini file.\n" );
+	    fprintf( stderr, "Warning: You need to update your %s file.\n", mc_extfsini );
 	    fclose(cfg);
+	    g_free (mc_extfsini);
 	    return 0;
 	}
 	if (*key == '#')
@@ -1098,6 +1099,7 @@
 	extfs_no++;
     }
     fclose(cfg);
+    g_free (mc_extfsini);
     return 1;
 }
 
diff -uNr mc-4.5.51.orig/vfs/sfs.c mc-4.5.51/vfs/sfs.c
--- mc-4.5.51.orig/vfs/sfs.c	Mon Jul  3 16:31:59 2000
+++ mc-4.5.51/vfs/sfs.c	Fri Jul 20 10:24:40 2001
@@ -291,12 +291,18 @@
 
 static int sfs_init (vfs *me)
 {
-    FILE *cfg = fopen (LIBDIR "extfs/sfs.ini", "r");
+    char *mc_sfsini;
+    FILE *cfg;
+
+    mc_sfsini = concat_dir_and_file (mc_home, "extfs/sfs.ini");
+    cfg = fopen (mc_sfsini, "r");
 
     if (!cfg){
-        fprintf (stderr, "Warning: " LIBDIR "extfs/sfs.ini not found\n");
-        return 0;
+        fprintf (stderr, "Warning: %s not found\n", mc_sfsini);
+        free (mc_sfsini);
+	return 0;
     }
+    free (mc_sfsini);
 
     sfs_no = 0;
     while (sfs_no < MAXFS){