2 files changed, 2 insertions, 1 deletions

diff --git a/el.c b/el.c
index f615b5c..40dccbd 100644
--- a/el.c
+++ b/el.c
@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include "mystdlib.h"
 #include <unistd.h>
+#include <ctype.h>
 
 // Our index into the already scanned lines.
 // memory buffer is estimated to 1/32th of the
diff --git a/mystdlib.c b/mystdlib.c
index b53beca..56edcb9 100644
--- a/mystdlib.c
+++ b/mystdlib.c
@@ -22,7 +22,7 @@ MAP map_file( char *filename, int readonly )
     {
       fstat( map->fh, &fstatus );
       if( ( map->addr = mmap( NULL, map->size = (size_t)fstatus.st_size,
-         PROT_READ | ( readonly ? 0 : PROT_WRITE), (readonly ? 0 : MAP_SHARED), map->fh, 0) ) == MAP_FAILED )
+         PROT_READ | ( readonly ? 0 : PROT_WRITE), (readonly ? MAP_PRIVATE : MAP_SHARED), map->fh, 0) ) == MAP_FAILED )
       {
         fprintf( stderr, "Mapping file '%s' failed\n", filename );
         close( map->fh ); free( map ); map = NULL;