minor changes

1 files changed, 23 insertions, 3 deletions

diff --git a/mixutils/mixvm_loop.c b/mixutils/mixvm_loop.c
index 8a571d8..a565832 100644
--- a/mixutils/mixvm_loop.c
+++ b/mixutils/mixvm_loop.c
@@ -20,13 +20,33 @@
  */
 
 
+#define _GNU_SOURCE 1
+#include <stdio.h>
 
 #include <mixlib/mix.h>
-#include <stdio.h>
-#include <readline/readline.h>
-#include <readline/history.h>
 #include "mixvm_command.h"
 
+#ifdef HAVE_LIBHISTORY
+#  include <readline/history.h>
+#else
+#  define add_history(x) ((void)0)
+#endif
+
+#ifdef HAVE_LIBREADLINE
+#  include <readline/readline.h>
+#else /* !HAVE_LIBREADLINE */
+static char *
+readline (char *prompt)
+{
+  char *line = NULL;
+  size_t s = 0;
+  
+  printf ("%s", prompt);
+  getline (&line, &s, stdin);
+  return line;
+}
+#endif /* HAVE_LIBREADLINE */
+
 /* A static variable for holding the line. */
 static char *line_read = (char *)NULL;
 static const char *PROMPT = N_("MIX > ");