* xreadline.c: New. Based on the iobuf_read_line function.

* no-libgcrypt.c (gcry_realloc, gcry_xmalloc, gcry_xcalloc): New.

* gpgconf-comp.c (retrieve_options_from_program)
(retrieve_options_from_file, change_options_file)
(change_options_program, gc_component_change_options): Replaced
getline by read_line and test for allocation failure.

tools/no-libgcrypt.c

@@ -38,6 +38,12 @@ out_of_core (void)
 }
 
 
+void *
+gcry_malloc (size_t n)
+{
+  return malloc (n);
+}
+
 void *
 gcry_xmalloc (size_t n)
 {
@@ -47,6 +53,13 @@ gcry_xmalloc (size_t n)
   return p;
 }
 
+
+void *
+gcry_realloc (void *a, size_t n)
+{
+  return realloc (a, n);
+}
+
 void *
 gcry_xrealloc (void *a, size_t n)
 {
@@ -56,6 +69,14 @@ gcry_xrealloc (void *a, size_t n)
   return p;
 }
 
+
+
+void *
+gcry_calloc (size_t n, size_t m)
+{
+  return calloc (n, m);
+}
+
 void *
 gcry_xcalloc (size_t n, size_t m)
 {
@@ -65,6 +86,7 @@ gcry_xcalloc (size_t n, size_t m)
   return p;
 }
 
+
 char *
 gcry_xstrdup (const char *string)
 {