Fallback for missing getline (used in the testsuite).

ChangeLog

 2014-10-22  Niels Möller  <nisse@lysator.liu.se>
 
+	* configure.ac: Check for getline function.
+	* testsuite/ed25519-test.c (getline) [!HAVE_GETLINE]: Fallback
+	definition.
+
 	* Makefile.in (clean-here): Unconditionally delete .so and .dll
 	files.
 	(IMPLICIT_TARGETS): Deleted variable.

configure.ac

@@ -647,7 +647,8 @@ AC_CHECK_HEADERS([valgrind/memcheck.h])
 
 LSH_FUNC_ALLOCA
 LSH_FUNC_STRERROR
-
+# Used in the testsuite
+AC_CHECK_FUNCS(getline)
 AC_C_BIGENDIAN
 
 LSH_GCC_ATTRIBUTES

testsuite/ed25519-test.c

@@ -117,6 +117,44 @@ test_one (const char *line)
   free (msg);
 }
 
+#ifndef HAVE_GETLINE
+static ssize_t
+getline(char **lineptr, size_t *n, FILE *f)
+{
+  size_t i;
+  int c;
+  if (!*lineptr)
+    {
+      *n = 500;
+      *lineptr = xalloc (*n);
+    }
+
+  i = 0;
+  do
+    {
+      c = getc(f);
+      if (c < 0)
+	{
+	  if (i > 0)
+	    break;
+	  return -1;
+	}
+
+      (*lineptr) [i++] = c;
+      if (i == *n)
+	{
+	  *n *= 2;
+	  *lineptr = realloc (*lineptr, *n);
+	  if (!*lineptr)
+	    die ("Virtual memory exhausted.\n");
+	}
+    } while (c != '\n');
+
+  (*lineptr) [i] = 0;
+  return i;
+}
+#endif
+
 void
 test_main(void)
 {