1 files changed, 39 insertions, 0 deletions
diff --git a/tests/iconvsupport.c b/tests/iconvsupport.c
new file mode 100644
index 0000000..e6059a3
--- /dev/null
+++ b/tests/iconvsupport.c
@@ -0,0 +1,39 @@
+/* Test iconv support.
+   Copyright (C) 2018 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+extern int iconv_supports_encoding (const char *encoding);
+
+#if HAVE_ICONV
+# include <iconv.h>
+#endif
+
+/* Tests whether iconv() supports a given encoding.  */
+int
+iconv_supports_encoding (const char *encoding)
+{
+#if HAVE_ICONV
+  iconv_t cd = iconv_open ("UTF-8", encoding);
+  if (cd != (iconv_t) -1)
+    {
+      iconv_close (cd);
+      return 1;
+    }
+#endif
+  return 0;
+}