- Add two more iconv-related files, which were left out from previous commit

Approved by:	delphij (mentor)

tools/build/options/WITH_ICONV

@@ -0,0 +1,2 @@
+.\" $FreeBSD$
+Set to build iconv as part of libc.

tools/test/iconv/const-gnuism.c

@@ -0,0 +1,70 @@
+/*-
+ * Copyright (C) 2010 Gabor Kovesdan <gabor@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+
+#include <err.h>
+#include <iconv.h>
+#include <stdlib.h>
+#include <string.h>
+
+int
+main(void)
+{
+	iconv_t cd;
+	size_t inbytes, outbytes;
+	char *str1 = "FOOBAR";
+	const char *str2 = "FOOBAR";
+	char ** in1;
+	const char ** in2 = &str2;
+	char *out1, *out2;
+
+	inbytes = outbytes = strlen("FOOBAR");
+
+	if ((cd = iconv_open("UTF-8", "ASCII")) == (iconv_t)-1)
+		err(1, NULL);
+
+	if ((out2 = malloc(inbytes)) == NULL)
+		err(1, NULL);
+
+	if (iconv(cd, in2, &inbytes, &out2, &outbytes) == -1)
+		err(1, NULL);
+
+	in1 = &str1;
+	inbytes = outbytes = strlen("FOOBAR");
+
+	if ((out1 = malloc(inbytes)) == NULL)
+		err(1, NULL);
+
+	if (iconv(cd, in1, &inbytes, &out1, &outbytes) == -1)
+		err(1, NULL);
+
+	return (EXIT_SUCCESS);
+
+}