Improve build system and autodetection.

* Make ./configure standalone, that's what people expect.
* Let people write a ./configure.local from scratch, not edit existing files.
* Autodetect wchar, sqlite3, and manpath and act accordingly.
* Autodetect the need for -L/usr/local/lib and -lutil.
* Get rid of config.h.p{re,ost}, let ./configure only write what's needed.
* Let ./configure write a Makefile.local snippet, that's quite flexible.

1 files changed, 59 insertions, 0 deletions

diff --git a/test-wchar.c b/test-wchar.c
new file mode 100644
index 00000000..ad37c5fc
--- /dev/null
+++ b/test-wchar.c
@@ -0,0 +1,59 @@
+/*	$Id: test-wchar.c,v 1.1 2014/08/16 19:00:01 schwarze Exp $	*/
+/*
+ * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <locale.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	wchar_t	 wc;
+	int	 width;
+
+	if (setlocale(LC_ALL, "") == NULL) {
+		fputs("setlocale(LC_ALL, \"\") failed\n", stderr);
+		return(1);
+	}
+
+	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL) {
+		fputs("setlocale(LC_CTYPE, \"en_US.UTF-8\") failed\n",
+		    stderr);
+		return(1);
+	}
+
+	if (sizeof(wchar_t) < 4) {
+		fprintf(stderr, "wchar_t is only %zu bytes\n",
+		    sizeof(wchar_t));
+		return(1);
+	}
+
+	if ((width = wcwidth(L' ')) != 1) {
+		fprintf(stderr, "wcwidth(L' ') returned %d\n", width);
+		return(1);
+	}
+
+	dup2(STDERR_FILENO, STDOUT_FILENO);
+	wc = L'*';
+	if (putwchar(wc) != wc) {
+		fputs("bad putwchar return value\n", stderr);
+		return(1);
+	}
+
+	return(0);
+}