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, 2 insertions, 2 deletions

diff --git a/mandocdb.c b/mandocdb.c
index 3a48714e..6bc5361c 100644
--- a/mandocdb.c
+++ b/mandocdb.c
@@ -25,7 +25,7 @@
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
-#ifdef HAVE_FTS
+#if HAVE_FTS
 #include <fts.h>
 #else
 #include "compat_fts.h"
@@ -39,7 +39,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#ifdef HAVE_OHASH
+#if HAVE_OHASH
 #include <ohash.h>
 #else
 #include "compat_ohash.h"