===================================================================
RCS file: /cvs/mandoc/configure,v
retrieving revision 1.41
retrieving revision 1.43.2.1
diff -u -p -r1.41 -r1.43.2.1
--- mandoc/configure	2016/07/15 15:08:37	1.41
+++ mandoc/configure	2016/07/20 14:14:07	1.43.2.1
@@ -1,5 +1,7 @@
 #!/bin/sh
 #
+# $Id: configure,v 1.43.2.1 2016/07/20 14:14:07 schwarze Exp $
+#
 # Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
 #
 # Permission to use, copy, modify, and distribute this software for any
@@ -35,9 +37,11 @@ MANPATH_DEFAULT="/usr/share/man:/usr/X11R6/man:/usr/lo
 OSNAME=
 
 CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | env -i make -f -`
-CFLAGS="-g -W -Wall -Wstrict-prototypes -Wno-unused-parameter -Wwrite-strings"
+CFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings"
+CFLAGS="${CFLAGS} -Wno-unused-parameter"
 LDADD=
 LDFLAGS=
+LD_NANOSLEEP=
 LD_OHASH=
 LD_SQLITE3=
 STATIC="-static"
@@ -53,6 +57,7 @@ HAVE_GETSUBOPT=
 HAVE_ISBLANK=
 HAVE_MKDTEMP=
 HAVE_MMAP=
+HAVE_NANOSLEEP=
 HAVE_PLEDGE=
 HAVE_PROGNAME=
 HAVE_REALLOCARRAY=
@@ -240,6 +245,20 @@ else
 	runtest sqlite3_errstr SQLITE3_ERRSTR "${LD_SQLITE3}" || true
 fi
 
+# --- nanosleep ---
+if [ -n "${LD_NANOSLEEP}" ]; then
+	runtest nanosleep NANOSLEEP "${LD_NANOSLEEP}" || true
+elif singletest nanosleep NANOSLEEP; then
+	:
+elif runtest nanosleep NANOSLEEP "-lrt"; then
+	LD_NANOSLEEP="-lrt"
+fi
+if [ "${HAVE_NANOSLEEP}" -eq 0 ]; then
+	echo "FATAL: nanosleep: no" 1>&2
+	echo "FATAL: nanosleep: no" 1>&3
+	exit 1
+fi
+
 # --- ohash ---
 if ismanual ohash "${HAVE_OHASH}"; then
 	:
@@ -255,7 +274,7 @@ if [ "${HAVE_OHASH}" -eq 0 ]; then
 fi
 
 # --- LDADD ---
-LDADD="${LDADD} ${LD_SQLITE3} ${LD_OHASH} -lz"
+LDADD="${LDADD} ${LD_SQLITE3} ${LD_NANOSLEEP} ${LD_OHASH} -lz"
 echo "LDADD=\"${LDADD}\"" 1>&2
 echo "LDADD=\"${LDADD}\"" 1>&3
 echo 1>&3
@@ -284,8 +303,9 @@ cat << __HEREDOC__
 #error "Do not use C++.  See the INSTALL file."
 #endif
 
-#ifndef MANDOC_CONFIG_H
-#define MANDOC_CONFIG_H
+#if !defined(__GNUC__) || (__GNUC__ < 4)
+#define __attribute__(x)
+#endif
 
 #if defined(__linux__) || defined(__MINT__)
 #define _GNU_SOURCE	/* See test-*.c what needs this. */
@@ -389,9 +409,6 @@ fi
 
 [ ${HAVE_VASPRINTF} -eq 0 ] && \
 	echo "extern	int	  vasprintf(char **, const char *, va_list);"
-
-echo
-echo "#endif /* MANDOC_CONFIG_H */"
 
 echo "config.h: written" 1>&2
 echo "config.h: written" 1>&3