#!/bin/sh
#
# $Id$
#
# Copyright (c) 2014-2020 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.

set -e

[ -w config.log ] && mv config.log config.log.old
[ -w config.h   ] && mv config.h config.h.old

# Output file descriptor usage:
# 1 (stdout): config.h, Makefile.local
# 2 (stderr): original stderr, usually to the console
# 3: config.log

exec 3> config.log
echo "file config.log: writing..."

# --- default settings -------------------------------------------------
# Initialize all variables here,
# such that nothing can leak in from the environment.

SOURCEDIR=`dirname "${0}"`

MANPATH_BASE="/usr/share/man:/usr/X11R6/man"
MANPATH_DEFAULT="/usr/share/man:/usr/X11R6/man:/usr/local/man"
OSENUM=
OSNAME=
UTF8_LOCALE=

CC=cc
CFLAGS=
FATAL=0
LDADD=
LDFLAGS=
LD_NANOSLEEP=
LD_OHASH=
LD_RECVMSG=
STATIC=

BUILD_CGI=0
BUILD_CATMAN=0
INSTALL_LIBMANDOC=0

HAVE_ATTRIBUTE=
HAVE_CMSG=
HAVE_DIRENT_NAMLEN=
HAVE_EFTYPE=
HAVE_ENDIAN=
HAVE_ERR=
HAVE_FTS=
HAVE_FTS_COMPARE_CONST=
HAVE_GETLINE=
HAVE_GETSUBOPT=
HAVE_ISBLANK=
HAVE_LESS_T=
HAVE_MKDTEMP=
HAVE_NANOSLEEP=
HAVE_NTOHL=
HAVE_O_DIRECTORY=
HAVE_OHASH=
HAVE_PATH_MAX=
HAVE_PLEDGE=
HAVE_PROGNAME=
HAVE_REALLOCARRAY=
HAVE_RECALLOCARRAY=
HAVE_RECVMSG=
HAVE_REWB_BSD=
HAVE_REWB_SYSV=
HAVE_SANDBOX_INIT=
HAVE_STRCASESTR=
HAVE_STRINGLIST=
HAVE_STRLCAT=
HAVE_STRLCPY=
HAVE_STRNDUP=
HAVE_STRPTIME=
HAVE_STRSEP=
HAVE_STRTONUM=
HAVE_SYS_ENDIAN=
HAVE_VASPRINTF=
HAVE_WCHAR=

NEED_GNU_SOURCE=0
NEED_OPENBSD_SOURCE=0
NEED_XPG4_2=0

MANDOC_COBJS=
SOELIM_COBJS=

PREFIX="/usr/local"
BINDIR=
SBINDIR=
BIN_FROM_SBIN=
INCLUDEDIR=
LIBDIR=
MANDIR=
HOMEBREWDIR=

WWWPREFIX="/var/www"
HTDOCDIR=
CGIBINDIR=

BINM_APROPOS="apropos"
BINM_CATMAN="catman"
BINM_MAKEWHATIS="makewhatis"
BINM_MAN="man"
BINM_SOELIM="soelim"
BINM_WHATIS="whatis"
MANM_MAN="man"
MANM_MANCONF="man.conf"
MANM_MDOC="mdoc"
MANM_ROFF="roff"
MANM_EQN="eqn"
MANM_TBL="tbl"

INSTALL="install"
INSTALL_PROGRAM=
INSTALL_LIB=
INSTALL_MAN=
INSTALL_DATA=
LN="ln -f"

# --- manual settings from configure.local -----------------------------

if [ -r ./configure.local ]; then
	echo "file configure.local: reading..." 1>&2
	echo "file configure.local: reading..." 1>&3
	cat ./configure.local 1>&3
	. ./configure.local
else
	echo "file configure.local: no (fully automatic configuration)" 1>&2
	echo "file configure.local: no (fully automatic configuration)" 1>&3
fi
echo 1>&3

# --- tests functions --------------------------------------------------

# Check whether this HAVE_ setting is manually overridden.
# If yes, use the override, if no, do not decide anything yet.
# Arguments: test file name, test var name, manual value
ismanual() {
	[ -z "${3}" ] && return 1
	echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
	echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
	echo 1>&3
	return 0
}

# Run a single autoconfiguration test.
# In case of success, enable the feature.
# In case of failure, do not decide anything yet.
# Arguments: test file name, test var name, additional CFLAGS
singletest() {
	n=${1}${3}
	cat 1>&3 << __HEREDOC__
testing ${n} ...
${COMP} -o test-${1} test-${1}.c ${3}
__HEREDOC__

	if ${COMP} -o "test-${1}" "${SOURCEDIR}/test-${1}.c" ${3} 1>&3 2>&3
	then
		echo "partial result of ${n}: ${CC} succeeded" 1>&3
	else
		echo "tested ${n}: no (compilation failed)" 1>&2
		echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
		echo "result of compiling ${n}: no" 1>&3
		echo 1>&3
		return 1
	fi

	if ./test-${1} 1>&3 2>&3; then
		echo "tested ${n}: yes" 1>&2
		echo "result of running ${n}: yes" 1>&3
		echo 1>&3
		eval HAVE_${2}=1
		[ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
		[ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
		[ "${3}" = "-D_XPG4_2" ] && NEED_XPG4_2=1
		[ "${3}" = "-lrt" ] && LD_NANOSLEEP="-lrt"
		[ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
		[ "${3}" = "-lutil" ] && LD_OHASH="-lutil"
		rm "test-${1}"
		return 0
	else
		echo "tested ${n}: no (execution failed)" 1>&2
		echo "result of ${n}: execution failed with exit status $?" 1>&3
		echo "result of running ${n}: no" 1>&3
		echo 1>&3
		rm "test-${1}"
		return 1
	fi
}

# Run a complete autoconfiguration test, including the check for
# a manual override and disabling the feature on failure.
# Arguments: test file name, test var name, additional CFLAGS
# The final argument can optionally be repeated a second time.
runtest() {
	eval _manual=\${HAVE_${2}}
	ismanual "${1}" "${2}" "${_manual}" && return 0
	singletest "${1}" "${2}" "${3}" && return 0
	[ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
	eval HAVE_${2}=0
	return 1
}

# Select a UTF-8 locale.
get_locale() {
	[ -n "${HAVE_WCHAR}" ] && [ "${HAVE_WCHAR}" -eq 0 ] && return 0
	ismanual UTF8_LOCALE UTF8_LOCALE "${UTF8_LOCALE}" && return 0
	echo "testing UTF8_LOCALE ..." 1>&3
	UTF8_LOCALE=`locale -a | grep -i '^en_US\.UTF-*8$' | head -n 1`
	if [ -z "${UTF8_LOCALE}" ]; then
		UTF8_LOCALE=`locale -a | grep -i '\.UTF-*8' | head -n 1`
		[ -n "${UTF8_LOCALE}" ] || return 1
	fi
	echo "selected UTF8_LOCALE=${UTF8_LOCALE}" 1>&2
	echo "selected UTF8_LOCALE=${UTF8_LOCALE}" 1>&3
	echo 1>&3
	return 0;
}

# --- operating system -------------------------------------------------

if [ -n "${OSENUM}" ]; then
	echo "OSENUM specified manually: ${OSENUM}" 1>&2
	echo "OSENUM specified manually: ${OSENUM}" 1>&3
else
	OSDETECT=`uname`
	if [ "${OSDETECT}" = "NetBSD" ]; then
		OSENUM=MANDOC_OS_NETBSD
	elif [ "${OSDETECT}" = "OpenBSD" ]; then
		OSENUM=MANDOC_OS_OPENBSD
	else
		OSENUM=MANDOC_OS_OTHER
	fi
	echo "tested operating system: ${OSDETECT} -> OSENUM=${OSENUM}" 1>&2
	echo "tested operating system: ${OSDETECT} -> OSENUM=${OSENUM}" 1>&3
	unset OSDETECT
fi
echo 1>&3

# --- compiler options -------------------------------------------------

DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"

if [ -n "${CFLAGS}" ]; then
	COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
else
	COMP="${CC} ${DEFCFLAGS} -Wno-unused -Werror"
fi
echo -n "tested ${CC} -W: " 1>&2
echo -n "testing ${CC} -W: " 1>&3
runtest noop WFLAG || true

if [ -n "${CFLAGS}" ]; then
	echo "CFLAGS specified manually:" 1>&3
elif [ ${HAVE_WFLAG} -eq 0 ]; then
	CFLAGS="-g"
else
	CFLAGS="${DEFCFLAGS}"
fi
echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
echo 1>&3

COMP="${CC} ${CFLAGS}"
[ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"

if [ -n "${STATIC}" ]; then
	echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
	echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
	echo 1>&3
else
	runtest noop STATIC -static || true
	[ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
	echo "selected STATIC=\"${STATIC}\"" 1>&2
	echo "selected STATIC=\"${STATIC}\"" 1>&3
	echo 1>&3
fi

# --- tests for config.h  ----------------------------------------------

# --- library functions ---
runtest attribute	ATTRIBUTE	|| true
runtest cmsg		CMSG		"" "-D_XPG4_2" || true
runtest dirent-namlen	DIRENT_NAMLEN	|| true
runtest be32toh		ENDIAN		|| true
runtest be32toh		SYS_ENDIAN	-DSYS_ENDIAN || true
runtest EFTYPE		EFTYPE		|| true
runtest err		ERR		|| true
runtest getline		GETLINE		|| true
runtest getsubopt	GETSUBOPT	"" -D_GNU_SOURCE || true
runtest isblank		ISBLANK		|| true
runtest mkdtemp		MKDTEMP		|| true
runtest nanosleep	NANOSLEEP	"${LD_NANOSLEEP}" "-lrt" || true
runtest ntohl		NTOHL		|| true
runtest O_DIRECTORY	O_DIRECTORY	|| true
runtest PATH_MAX	PATH_MAX	|| true
runtest pledge		PLEDGE		|| true
runtest sandbox_init	SANDBOX_INIT	|| true
runtest progname	PROGNAME	|| true
runtest reallocarray	REALLOCARRAY	"" -D_OPENBSD_SOURCE || true
runtest recallocarray	RECALLOCARRAY	"" -D_OPENBSD_SOURCE || true
runtest recvmsg		RECVMSG		"${LD_RECVMSG}" "-lsocket" || true
runtest rewb-bsd	REWB_BSD	|| true
runtest rewb-sysv	REWB_SYSV	|| true
runtest strcasestr	STRCASESTR	"" -D_GNU_SOURCE || true
runtest stringlist	STRINGLIST	|| true
runtest strlcat		STRLCAT		|| true
runtest strlcpy		STRLCPY		|| true
runtest strndup		STRNDUP		|| true
runtest strptime	STRPTIME	"" -D_GNU_SOURCE || true
runtest strsep		STRSEP		|| true
runtest strtonum	STRTONUM	"" -D_OPENBSD_SOURCE || true
runtest vasprintf	VASPRINTF	"" -D_GNU_SOURCE || true

# --- fts ---
if [ "${1}" = "-depend" ]; then
	HAVE_FTS=0
	HAVE_FTS_COMPARE_CONST=0
	echo "tested fts: HAVE_FTS=0 (for make depend)" 1>&2
	echo "tested fts: HAVE_FTS=0 (for make depend)" 1>&3
	echo 1>&3
elif ismanual fts FTS ${HAVE_FTS}; then
	HAVE_FTS_COMPARE_CONST=0
elif runtest fts FTS_COMPARE_CONST -DFTS_COMPARE_CONST; then
	HAVE_FTS=1
else
	runtest fts FTS || true
fi

# --- tagging support in the pager ---
if ismanual "less -T" LESS_T ${HAVE_LESS_T}; then
	:
elif less -ET /dev/null test-noop.c 1>/dev/null 2>&3; then
	HAVE_LESS_T=1
	echo "tested less -T: yes" 1>&2
	echo "tested less -T: yes" 1>&3
	echo 1>&3
else
	HAVE_LESS_T=0
	echo "tested less -T: no" 1>&2
	echo "tested less -T: no" 1>&3
	echo 1>&3
fi

# --- wide character and locale support ---
if get_locale; then
	runtest wchar WCHAR "-DUTF8_LOCALE=\"${UTF8_LOCALE}\"" \
	    "-D_GNU_SOURCE -DUTF8_LOCALE=\"${UTF8_LOCALE}\"" || true
else
	HAVE_WCHAR=0
	echo "tested wchar: no (no UTF8_LOCALE)" 1>&2
	echo "tested wchar: no (no UTF8_LOCALE)" 1>&3
	echo 1>&3
fi

# --- ohash ---
if [ "${1}" = "-depend" ]; then
	HAVE_OHASH=0
	echo "tested ohash: HAVE_OHASH=0 (for make depend)" 1>&2
	echo "tested ohash: HAVE_OHASH=0 (for make depend)" 1>&3
	echo 1>&3
else
	runtest ohash OHASH "${LD_OHASH}" "-lutil" || true
fi
if [ "${HAVE_OHASH}" -eq 0 ]; then
	LD_OHASH=
fi

# --- required functions ---
if [ ${HAVE_ENDIAN} -eq 0 -a \
     ${HAVE_SYS_ENDIAN} -eq 0 -a \
     ${HAVE_NTOHL} -eq 0 ]; then
	echo "FATAL: no endian conversion functions found" 1>&2
	echo "FATAL: no endian conversion functions found" 1>&3
	FATAL=1
fi
if [ "${HAVE_NANOSLEEP}" -eq 0 ]; then
	echo "FATAL: nanosleep: no" 1>&2
	echo "FATAL: nanosleep: no" 1>&3
	FATAL=1
fi
if [ ${BUILD_CATMAN} -gt 0 -a "${HAVE_RECVMSG}" -eq 0 ]; then
	echo "FATAL: recvmsg: no" 1>&2
	echo "FATAL: recvmsg: no" 1>&3
	echo "Without recvmsg(2), you cannot BUILD_CATMAN." 1>&2
	FATAL=1
fi
if [ ${BUILD_CATMAN} -gt 0 -a "${HAVE_CMSG}" -eq 0 ]; then
	echo "FATAL: cmsg: no" 1>&2
	echo "FATAL: cmsg: no" 1>&3
	echo "Without CMSG_FIRSTHDR(3), you cannot BUILD_CATMAN." 1>&2
	FATAL=1
fi
[ "${FATAL}" -eq 0 ] || exit 1

# --- LDADD ---
LDADD="${LDADD} ${LD_NANOSLEEP} ${LD_RECVMSG} ${LD_OHASH} -lz"
echo "selected LDADD=\"${LDADD}\"" 1>&2
echo "selected LDADD=\"${LDADD}\"" 1>&3
echo 1>&3

# --- write config.h ---

exec > config.h

cat << __HEREDOC__
#ifdef __cplusplus
#error "Do not use C++.  See the INSTALL file."
#endif

__HEREDOC__

[ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
[ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"

[ ${HAVE_GETLINE} -eq 0 -o \
  ${HAVE_REALLOCARRAY} -eq 0 -o ${HAVE_RECALLOCARRAY} -eq 0 -o \
  ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 -o \
  ${HAVE_STRNDUP} -eq 0 ] \
	&& echo "#include <sys/types.h>"
[ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
[ ${HAVE_GETLINE} -eq 0 ] && echo "#include <stdio.h>"

echo
echo "#define MAN_CONF_FILE \"/etc/${MANM_MANCONF}\""
echo "#define MANPATH_BASE \"${MANPATH_BASE}\""
echo "#define MANPATH_DEFAULT \"${MANPATH_DEFAULT}\""
echo "#define OSENUM ${OSENUM}"
[ -n "${OSNAME}" ] && echo "#define OSNAME \"${OSNAME}\""
[ -n "${UTF8_LOCALE}" ] && echo "#define UTF8_LOCALE \"${UTF8_LOCALE}\""
[ -n "${HOMEBREWDIR}" ] && echo "#define HOMEBREWDIR \"${HOMEBREWDIR}\""
[ ${HAVE_ATTRIBUTE} -eq 0 ] && echo "#define __attribute__(x)"
[ ${HAVE_EFTYPE} -eq 0 ] && echo "#define EFTYPE EINVAL"
[ ${HAVE_O_DIRECTORY} -eq 0 ] && echo "#define O_DIRECTORY 0"
[ ${HAVE_PATH_MAX} -eq 0 ] && echo "#define PATH_MAX 4096"
if [ ${HAVE_ENDIAN} -eq 0 -a ${HAVE_SYS_ENDIAN} -eq 0 ]; then
	echo "#define be32toh ntohl"
	echo "#define htobe32 htonl"
fi
cat << __HEREDOC__

#define HAVE_DIRENT_NAMLEN ${HAVE_DIRENT_NAMLEN}
#define HAVE_ENDIAN ${HAVE_ENDIAN}
#define HAVE_ERR ${HAVE_ERR}
#define HAVE_FTS ${HAVE_FTS}
#define HAVE_FTS_COMPARE_CONST ${HAVE_FTS_COMPARE_CONST}
#define HAVE_GETLINE ${HAVE_GETLINE}
#define HAVE_GETSUBOPT ${HAVE_GETSUBOPT}
#define HAVE_ISBLANK ${HAVE_ISBLANK}
#define HAVE_LESS_T ${HAVE_LESS_T}
#define HAVE_MKDTEMP ${HAVE_MKDTEMP}
#define HAVE_NTOHL ${HAVE_NTOHL}
#define HAVE_PLEDGE ${HAVE_PLEDGE}
#define HAVE_PROGNAME ${HAVE_PROGNAME}
#define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
#define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY}
#define HAVE_REWB_BSD ${HAVE_REWB_BSD}
#define HAVE_REWB_SYSV ${HAVE_REWB_SYSV}
#define HAVE_SANDBOX_INIT ${HAVE_SANDBOX_INIT}
#define HAVE_STRCASESTR ${HAVE_STRCASESTR}
#define HAVE_STRINGLIST ${HAVE_STRINGLIST}
#define HAVE_STRLCAT ${HAVE_STRLCAT}
#define HAVE_STRLCPY ${HAVE_STRLCPY}
#define HAVE_STRNDUP ${HAVE_STRNDUP}
#define HAVE_STRPTIME ${HAVE_STRPTIME}
#define HAVE_STRSEP ${HAVE_STRSEP}
#define HAVE_STRTONUM ${HAVE_STRTONUM}
#define HAVE_SYS_ENDIAN ${HAVE_SYS_ENDIAN}
#define HAVE_VASPRINTF ${HAVE_VASPRINTF}
#define HAVE_WCHAR ${HAVE_WCHAR}
#define HAVE_OHASH ${HAVE_OHASH}
#define NEED_XPG4_2 ${NEED_XPG4_2}

#define BINM_APROPOS "${BINM_APROPOS}"
#define BINM_CATMAN "${BINM_CATMAN}"
#define BINM_MAKEWHATIS "${BINM_MAKEWHATIS}"
#define BINM_MAN "${BINM_MAN}"
#define BINM_SOELIM "${BINM_SOELIM}"
#define BINM_WHATIS "${BINM_WHATIS}"

__HEREDOC__

if [ ${HAVE_ERR} -eq 0 ]; then
	echo "extern	void	  err(int, const char *, ...);"
	echo "extern	void	  errx(int, const char *, ...);"
	echo "extern	void	  warn(const char *, ...);"
	echo "extern	void	  warnx(const char *, ...);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_err.o"
	SOELIM_COBJS="${SOELIM_COBJS} compat_err.o"
fi
if [ ${HAVE_FTS} -eq 0 ]; then
	MANDOC_COBJS="${MANDOC_COBJS} compat_fts.o"
fi
if [ ${HAVE_GETLINE} -eq 0 ]; then
	echo "extern	ssize_t	  getline(char **, size_t *, FILE *);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_getline.o"
	SOELIM_COBJS="${SOELIM_COBJS} compat_getline.o"
fi
if [ ${HAVE_GETSUBOPT} -eq 0 ]; then
	echo "extern	int	  getsubopt(char **, char * const *, char **);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_getsubopt.o"
fi
if [ ${HAVE_ISBLANK} -eq 0 ]; then
	echo "extern	int	  isblank(int);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_isblank.o"
fi
if [ ${HAVE_MKDTEMP} -eq 0 ]; then
	echo "extern	char	 *mkdtemp(char *);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_mkdtemp.o"
fi
if [ ${HAVE_OHASH} -eq 0 ]; then
	MANDOC_COBJS="${MANDOC_COBJS} compat_ohash.o"
fi
if [ ${HAVE_PROGNAME} -eq 0 ]; then
	echo "extern	const char *getprogname(void);"
	echo "extern	void	  setprogname(const char *);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_progname.o"
	SOELIM_COBJS="${SOELIM_COBJS} compat_progname.o"
fi
if [ ${HAVE_REALLOCARRAY} -eq 0 ]; then
	echo "extern	void	 *reallocarray(void *, size_t, size_t);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_reallocarray.o"
	SOELIM_COBJS="${SOELIM_COBJS} compat_reallocarray.o"
fi
if [ ${HAVE_RECALLOCARRAY} -eq 0 ]; then
	echo "extern	void	 *recallocarray(void *, size_t, size_t, size_t);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_recallocarray.o"
fi
if [ ${HAVE_STRCASESTR} -eq 0 ]; then
	echo "extern	char	 *strcasestr(const char *, const char *);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strcasestr.o"
fi
if [ ${HAVE_STRINGLIST} -eq 0 ]; then
	SOELIM_COBJS="${SOELIM_COBJS} compat_stringlist.o"
fi
if [ ${HAVE_STRLCAT} -eq 0 ]; then
	echo "extern	size_t	  strlcat(char *, const char *, size_t);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strlcat.o"
fi
if [ ${HAVE_STRLCPY} -eq 0 ]; then
	echo "extern	size_t	  strlcpy(char *, const char *, size_t);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strlcpy.o"
fi
if [ ${HAVE_STRNDUP} -eq 0 ]; then
	echo "extern	char	 *strndup(const char *, size_t);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strndup.o"
fi
if [ ${HAVE_STRSEP} -eq 0 ]; then
	echo "extern	char	 *strsep(char **, const char *);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strsep.o"
fi
if [ ${HAVE_STRTONUM} -eq 0 ]; then
	echo "extern	long long strtonum(const char *, long long, long long, const char **);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_strtonum.o"
fi
if [ ${HAVE_VASPRINTF} -eq 0 ]; then
	echo "extern	int	  vasprintf(char **, const char *, va_list);"
	MANDOC_COBJS="${MANDOC_COBJS} compat_vasprintf.o"
fi
echo "file config.h: written" 1>&2
echo "file config.h: written" 1>&3

# --- tests for Makefile.local -----------------------------------------

exec > Makefile.local

[ -z "${BINDIR}"          ] && BINDIR="${PREFIX}/bin"
[ -z "${SBINDIR}"         ] && SBINDIR="${PREFIX}/sbin"
[ -z "${BIN_FROM_SBIN}"   ] && BIN_FROM_SBIN="../bin"
[ -z "${INCLUDEDIR}"      ] && INCLUDEDIR="${PREFIX}/include/mandoc"
[ -z "${LIBDIR}"          ] && LIBDIR="${PREFIX}/lib/mandoc"
[ -z "${MANDIR}"          ] && MANDIR="${PREFIX}/man"

[ -z "${HTDOCDIR}"        ] && HTDOCDIR="${WWWPREFIX}/htdocs"
[ -z "${CGIBINDIR}"       ] && CGIBINDIR="${WWWPREFIX}/cgi-bin"

[ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
[ -z "${INSTALL_LIB}"     ] && INSTALL_LIB="${INSTALL} -m 0444"
[ -z "${INSTALL_MAN}"     ] && INSTALL_MAN="${INSTALL} -m 0444"
[ -z "${INSTALL_DATA}"    ] && INSTALL_DATA="${INSTALL} -m 0444"

BUILD_TARGETS=
[ ${BUILD_CGI} -gt 0 ] && BUILD_TARGETS="man.cgi"
[ ${BUILD_CATMAN} -gt 0 ] && \
	BUILD_TARGETS="${BUILD_TARGETS} mandocd catman"
INSTALL_TARGETS=
[ ${INSTALL_LIBMANDOC} -gt 0 ] && INSTALL_TARGETS="lib-install"
[ ${BUILD_CGI} -gt 0 ] && INSTALL_TARGETS="${INSTALL_TARGETS} cgi-install"
[ ${BUILD_CATMAN} -gt 0 ] && \
	INSTALL_TARGETS="${INSTALL_TARGETS} catman-install"

cat << __HEREDOC__
BUILD_TARGETS	= ${BUILD_TARGETS}
INSTALL_TARGETS	= ${INSTALL_TARGETS}
CC		= ${CC}
CFLAGS		= ${CFLAGS}
LDADD		= ${LDADD}
LDFLAGS		= ${LDFLAGS}
MANDOC_COBJS	= ${MANDOC_COBJS}
SOELIM_COBJS	= ${SOELIM_COBJS}
STATIC		= ${STATIC}
PREFIX		= ${PREFIX}
BINDIR		= ${BINDIR}
SBINDIR		= ${SBINDIR}
BIN_FROM_SBIN	= ${BIN_FROM_SBIN}
INCLUDEDIR	= ${INCLUDEDIR}
LIBDIR		= ${LIBDIR}
MANDIR		= ${MANDIR}
WWWPREFIX	= ${WWWPREFIX}
HTDOCDIR	= ${HTDOCDIR}
CGIBINDIR	= ${CGIBINDIR}
BINM_APROPOS	= ${BINM_APROPOS}
BINM_CATMAN	= ${BINM_CATMAN}
BINM_MAKEWHATIS	= ${BINM_MAKEWHATIS}
BINM_MAN	= ${BINM_MAN}
BINM_SOELIM	= ${BINM_SOELIM}
BINM_WHATIS	= ${BINM_WHATIS}
MANM_MAN	= ${MANM_MAN}
MANM_MANCONF	= ${MANM_MANCONF}
MANM_MDOC	= ${MANM_MDOC}
MANM_ROFF	= ${MANM_ROFF}
MANM_EQN	= ${MANM_EQN}
MANM_TBL	= ${MANM_TBL}
INSTALL		= ${INSTALL}
INSTALL_PROGRAM	= ${INSTALL_PROGRAM}
INSTALL_LIB	= ${INSTALL_LIB}
INSTALL_MAN	= ${INSTALL_MAN}
INSTALL_DATA	= ${INSTALL_DATA}
LN		= ${LN}
__HEREDOC__

echo "file Makefile.local: written" 1>&2
echo "file Makefile.local: written" 1>&3

exit 0