dnl
dnl autoconf input file to generate MCONFIG
dnl

AC_PREREQ(2.52)
AC_REVISION([$Id$])
AC_INIT(MCONFIG.in)
AC_PREFIX_DEFAULT(/usr)

AC_ISC_POSIX
AC_AIX
AC_MINIX
AC_PROG_CC

dnl
dnl Feature-test macros.  These need to be set in CFLAGS, rather in
dnl acconfig.h, or "configure" will run in a different environment than
dnl we eventually we build in.
dnl

dnl Needed on Solaris/cc or Solaris/gcc
CFLAGS="$CFLAGS -D_XPG4_2"
CFLAGS="$CFLAGS -D_XOPEN_SOURCE"
CFLAGS="$CFLAGS -D__EXTENSIONS__"

dnl Needed on some glibc systems
CFLAGS="$CFLAGS -D_BSD_SOURCE"
CFLAGS="$CFLAGS -D_ISO9X_SOURCE"

dnl Needed on Digital Unix
CFLAGS="$CFLAGS -D_OSF_SOURCE"
CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"

AC_C_CONST
AC_C_INLINE

AC_SYS_LARGEFILE

PA_ADD_CFLAGS(-W)
PA_ADD_CFLAGS(-Wall)
PA_ADD_CFLAGS(-Wpointer-arith)
PA_ADD_CFLAGS(-Wbad-function-cast)
PA_ADD_CFLAGS(-Wcast-equal)
PA_ADD_CFLAGS(-Wstrict-prototypes)
PA_ADD_CFLAGS(-Wmissing-prototypes)
PA_ADD_CFLAGS(-Wmissing-declarations)
PA_ADD_CFLAGS(-Wnested-externs)
PA_ADD_CFLAGS(-Winline)
PA_ADD_CFLAGS(-Wwrite-strings)
PA_ADD_CFLAGS(-Wundef)
PA_ADD_CFLAGS(-Wshadow)
PA_ADD_CFLAGS(-Wsign-compare)
PA_ADD_CFLAGS(-pipe)

AC_HEADER_STDC
AC_CHECK_HEADERS(inttypes.h)
AC_CHECK_HEADERS(stdint.h)
PA_CHECK_INTTYPES_H_SANE
AC_CHECK_HEADERS(fcntl.h)
AC_CHECK_HEADERS(grp.h)
AC_CHECK_HEADERS(libgen.h)
AC_CHECK_HEADERS(memory.h)
AC_CHECK_HEADERS(setjmp.h)
AC_CHECK_HEADERS(stddef.h)
AC_CHECK_HEADERS(stdlib.h)
AC_CHECK_HEADERS(string.h)
AC_CHECK_HEADERS(strings.h)
AC_CHECK_HEADERS(sysexits.h)
AC_CHECK_HEADERS(time.h)
AC_CHECK_HEADERS(unistd.h)
AC_CHECK_HEADERS(sys/filio.h)
AC_CHECK_HEADERS(sys/stat.h)
AC_CHECK_HEADERS(sys/time.h)
AC_CHECK_HEADERS(sys/types.h)
AC_CHECK_HEADERS(arpa/inet.h)
AC_HEADER_TIME
dnl This is needed on some versions of FreeBSD...
AC_CHECK_HEADERS(machine/param.h)

AC_CHECK_TYPES(intmax_t)
AC_CHECK_TYPES(long long)
AC_CHECK_TYPES(uint16_t)
AC_CHECK_TYPES(uint32_t)
AC_CHECK_TYPES(u_short)
AC_CHECK_TYPES(u_long)
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_MODE_T
AC_TYPE_SIZE_T

AC_SEARCH_LIBS(socket, socket, , [AC_MSG_ERROR(socket library not found)])
AC_SEARCH_LIBS(gethostbyname, [nsl resolv], , [AC_MSG_ERROR(gethostbyname not found)])
AC_SEARCH_LIBS(inet_aton, [nsl resolv], , [AC_MSG_ERROR(inet_aton not found)])
AC_SEARCH_LIBS(herror, [nsl resolv], , [AC_MSG_ERROR(herror not found)])

AC_CHECK_FUNCS(dup2)
AC_CHECK_FUNCS(fcntl)
AC_CHECK_FUNCS(setsid)
AC_CHECK_FUNCS(recvmsg)
AC_CHECK_FUNCS(ftruncate)
AC_CHECK_FUNCS(setreuid)
AC_CHECK_FUNCS(setregid)
AC_CHECK_FUNCS(initgroups)
AC_CHECK_FUNCS(setgroups)

dnl Solaris 8 has [u]intmax_t but not strtoumax().  How utterly braindamaged.
AC_CHECK_FUNCS(strtoumax)
AC_CHECK_FUNCS(strtoull)

PA_MSGHDR_MSG_CONTROL
PA_STRUCT_IN_PKTINFO

PA_HEADER_DEFINES(fcntl.h, int, O_NONBLOCK)
PA_HEADER_DEFINES(fcntl.h, int, O_BINARY)
PA_HEADER_DEFINES(fcntl.h, int, O_TEXT)

AH_TEMPLATE([HAVE_SIGSETJMP],
[Define if we have sigsetjmp, siglongjmp and sigjmp_buf.])
PA_SIGSETJMP([AC_DEFINE(HAVE_SIGSETJMP)])

LIBXTRA=false
AC_SEARCH_LIBS(xmalloc, iberty, , LIBXTRA=true AC_LIBOBJ(xmalloc))
AC_SEARCH_LIBS(xstrdup, iberty, , LIBXTRA=true AC_LIBOBJ(xstrdup))
AC_SEARCH_LIBS(bsd_signal, bsd, , LIBXTRA=true AC_LIBOBJ(bsdsignal))
if $LIBXTRA; then
	LIBS="../lib/libxtra.a $LIBS"
fi

dnl
dnl These libraries apply to the server only
dnl

common_libs="$LIBS"

PA_HEADER_DEFINES(netinet/in.h, int, IPPORT_TFTP)

PA_WITH_BOOL(tcpwrappers, 1,
[  --without-tcpwrappers   disable tcpwrapper permissions checking],
[
	AC_SEARCH_LIBS(yp_get_default_domain, [nsl resolv])
	PA_HAVE_TCPWRAPPERS
],:)


AH_TEMPLATE([WITH_REGEX],
[Define if we are compiling with regex filename remapping.])

PA_WITH_BOOL(remap, 1,
[  --without-remap         disable regex-based filename remapping],
[
	AC_CHECK_HEADER(regex.h,
	[
		AC_SEARCH_LIBS(regcomp, [regex rx],
		[
			AC_DEFINE(WITH_REGEX)
			TFTPDOBJS="remap.${OBJEXT} $TFTPDOBJS"
		])
	])
],:)

TFTPD_LIBS="$LIBS"
LIBS="$common_libs"

dnl
dnl These libraries apply to the client only
dnl

AH_TEMPLATE([WITH_READLINE],
[Define if we are compiling with readline command-line editing.])

PA_WITH_BOOL(readline, 1,
[  --without-readline      disable the use of readline command-line editing],
[
	USE_READLINE=true
	AC_CHECK_HEADER(readline/readline.h,
	[
		AC_SEARCH_LIBS(readline, [readline history],
		[
			AC_DEFINE(WITH_READLINE)
		])
		AC_CHECK_HEADERS(readline/history.h)
	])
],:)

TFTP_LIBS="$LIBS"
LIBS="$common_libs"

AC_SUBST(TFTP_LIBS)
AC_SUBST(TFTPD_LIBS)
AC_SUBST(TFTPDOBJS)

AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_INSTALL

AC_CONFIG_HEADER(acconfig.h)
AC_OUTPUT(MCONFIG)