m4_define([upcase],`echo $1 | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`)dnl

dnl love_FIND_FUNC(func, includes, arguments)
dnl kind of like AC_CHECK_FUNC, but with headerfiles
AC_DEFUN([love_FIND_FUNC], [

AC_MSG_CHECKING([for $1])
AC_CACHE_VAL(ac_cv_love_func_$1,
[
AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]],[[$1($3)]])],
[eval "ac_cv_love_func_$1=yes"],[eval "ac_cv_love_func_$1=no"])])

eval "ac_res=\$ac_cv_love_func_$1"

if false; then
	AC_CHECK_FUNCS($1)
fi
# $1
eval "ac_tr_func=HAVE_[]upcase($1)"

case "$ac_res" in
	yes)
	AC_DEFINE_UNQUOTED($ac_tr_func)
	AC_MSG_RESULT([yes])
	;;
	no)
	AC_MSG_RESULT([no])
	;;
esac


])



AC_CHECK_HEADERS([				\
	crypt.h					\
	curses.h				\
	errno.h					\
	inttypes.h				\
	netdb.h					\
	signal.h				\
	sys/bitypes.h				\
	sys/bswap.h				\
	sys/file.h				\
	sys/stropts.h				\
	sys/timeb.h				\
	sys/times.h				\
	sys/uio.h				\
	sys/un.h				\
	sys/utsname.h				\
	term.h					\
	termcap.h				\
	time.h					\
	timezone.h				\
	ttyname.h
])

AC_CHECK_FUNCS([				\
	atexit					\
	cgetent					\
	inet_ntop				\
	inet_aton				\
	gethostname				\
	getnameinfo				\
	gai_strerror				\
	iruserok				\
	putenv					\
	rcmd					\
	readv					\
	sendmsg					\
	setitimer				\
	socket					\
	strlwr					\
	strncasecmp				\
	strptime				\
	strsep					\
	strsep_copy				\
	strtok_r				\
	strupr					\
	swab					\
	umask					\
	uname					\
	unsetenv				\
	closefrom				\
	hstrerror				\
	err					\
	errx					\
	warnx					\
	flock					\
	getaddrinfo				\
	freeaddrinfo				\
	gai_strerror				\
	writev
])

love_FIND_FUNC(bswap16, [#ifdef HAVE_SYS_BSWAP_H
#include <sys/bswap.h>
#endif], 0)

love_FIND_FUNC(bswap32, [#ifdef HAVE_SYS_BSWAP_H
#include <sys/bswap.h>
#endif], 0)


dnl AC_HAVE_TYPE(TYPE,INCLUDES)
AC_DEFUN([AC_HAVE_TYPE], [
AC_REQUIRE([AC_HEADER_STDC])
cv=`echo "$1" | sed 'y%./+- %__p__%'`
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL([ac_cv_type_$cv],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
$2]],
[[$1 foo;]])],
[eval "ac_cv_type_$cv=yes"],
[eval "ac_cv_type_$cv=no"]))dnl
ac_foo=`eval echo \\$ac_cv_type_$cv`
AC_MSG_RESULT($ac_foo)
if test "$ac_foo" = yes; then
  ac_tr_hdr=HAVE_`echo $1 | sed 'y%abcdefghijklmnopqrstuvwxyz./- %ABCDEFGHIJKLMNOPQRSTUVWXYZ____%'`
if false; then
	AC_CHECK_TYPES($1)
fi
  AC_DEFINE_UNQUOTED($ac_tr_hdr, 1, [Define if you have type `$1'])
fi
])

AC_HAVE_TYPE([sa_family_t],[#include <sys/socket.h>])
AC_HAVE_TYPE([socklen_t],[#include <sys/socket.h>])
AC_HAVE_TYPE([struct sockaddr], [#include <sys/socket.h>])
AC_HAVE_TYPE([struct sockaddr_storage], [#include <sys/socket.h>])
AC_HAVE_TYPE([struct addrinfo], [#include <netdb.h>])
AC_HAVE_TYPE([struct ifaddrs], [#include <ifaddrs.h>])


AC_DEFUN([AC_KRB_STRUCT_WINSIZE], [
AC_MSG_CHECKING(for struct winsize)
AC_CACHE_VAL(ac_cv_struct_winsize, [
ac_cv_struct_winsize=no
for i in sys/termios.h sys/ioctl.h; do
AC_EGREP_HEADER(
struct[[ 	]]*winsize,dnl
$i, ac_cv_struct_winsize=yes; break)dnl
done
])
if test "$ac_cv_struct_winsize" = "yes"; then
  AC_DEFINE(HAVE_STRUCT_WINSIZE, 1, [define if struct winsize is declared in sys/termios.h])
fi
AC_MSG_RESULT($ac_cv_struct_winsize)
AC_EGREP_HEADER(ws_xpixel, termios.h, 
	AC_DEFINE(HAVE_WS_XPIXEL, 1, [define if struct winsize has ws_xpixel]))
AC_EGREP_HEADER(ws_ypixel, termios.h, 
	AC_DEFINE(HAVE_WS_YPIXEL, 1, [define if struct winsize has ws_ypixel]))
])

AC_KRB_STRUCT_WINSIZE


AC_CHECK_DECL(h_errno, 
              [AC_DEFINE(HAVE_DECL_H_ERRNO,1,whether h_errno is declared)], [], [
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif])

# these are disabled unless heimdal is found below
SMB_MODULE_DEFAULT(KERBEROS_LIB, NOT)
SMB_BINARY_ENABLE(asn1_compile, NO)
SMB_BINARY_ENABLE(compile_et, NO)

AC_PROG_LEX
AC_PROG_YACC

AC_CHECK_TYPES(u_int32_t)
AC_CHECK_TYPES(u_int16_t)
AC_CHECK_TYPES(u_int8_t)

# to enable kerberos, unpack a heimdal source tree in the heimdal directory
# of the samba source tree
if test -d heimdal; then
	AC_DEFINE(HAVE_KRB5,1,[Whether kerberos is available])
	CFLAGS="${CFLAGS} -Iheimdal_build -Iheimdal/lib/krb5 -Iheimdal/lib/gssapi -Iheimdal/lib/asn1 -Iheimdal/lib/com_err -Iheimdal/lib/hdb -Iheimdal/kdc"
	HAVE_KRB5=YES
	SMB_MODULE_DEFAULT(KERBEROS_LIB, STATIC)
	SMB_BINARY_ENABLE(asn1_compile, YES)
	SMB_BINARY_ENABLE(compile_et, YES)
fi

# only add getaddrinfo and related functions if needed
SMB_SUBSYSTEM_ENABLE(HEIMDAL_ROKEN_ADDRINFO, NO)
if test t$ac_cv_func_getaddrinfo != tyes; then
	SMB_SUBSYSTEM_ENABLE(HEIMDAL_ROKEN_ADDRINFO, YES)
fi