dnl Process this file with autoconf to produce a configure script.
AC_INIT(byteorder.h)
AC_CONFIG_HEADER(config.h)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_SUBST(SHELL)

AC_CHECK_PROG(HAVE_REMSH, remsh, 1, 0)
AC_DEFINE_UNQUOTED(HAVE_REMSH, $HAVE_REMSH)

AC_HEADER_DIRENT
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(sys/fcntl.h sys/select.h fcntl.h sys/time.h sys/unistd.h unistd.h utime.h grp.h)
AC_CHECK_HEADERS(compat.h sys/param.h ctype.h sys/wait.h sys/ioctl.h)
AC_CHECK_HEADERS(sys/filio.h string.h stdlib.h sys/socket.h sys/mode.h)

AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(short)

AC_C_INLINE

AC_TYPE_SIGNAL
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_STRUCT_ST_RDEV
AC_CHECK_TYPE(ino_t,unsigned)

echo $ac_n "checking for errno in errno.h... $ac_c"
AC_TRY_COMPILE([#include <errno.h>],[int i = errno],
echo yes; AC_DEFINE(HAVE_ERRNO_DECL),
echo no)

AC_FUNC_MEMCMP
AC_FUNC_UTIME_NULL
AC_CHECK_FUNCS(mmap munmap waitpid getcwd strdup strerror chown chmod mknod)
AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
AC_CHECK_FUNCS(memmove getopt_long lchown vsnprintf setsid glob strpbrk)

echo $ac_n "checking for working fnmatch... $ac_c"
AC_TRY_RUN([#include <fnmatch.h>
main() { exit(fnmatch("*.o", "x.o", 0) == 0? 0: 1); }],
echo yes;AC_DEFINE(HAVE_FNMATCH), 
echo no)

echo $ac_n "checking for long long ... $ac_c"
AC_TRY_RUN([#include <stdio.h>
main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
echo yes;AC_DEFINE(HAVE_LONGLONG), 
echo no)

echo $ac_n "checking for off64_t ... $ac_c"
AC_TRY_RUN([#include <stdio.h>
#include <sys/stat.h>
main() { struct stat64 st; off64_t s; if (sizeof(off_t) == sizeof(off64_t)) return 1; exit((lstat64("/dev/null", &st)==0)?0:1); }],
echo yes;AC_DEFINE(HAVE_OFF64_T), 
echo no)

echo $ac_n "checking for short ino_t ... $ac_c"
AC_TRY_RUN([#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
main() { if (sizeof(ino_t) < sizeof(unsigned int)) return 0; return 1; }],
echo yes;AC_DEFINE(HAVE_SHORT_INO_T), 
echo no)

echo $ac_n "checking for unsigned char ... $ac_c"
AC_TRY_RUN([#include <stdio.h>
main() { char c; c=250; exit((c > 0)?0:1); }],
echo yes;AC_DEFINE(HAVE_UNSIGNED_CHAR), 
echo no)

echo $ac_n "checking for broken readdir ... $ac_c"
AC_TRY_RUN([#include <sys/types.h>
#include <dirent.h>
main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
di->d_name[0] == 0) return 0; return 1;} ],
echo yes - you are using the broken /usr/ucb/cc;AC_DEFINE(HAVE_BROKEN_READDIR), 
echo no)

echo $ac_n "checking for utimbuf ... $ac_c"
AC_TRY_COMPILE([#include <sys/types.h>
#include <utime.h>],
[struct utimbuf tbuf;  tbuf.actime = 0; tbuf.modtime = 1; return utime("foo.c",&tbuf);],
echo yes;AC_DEFINE(HAVE_UTIMBUF), 
echo no)

# The following test taken from the cvs sources
# If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
# The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
# libsocket.so which has a bad implementation of gethostbyname (it
# only looks in /etc/hosts), so we only look for -lsocket if we need
# it.
AC_CHECK_FUNC(connect, :, 
[case "$LIBS" in
*-lnsl*) ;;
*) AC_CHECK_LIB(nsl_s, printf) ;;
esac
case "$LIBS" in
*-lnsl*) ;;
*) AC_CHECK_LIB(nsl, printf) ;;
esac
case "$LIBS" in
*-lsocket*) ;;
*) AC_CHECK_LIB(socket, connect) ;;
esac
case "$LIBS" in
*-linet*) ;;
*) AC_CHECK_LIB(inet, connect) ;;
esac
dnl We can't just call AC_CHECK_FUNCS(connect) here, because the value
dnl has been cached.
if test "$ac_cv_lib_socket_connect" = "yes" || 
   test "$ac_cv_lib_inet_connect" = "yes"; then
  ac_cv_func_connect=yes
  AC_DEFINE(HAVE_CONNECT)
fi])


AC_OUTPUT(Makefile lib/dummy zlib/dummy)