dnl Process this file with autoconf to produce a configure script.
AC_REVISION([$Id$])
AC_PREREQ(2.1)dnl		dnl Minimum Autoconf version required.
AC_INIT(vpath.c)dnl		dnl A distinctive file to look for in srcdir.
AC_CONFIG_HEADER(config.h)
AC_CONFIG_SUBDIRS(glob)		dnl Run configure in glob subdirectory.

# We want these before the checks, so the checks can modify their values.
test -z "$CFLAGS" && CFLAGS=-g AC_SUBST(CFLAGS)
test -z "$LDFLAGS" && LDFLAGS=-g AC_SUBST(LDFLAGS)

AC_PROG_MAKE_SET
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_CPP			dnl Later checks need this.
AC_AIX
AC_ISC_POSIX
AC_MINIX
AC_HEADER_STDC
AC_HEADER_DIRENT
AC_TYPE_UID_T			dnl Also does gid_t.
AC_TYPE_GETGROUPS
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_CHECK_HEADERS(unistd.h limits.h sys/param.h fcntl.h string.h memory.h \
	         sys/timeb.h)
AC_PROG_CC_C_O
AC_C_CONST			dnl getopt needs this.
AC_HEADER_STAT

AC_SUBST(LIBOBJS)

AC_DEFUN(AC_CHECK_SYMBOL, [dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_check_symbol_$1, [dnl
AC_TRY_LINK(, [extern char *sys_siglist[]; puts(*sys_siglist);],
	    ac_cv_check_symbol_$1=yes, ac_cv_check_symbol_$1=no)])
if test "$ac_cv_check_symbol_$1" = yes; then
changequote(,)dnl
  ac_tr_symbol=`echo $1 | tr '[a-z]' '[A-Z]'`
changequote([,])dnl
  AC_DEFINE_UNQUOTED(HAVE_${ac_tr_symbol})
fi
AC_MSG_RESULT($ac_cv_check_symbol_$1)])dnl

AC_CHECK_FUNCS(getdtablesize psignal mktemp \
	       dup2 getcwd sigsetmask getgroups setlinebuf \
	       seteuid setegid setreuid setregid strerror)
AC_CHECK_SYMBOL(sys_siglist)
AC_CHECK_SYMBOL(_sys_siglist)
AC_FUNC_ALLOCA
AC_FUNC_VFORK
AC_FUNC_SETVBUF_REVERSED
AC_FUNC_GETLOADAVG
AC_FUNC_STRCOLL

if test $ac_cv_func_getdtablesize = no; then
  AC_MSG_CHECKING(for sysconf (_SC_OPEN_MAX))
  AC_CACHE_VAL(make_cv_sysconf_open_max, [dnl
  AC_TRY_LINK([#include <unistd.h>], [int max = sysconf (_SC_OPEN_MAX);],
	      [make_cv_sysconf_open_max=yes], [make_cv_sysconf_open_max=no])])
  if test $make_cv_sysconf_open_max = yes; then
    AC_DEFINE(HAVE_SYSCONF_OPEN_MAX)
  fi
  AC_MSG_RESULT($make_cv_sysconf_open_max)
fi

# Check out the wait reality.
AC_CHECK_HEADERS(sys/wait.h) AC_CHECK_FUNCS(waitpid wait3)
AC_MSG_CHECKING(for union wait)
AC_CACHE_VAL(make_cv_union_wait, [dnl
AC_TRY_LINK([#include <sys/types.h>
#include <sys/wait.h>],
	    [union wait status; int pid; pid = wait (&status);
#ifdef WEXITSTATUS
/* Some POSIXoid systems have both the new-style macros and the old
   union wait type, and they do not work together.  If union wait
   conflicts with WEXITSTATUS et al, we don't want to use it at all.  */
if (WEXITSTATUS (status) != 0) pid = -1;
#ifdef WTERMSIG
/* If we have WEXITSTATUS and WTERMSIG, just use them on ints.  */
-- blow chunks here --
#endif
#endif
#ifdef HAVE_WAITPID
/* Make sure union wait works with waitpid.  */
pid = waitpid (-1, &status, 0);
#endif
],
	    [make_cv_union_wait=yes], [make_cv_union_wait=no])])
if test "$make_cv_union_wait" = yes; then
  AC_DEFINE(HAVE_UNION_WAIT)
fi
AC_MSG_RESULT($make_cv_union_wait)

AC_DECL_SYS_SIGLIST

# The presence of the following is not meant to imply
# that make necessarily works on those systems.
AC_CHECK_LIB(sun, getpwnam)

AC_SUBST(REMOTE) REMOTE=stub
AC_ARG_WITH(customs, [export jobs with the Customs daemon (NOT SUPPORTED)],
[REMOTE=cstms LIBS="$LIBS libcustoms.a"])

echo checking for location of SCCS get command
if test -f /usr/sccs/get; then
  SCCS_GET=/usr/sccs/get
  AC_DEFINE(SCCS_GET, "/usr/sccs/get")
else
  SCCS_GET=get
  AC_DEFINE(SCCS_GET, "get")
fi
ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
if ( /usr/sccs/admin -n s.conftest || admin -n s.conftest ) >/dev/null 2>&1 &&
   test -f s.conftest; then
  # We successfully created an SCCS file.
  echo checking if SCCS get command understands -G
  if $SCCS_GET -Gconftoast s.conftest >/dev/null 2>&1 &&
     test -f conftoast; then
    AC_DEFINE(SCCS_GET_MINUS_G)
  fi
fi
rm -f s.conftest conftoast

AC_OUTPUT(Makefile build.sh, [
# Makefile uses this timestamp file to know when to remake Makefile,
# build.sh, and glob/Makefile.
touch stamp-config])

dnl Local Variables:
dnl comment-start: "dnl "
dnl comment-end: ""
dnl comment-start-skip: "\\bdnl\\b\\s *"
dnl compile-command: "make configure config.h.in"
dnl End: