dnl ATTENTION : on HP9000/300 HPUX7.0 the configure script must be hand patched
dnl It's a /bin/sh bug who can't understand : cat <<EOF > config.status

AC_INIT(Makefile.in)
AC_PROG_CC

MANPATH=""

dnl
dnl
dnl Look for include and library place
dnl This search is unecessary if imake or xmkmf exists
dnl
dnl
test -d [/usr/local/include/X11] && CFLA="$CFLA -I[/usr/local/include]"
test -d [/usr/openwin/include/X11] && CFLA="$CFLA -I[/usr/openwin/include]"
test -d [/usr/local/X11/include] && CFLA="$CFLA -I[/usr/local/X11/include]"
test -d [/usr/local/X11R3/include] && CFLA="$CFLA -I[/usr/local/X11R3/include]"
test -d [/usr/local/X11R4/include] && CFLA="$CFLA -I[/usr/local/X11R4/include]"
test -d [/usr/local/X11R5/include] && CFLA="$CFLA -I[/usr/local/X11R5/include]"
test -d [/usr/local/X11R6/include] && CFLA="$CFLA -I[/usr/local/X11R6/include]"
test -d [/usr/local/X11R7/include] && CFLA="$CFLA -I[/usr/local/X11R7/include]"
test -f [/usr/local/lib/libX11.a] && LI="/usr/local/lib/libX11.a"
test -f [/usr/lib/libX11.a] && LI="-lX11"
test -f [/usr/openwin/lib/libX11.a] && LI="/usr/openwin/lib/libX11.a"
test -f [/usr/local/X11R3/lib/libX11.a] && LI="/usr/local/X11R3/lib/libX11.a"
test -f [/usr/local/X11R4/lib/libX11.a] && LI="/usr/local/X11R4/lib/libX11.a"
test -f [/usr/local/X11R5/lib/libX11.a] && LI="/usr/local/X11R5/lib/libX11.a"
test -f [/usr/local/X11R6/lib/libX11.a] && LI="/usr/local/X11R6/lib/libX11.a"
test -f [/usr/local/X11R7/lib/libX11.a] && LI="/usr/local/X11R7/lib/libX11.a"
dnl
dnl Create an Imakefile which print variable values 
dnl
cat <<'EOF' >Imakefile
ALL:
	@echo CFLA=\"$(CFLAGS)\"
	@echo LI=\"$(XLIB) $(LDLI)\"
	@echo XAPPLOADDIR=\"RESOURCEDIR=$(XAPPLOADDIR)\"
	@echo BINDIR=\"BINDIR=$(BINDIR)\"
	@echo SCOREDIR=\"SCOREDIR=$(LIBDIR)/xbl\"
	@echo CP=\"CP=$(CP)\"
	@echo RM=\"RM=$(RM)\"
	@echo LN=\"LN=$(LN)\"
	@echo COMPRESS=\"COMPRESS=$(COMPRESS)\"
	@echo MANPATH=\"MANPATH=$(MANPATH)\"
	@echo CC=\"$(CC)\"
	@echo LDOPTIONS=\"$(LDOPTIONS)\"
	@echo LINT=\"LINT=$(LINT)\"
	@echo LINTFLAGS=\"LINTFLAGS=$(LINTFLAGS)\"
EOF
dnl
dnl
dnl Try to run xmkmf and imake
dnl
dnl
AC_PROGRAM_CHECK(XMKMF,xmkmf,xmkmf)
test "" = "$XMKMF" && XMKMF=false
test 0 -eq `grep -c "^USE_XMKMF=YES" Makefile.in` && XMKMF=false

AC_PROGRAM_CHECK(IMAKE,imake,imake)
test "" = "$IMAKE" && IMAKE=false
IMAKE_OPTIONS=`grep "^IMAKE_OPTIONS=" Makefile.in | sed "s/IMAKE_OPTIONS=//"`
test "" = "$IMAKE_OPTIONS" && IMAKE=false

if $XMKMF 2>/dev/null >/dev/null
   then
	 echo "I will use informations from : xmkmf"
   else 
        if $IMAKE $IMAKE_OPTIONS 2>/dev/null >/dev/null
		then
		echo "I will use informations from : imake $IMAKE_OPTIONS"
	else
		dnl
		dnl Create an Makefile which print variable values 
		dnl This Makefile is used if nor imake and xmkmf exits
		dnl
		cat <<EOF >Makefile
ALL:
	@echo CFLA=\"$CFLAGS\"
	@echo LI=\"$LIBS\"
EOF
	fi
fi 2>/dev/null
dnl
dnl
dnl Eval to take variables values
dnl
dnl

eval `make ALL`
rm Makefile Imakefile

AC_SUBST(CC)
AC_SUBST(LDOPTIONS)
AC_SUBST(CP)
AC_SUBST(RM)
AC_SUBST(LN)
AC_SUBST(LINT)
AC_SUBST(LINTFLAGS)
AC_SUBST(COMPRESS)
AC_SUBST(MANPATH)
AC_SUBST(XAPPLOADDIR)
AC_SUBST(BINDIR)
AC_SUBST(SCOREDIR)
AC_SUBST(CFLA)
dnl
dnl
dnl Continue tests
dnl
dnl
AC_MODE_T
AC_SIZE_T
AC_STDC_HEADERS
AC_HAVE_HEADERS(stdlib.h)
AC_HAVE_HEADERS(unistd.h)
AC_HAVE_HEADERS(string.h)
AC_HAVE_HEADERS(fcntl.h)
AC_HAVE_HEADERS(signal.h)
AC_HAVE_HEADERS(sys/time.h)
AC_HAVE_HEADERS(time.h)
AC_HAVE_HEADERS(sys/stat.h)
AC_HAVE_HEADERS(sys/select.h)
AC_HAVE_HEADERS(malloc.h)
test -f /usr/lib/libmalloc.a && LI="$LI -lmalloc"
dnl AC_TRY_COMPILE("Prototypes",,extern int y(int z);y(5);}y(z)int z;{,CFLA="$CFLA -DHAVE_PROTOTYPES")


AC_TEST_PROGRAM([
#include <sys/time.h>
int main()
{
fd_set i,j,k ;
long t ;
struct  timeval timeout ;
t=time(0L);
timeout.tv_sec = 2 ;
timeout.tv_usec = 0 ; 
FD_ZERO(&i) ;
FD_ZERO(&j) ;
FD_ZERO(&k) ;
FD_SET(0, &i) ;
select(1,&i,&j,&k,&timeout);
return( time(0L)-t ) ;
}
], CFLA="$CFLA -DBAD_SELECT" ; echo "Bad select"
,CFLA="$CFLA -DGOOD_SELECT" ; echo "Good select"
, CFLA="$CFLA -DBAD_SELECT" ; echo "Good select")


AC_TEST_PROGRAM([
#include <signal.h>
#include <stdio.h>
#include <sys/time.h>

volatile int c = 0 ;
void fct(i) int i ; { c++ ; signal(SIGALRM, fct) ; }

int main()
{
  struct  itimerval itv ;
  struct timezone tz ;
  struct timeval tv, tv2 ;
  int i ;

  signal(SIGALRM, fct) ;
  gettimeofday(&tv, &tz) ;

  itv.it_interval.tv_sec = 0 ;
  itv.it_interval.tv_usec = 1000000/25 ;
  itv.it_value = itv.it_interval ;
  setitimer(ITIMER_REAL, &itv, NULL) ;

  do
    {
      gettimeofday(&tv2, &tz) ;

      i =  (tv2.tv_sec - tv.tv_sec)*1000000 + tv2.tv_usec - tv.tv_usec ;
    }
  while ( c!=25 && i < 1000000+itv.it_interval.tv_usec ) ;

  signal(SIGALRM, SIG_IGN) ;

  if ( c != 25 )
      {
	printf("Alarm=1/25s %d call in 1 seconds !\n", c) ;
	return(1) ;
      }
  if ( i < 1000000-itv.it_interval.tv_usec )
      {
	printf("Alarm=1/25s 25 call in %d micro-seconds !\n", i) ;
	return(1) ;
      }

  sleep(1) ;

  if ( c != 25 )
      {
	printf("Alarm called after ignoring it!\n") ;
	return(1) ;
      }

  return(0) ;
}
],CFLA="$CFLA -DALARM_WORK" ; echo "Good alarm",
CFLA="$CFLA -DALARM_DONT_WORK" ; echo "Bad alarm",
CFLA="$CFLA -DALARM_DONT_WORK" ; echo "Bad alarm"
)


# This line extract the GID of "games" from "/etc/group"
GAMES_GID=`grep "^games:" /etc/group | cut -d":" -f3`
GROUP_GID=""
AC_SUBST(GROUP_GID)
test "" != "$GAMES_GID" && GROUP_GID="GROUP_GID=$GAMES_GID"


dnl I must indicate the LDOPTIONS in LIBS before test FUNCTION
AC_HAVE_FUNCS(usleep,,)
LIBS="$LDOPTIONS $LI"
AC_HAVE_FUNCS(XGetGCValues,,)
LIBS="$LI"

dnl Next line is complex because autoconf does not like ","
dnl And on HP some option contains ","
LINTFLAGS=`echo "$LINTFLAGS" | sed 's/,/\\\,/g'`
CFLA=`echo "$CFLA" | sed 's/,/\\\,/g'`
LDOPTIONS=`echo "$LDOPTIONS" | sed 's/,/\\\,/g'`


AC_OUTPUT(Makefile)