dnl     $Id: configure.in,v 1.5 2001/09/01 00:57:59 robs Exp $
dnl
dnl     This file is an input file used by the GNU "autoconf" program to
dnl     generate the file "configure", which is run during the build
dnl     to configure the system for the local environment.

# This file and the script it generates is used by both the devkit
# and the Perl FCGI module.  Although each has slightly different
# requirements, this allows the build environment to maintained by one
# file set.  The FCGI build is idendified by the presence of the
# file FCGI.XL.  If its not found, its consider a devkit build.

AC_INIT

if test -f "FCGI.XL"; then
	FCGI_BUILD='true'
fi

if test "$FCGI_BUILD"; then
	AC_CONFIG_HEADER([fcgi_config.h])
else
	AC_CONFIG_HEADER([include/fcgi_config.h])
fi

AC_PROG_CC
AC_PROG_CPP 
AC_PROG_INSTALL 
AC_PROG_RANLIB
AC_CHECK_TOOL([AR], [ar], [ar])

AC_CHECK_LIB([nsl],       [main]) ac_cv_lib_nsl=ac_cv_lib_nsl_main
AC_CHECK_LIB([resolv],    [main]) ac_cv_lib_resolv=ac_cv_lib_resolv_main
AC_CHECK_LIB([socket], 	  [main]) ac_cv_lib_socket=ac_cv_lib_socket_main
AC_CHECK_LIB([dnet_stub], [main]) ac_cv_lib_dnet_stub=ac_cv_lib_dnet_stub_main
AC_CHECK_LIB([ieee], 	  [main]) ac_cv_lib_ieee=ac_cv_lib_ieee_main

AC_CHECK_LIB([pthread],	  [main], 
	[AC_DEFINE([HAVE_LIBPTHREAD], [1],
			   [Define if you have the pthread library])
	 AC_SUBST([HAVE_LIBPTHREAD])]) 
ac_cv_lib_pthread=ac_cv_lib_pthread_main

AC_CHECK_TYPE([ssize_t], [int]) 

AC_MSG_CHECKING([for sun_len in sys/un.h])
AC_EGREP_HEADER([sun_len], [sys/un.h],
    [AC_MSG_RESULT([yes])
     AC_DEFINE([HAVE_SOCKADDR_UN_SUN_LEN], [1],
     		   [Define if sockaddr_un in sys/un.h contains a sun_len component])],
    AC_MSG_RESULT([no]))

AC_REPLACE_FUNCS([strerror])

AC_MSG_CHECKING([for fpos_t in stdio.h])
AC_EGREP_HEADER([fpos_t], [stdio.h],
    [AC_MSG_RESULT([yes])
     AC_DEFINE([HAVE_FPOS], [1], [Define if the fpos_t typedef is in stdio.h])],
    AC_MSG_RESULT([no]))

AC_CHECK_HEADERS([sys/socket.h netdb.h netinet/in.h arpa/inet.h sys/time.h limits.h sys/param.h unistd.h])

AC_MSG_CHECKING([for a fileno() prototype in stdio.h])
AC_EGREP_HEADER([fileno], [stdio.h], 
	[AC_MSG_RESULT([yes]) 
	 AC_DEFINE([HAVE_FILENO_PROTO], [1], 
	 	       [Define if there's a fileno() prototype in stdio.h])],
	AC_MSG_RESULT([no]))

if test "$HAVE_SYS_SOCKET_H"; then
    AC_MSG_CHECKING([for socklen_t in sys/socket.h])
    AC_EGREP_HEADER([socklen_t], [sys/socket.h],
        [AC_MSG_RESULT([yes])
         AC_DEFINE([HAVE_SOCKLEN], [1],
        		   [Define if the socklen_t typedef is in sys/socket.h])],
       AC_MSG_RESULT([no]))
fi

#--------------------------------------------------------------------
#  Do we need cross-process locking on this platform?
#--------------------------------------------------------------------
AC_MSG_CHECKING([whether cross-process locking is required by accept()])
case "`uname -sr`" in
    IRIX\ 5.* | SunOS\ 5.* | UNIX_System_V\ 4.0)	
		AC_MSG_RESULT([yes])
		AC_DEFINE([USE_LOCKING], [1], 
				  [Define if cross-process locking is required by accept()])
    	;;
    *)
		AC_MSG_RESULT([no])
	    ;;
esac

#--------------------------------------------------------------------
#  Does va_arg(arg, long double) crash the compiler?
#  hpux 9.04 compiler does and so does Stratus FTX (uses HP's compiler)
#--------------------------------------------------------------------
AC_MSG_CHECKING([whether va_arg(arg, long double) crashes the compiler])
AC_TRY_COMPILE([#include <stdarg.h>],
   [long double lDblArg; va_list arg; lDblArg = va_arg(arg, long double);],
   AC_MSG_RESULT([no]),
   [AC_MSG_RESULT([yes])
    AC_DEFINE([HAVE_VA_ARG_LONG_DOUBLE_BUG], [1],
   			  [Define if va_arg(arg, long double) crashes the compiler])])

AC_C_CONST 
AC_C_INLINE

#--------------------------------------------------------------------
#  This is a little hokie in that it avoids including config.guess
#  and config.sub in the distribution, but its been working so far.
#  Windows builds don't run configure so we should be safe fixing
#  this to 'unix' (at least for now).
#--------------------------------------------------------------------
SYSTEM=unix
AC_SUBST([SYSTEM])

L=a
AC_SUBST([L])

if test "$GCC"; then
	CCDEFS="$CCDEFS -Wall -Wmissing-prototypes"
fi

AC_SUBST([CCDEFS])

AC_OBJEXT
AC_SUBST([EXEEXT]) 

if test -z "$FCGI_BUILD"; then
	AC_CONFIG_FILES([Makefile 
					 libfcgi/Makefile 
					 cgi-fcgi/Makefile 
					 examples/Makefile])
fi

AC_OUTPUT