dnl Process this file with autoconf to produce a configure script.   

AC_INIT(Makefile.am)

AC_CANONICAL_SYSTEM

dnl Select the compilers used
dnl The compiler flags are somewhat dictated by cfortran package
dnl See http://www-zeus.desy.de/~burow/cfortran/

case "$host" in
*-*-linux*)
  CXX=g++
  CC=g++
  CXXFLAGS="-Wall -g -O0 -Df2cFortran" 
  F77=g77
  FFLAGS="-g"
  LDFLAGS="-g"
  ;;
*-*-hpux*)
  CC=cc
  CXX=CC
  LD=CC
  CXXFLAGS="-g -Dextname +z"
  F77=f77
  FFLAGS="-K +ppu -g"
  LDFLAGS="-g +a1 +z"
  ;;
*-*-aix*)
  CC=xlc
  CXX=xlC
  CXXFLAGS="-g"
  F77=f77
  FFLAGS="-g"
  LDFLAGS="-g"
  ;;
*)
  AC_MSG_ERROR([default compiler unknown for this system!])
  ;;
esac     

dnl --------------------------------------------------------------
dnl We need ROOT for our GUI
dnl

AC_ARG_WITH(rootsys,
	[--with-rootsys=ROOTSYS Defines the ROOTSYS for ROOT],
	ROOTSYS=$withval, )

AC_CHECK_FILE(${ROOTSYS}/bin/root-config,
	,
        AC_MSG_ERROR([can't find ROOT! Check that ROOTSYS is set or use --with-rootsys])) 
	
ROOTLIBS="`$ROOTSYS/bin/root-config --libs`"
ROOTGLIBS="`$ROOTSYS/bin/root-config  --glibs`"  
ROOTFLAGS="`$ROOTSYS/bin/root-config --cflags`"

CXXFLAGS="$CXXFLAGS $ROOTFLAGS"

AC_SUBST(FFLAGS)
AC_SUBST(CXXFLAGS)
AC_SUBST(ROOTSYS) 
AC_SUBST(ROOTLIBS)
AC_SUBST(ROOTGLIBS)
AC_SUBST(ROOTFLAGS) 

dnl ------------------------------------------------------------------
dnl We need the Cernlib to access Paw Ntuples
dnl

AC_ARG_WITH(cernlib,
	[--with-cernlib=DIR Where to find the cernlib script],
	CERNLIB=$withval,
	CERNLIB=$CERN/$CERN_LEVEL/bin)

AC_CHECK_FILE($CERNLIB/cernlib,
	,
	AC_MSG_ERROR([can't find cernlib script ! Use --with-cernlib=DIR]))

CERNLIBRARIES="`$CERNLIB/cernlib packlib kernlib pawlib`"

AC_SUBST(CERNLIBRARIES)

dnl Check for some languages
AC_PROG_CXX

AC_PROG_F77
dnl AC_F77_LIBRARY_LDFLAGS finds the Fortran77 intrinsic and run-time libraries
dnl and sets the FLIBS variable
AC_F77_LIBRARY_LDFLAGS

AM_INIT_AUTOMAKE(roo2h,1.0)
AM_DISABLE_STATIC
AM_PROG_LIBTOOL

AC_OUTPUT(Makefile)