AC_PREREQ([2.60])
AC_INIT([nanoscale], [0.1], [rappture@nanohub.org])
AC_CONFIG_AUX_DIR(cf)
AC_CONFIG_HEADERS([config.h])

AC_ARG_WITH(
    [tcllib],
    [AS_HELP_STRING([--with-tcllib[=DIR]],
        [location of Tcl binary library libtclstubs.a @<:@default=/usr/lib@:>@])],
    [with_tcllib=$withval],
    [with_tcllib=""])

AC_ARG_WITH(
    [statsdir],
    [AS_HELP_STRING([--with-statsdir=DIR],
        [Write statistics in DIR])],
    [STATSDIR=$withval],
    [STATSDIR="/var/tmp/visservers"])

AC_ARG_WITH(
    [logdir],
    [AS_HELP_STRING([--with-logdir=DIR],
        [Write log files in DIR])],
    [LOGDIR=$withval],
    [LOGDIR="/tmp"])

#------------------------------------------------------------------------
# Handle the --prefix=... option
#------------------------------------------------------------------------

if test "${prefix}" = "NONE"; then
    prefix=/usr/local
fi
if test "${exec_prefix}" = "NONE"; then
    exec_prefix=$prefix
fi

if test "x${incdir}" == "x"; then
  incdir=${exec_prefix}/include
fi
libdir=${exec_prefix}/lib

if test "${libdir}" != "${prefix}/lib"; then
    LIB_SEARCH_DIRS="-L ${prefix}/lib -L ${libdir}"
else
    LIB_SEARCH_DIRS="-L ${libdir}"
fi

SC_CONFIG_CFLAGS

AC_PATH_X

AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PROG_LN_S
AC_PROG_MKDIR_P

dnl find and test the C compiler
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXXCPP
AC_PROG_CXX
AC_LANG_CPLUSPLUS

AC_C_BIGENDIAN

# Save the values as shell variables so that we can substitute them
# into bltHash.h for situtations where there's no bltInt.h.

LD_RPATH="";

#
# Need to check for the following dependencies:
#	Rappture headers and library (done)
#       Tcl headers and library (done)
#       GL headers and library
#       GLEW header and library
#       pthread library
#

TCL_VERSION="8.4"
for dir in \
 ${exec_prefix} \
 ${exec_prefix}/lib ; do
  tclconfig="${dir}/tclConfig.sh"
  if test -f "$tclconfig" ; then
    . $tclconfig
    break
  fi
done
TCL_INC_SPEC="$TCL_INCLUDE_SPEC"

if test "x$with_tcllib" != "x" ; then
   tclconfig="${with_tcllib}/tclConfig.sh"
   if test -f "$tclconfig" ; then
    . $tclconfig
   fi
   TCL_LIB_SPEC="-L${with_tcllib} -ltcl${TCL_VERSION}"
fi
if test "x$with_tclinclude" != "x" ; then
   TCL_INC_SPEC="-I${with_tclinclude}"
fi

AC_CHECK_HEADERS([stdio.h unistd.h stdlib.h string.h sys/types.h])
AC_CHECK_HEADERS([sys/socket.h sys/time.h netinet/in.h arpa/inet.h netdb.h])

AC_CHECK_FUNCS([accept4])
AC_CHECK_FUNCS([mkstemps])

AC_SUBST(LD_RPATH)
AC_SUBST(LOGDIR)
AC_SUBST(STATSDIR)
AC_SUBST(SUBDIRS)
AC_SUBST(TCL_INC_SPEC)
AC_SUBST(TCL_LIB_SPEC)
AC_SUBST(TCL_VERSION)

AC_OUTPUT([
   Makefile \
   renderservers.tcl \
   start_nanoscale.sh])