AC_INIT(vizservers, 0.1, rappture@nanohub.org)

VERSION=0.0.1
AC_SUBST(VERSION)

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

AC_SUBST(LIB_SEARCH_DIRS)

AC_PROG_INSTALL
AC_PROG_MAKE_SET

dnl find and test the C compiler
AC_PROG_CC
AC_LANG_C

AC_PROG_CXX
AC_LANG_CPLUSPLUS

SUBDIRS="nanoscale nanovis pymolproxy"
AC_SUBST(SUBDIRS)

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=/usr/lib])

TCL_LIB_DIR=""
TCL_LIB=""
TCL_LIB_VERSION=""
AC_MSG_CHECKING([for tcl binary libraries])
if test "x$with_tcllib" != "x" ; then
    if test -f "$with_tcllib"
    then
        if test -n `basename $with_tcllib | grep libtcl[0-9]\.[0-9].so`
        then
            TCL_LIB_DIR="$with_tcllib"
        fi
    else
        if test -d "$with_tcllib"
        then
            if test -x "$with_tcllib/`ls $with_tcllib | grep libtcl[0-9]\.[0-9]\.so$`"
            then
                TCL_LIB_DIR="$with_tcllib"
            else
                AC_MSG_RESULT([no])
                AC_MSG_ERROR([cannot find tcl binary libraries, try using --with-tcllib])
            fi
        else
            AC_MSG_RESULT([no])
            AC_MSG_ERROR([cannot find tcl binary libraries inside $with_tcllib, try using --with-tcllib])
        fi
    fi
else
    AC_CHECK_HEADERS([tcl.h], [],
           [AC_MSG_ERROR([cannot find tcl.h, try using --with-tclinclude])])
fi
# TCL_LIB=$(ls ${TCL_LIB_DIR} | grep -o libtcl[0-9]\.[0-9])
# TCL_LIB=`ls ${TCL_LIB_DIR} | awk '/libtcl([0-9]\.?[0-9])?\.so/ { print }'`
# TCL_LIB=`ls ${TCL_LIB_DIR} | sed -e '/libtcl([0-9]\.?[0-9])?\.so$/ {p}'`
# TCL_LIB_VERSION=$(echo ${TCL_LIB} | sed -e s/libtcl// -e s/\.so//)
AC_MSG_RESULT([${TCL_LIB_DIR}/${TCL_LIB}])
# echo TCL_LIB_DIR = ${TCL_LIB_DIR}
# echo TCL_LIB = ${TCL_LIB}
# echo TCL_LIB_VERSION = ${TCL_LIB_VERSION}
AC_SUBST(TCL_LIB_DIR)
AC_SUBST(TCL_LIB)
AC_SUBST(TCL_LIB_VERSION)

AC_ARG_WITH(
    [tclinclude],
    [AS_HELP_STRING([--with-tclinclude[=DIR]],
        [location of tcl.h header file @<:@default=/usr/include@:>@])],
    [with_tclinclude=$withval],
    [with_tclinclude=/usr/include])

TCL_INCL_DIR=""
AC_MSG_CHECKING([for tcl.h])
if test "x$with_tclinclude" != "x" ; then
    if test -f "$with_tclinclude"
    then
        if test `basename $with_tclinclude` = "tcl.h"
        then
            TCL_INCL_DIR="`dirname $with_tclinclude`"
        fi
    else
        if test -d "$with_tclinclude"
        then
            if test -r "$with_tclinclude/tcl.h"
            then
                TCL_INCL_DIR="$with_tclinclude"
            else
                if test -r "$with_tclinclude/tcl${TCL_LIB_VERSION}/tcl.h"
                then
                    TCL_INCL_DIR="$with_tclinclude/tcl${TCL_LIB_VERSION}"
                else
                    AC_MSG_RESULT([no])
                    AC_MSG_ERROR([cannot find tcl.h, try using --with-tclinclude])
                fi
            fi
        else
            AC_MSG_RESULT([no])
            AC_MSG_ERROR([cannot find tcl.h inside $with_tclinclude, try using --with-tclinclude])
        fi
    fi
else
    AC_CHECK_HEADERS([tcl.h], [],
           [AC_MSG_ERROR([cannot find tcl.h, try using --with-tclinclude])])
fi
AC_MSG_RESULT([${TCL_INCL_DIR}])
AC_SUBST(TCL_INCL_DIR)

AC_ARG_WITH(
    [rappture],
    [AS_HELP_STRING([--with-rappture[=DIR]],
        [location of rappture files lib/librappture2.a and include/rappture2/rappture2.h @<:@default=/usr@:>@])],
    [with_rappture=$withval],
    [with_rappture=/usr])

RP2_INCL_DIR=""
RP_DIR=""
AC_MSG_CHECKING([for rappture])
if test "x$with_rappture" != "x" ; then
    if test -f "$with_rappture"
    then
        AC_MSG_RESULT([no])
        AC_MSG_ERROR([please provide --with-rappture with directory])
    else
        if test -d "$with_rappture"
        then
            if test -r "$with_rappture/include/rappture2/rappture2.h" -a -r "$with_rappture/lib/librappture2.a"
            then
                RP2_INCL_DIR="$with_rappture/include/rappture2"
                RP_DIR="$with_rappture"
            else
                AC_MSG_RESULT([no])
                AC_MSG_ERROR([cannot find rappture2.h and librappture2.a, try using --with-rappture])
            fi
        else
            AC_MSG_RESULT([no])
            AC_MSG_ERROR([cannot find rappture2.h and librappture2.a inside $with_rappture, try using --with-rappture])
        fi
    fi
else
    AC_CHECK_HEADERS([rappture.h], [],
           [AC_MSG_ERROR([cannot find rappture.h, try using --with-rappture])])
fi
AC_MSG_RESULT([${RP_DIR}/include])
AC_SUBST(RP2_INCL_DIR)
AC_SUBST(RP_DIR)

dnl AC_MSG_CHECKING(tcl library version)
dnl TCL=`AC_TRY_RUN([#include <tcl.h>
dnl         int main() {printf("tcl%s",TCL_VERSION);return(0);}],,
dnl         echo "tcl8.4", echo "tcl8.4")`
dnl AC_MSG_RESULT($TCL)
dnl AC_MSG_CHECKING(tk library version)
dnl TK=`AC_TRY_RUN([#include <tk.h>
dnl         main() {printf("tk%s", TK_VERSION); exit(0);}],,
dnl         echo "tk8.4", echo "tk8.4")`
dnl AC_MSG_RESULT($TK)


AC_OUTPUT( Makefile nanoscale/Makefile nanovis/Makefile pymolproxy/Makefile start_viz.sh)