configure.in

# Process this file with autoconf to produce a configure script.
# most of this file was taken from the output of autoscan

AC_PREREQ(2.59)
AC_INIT(tag, 0.1)
AC_CONFIG_SRCDIR([src/absorient.cpp])
AM_INIT_AUTOMAKE
AC_LANG(C++)

#AC_CONFIG_HEADER([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CXXCPP
AC_PROG_LIBTOOL

# Checks for libraries.

# Checks for header files.

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE

# Checks for library functions.
AC_HEADER_STDC

###################################################
#
#Allow the user to specify the location of TooN
#taken from libcvd

AC_ARG_WITH(TooN, [  --with-TooN=directory   Specify location for TooN ], [opt_toon_dir=$withval])

if test "$opt_toon_dir" = no
then
        AC_MSG_ERROR(TooN is not optional. Use --with-TooN=dir to specify where it can be found.)
fi

#Yes is not a useful answer. We know the answer is yes.
if test "$opt_toon_dir" = yes
then
        opt_toon_dir=
fi

#Check for TooN in a bunch of places

save_CPPFLAGS="$CPPFLAGS"
toondir="Missing"
for dir in $opt_toon_dir "$prefix/include" "../TooN" ".."
do
    if test "$dir" = ""
    then
        CPPFLAGS="$save_CPPFLAGS"
    else
        CPPFLAGS="$save_CPPFLAGS -I$dir"
    fi
    AC_MSG_CHECKING(Checking for TooN in $dir )
    AC_CHECK_HEADER([TooN/TooN.h], [toondir="$dir"], [], [])
    if test "$toondir" != Missing
    then
        AC_MSG_RESULT(found TooN in $toondir)
        break
    fi
done

if test "$toondir" = Missing
then
    AC_MSG_ERROR(TooN is not optional. Use --with-TooN=dir to specify where it can be found.)
fi

AC_CONFIG_FILES([Makefile])
AC_OUTPUT