configure

#!/bin/bash

function add_to {

    if ! echo " $2 " | grep -q " $1 " ; then
        echo $2 $1
    else
        echo $2
    fi
}

inc_dir_guess=( /usr/include/libxml2 /usr/local/include /usr/include /usr/pkg/include /opt/local/include $@)

inc_dirs=

for header in unzip/unzip.h SDL2/SDL.h SDL2/SDL_net.h SDL2/SDL_mixer.h GL/glew.h GL/gl.h png.h zlib.h openssl/sha.h libxml/tree.h cairo/cairo.h curses.h ; do

    dir_present=
    for dir in ${inc_dir_guess[*]} ; do

        inc_path=$dir/$header
        if [ -f $inc_path ] ; then

            echo $inc_path found
            dir_present=$dir
            break
        fi
    done

    if [ "$dir_present" ] ; then
        inc_dirs=`add_to $dir_present "$inc_dirs"`
    else
        echo not found: $header
        exit 1
    fi
done

lib_dir_guess=( /usr/lib /usr/lib64 /usr/local/lib /usr/local/lib64 /usr/pkg/lib /usr/pkg/lib64 /opt/local/lib \
                /opt/local/lib64 /usr/lib/x86-linux-gnu /usr/lib/x86_64-linux-gnu $@)

lib_dirs=

for lib in SDL2 SDL2_net SDL2_mixer GL GLEW png unzip crypto xml2 cairo ncurses ; do

    dir_present=
    for dir in in ${lib_dir_guess[*]} ; do

        lib_path=$dir/lib$lib.so
        if [ -f $lib_path ] ; then

            echo $lib_path found
            dir_present=$dir
            break
        fi
    done

    if [ "$dir_present" ] ; then
        lib_dirs=`add_to $dir_present "$lib_dirs"`
    else
        echo not found: -l$lib
        exit 1
    fi
done

config=make.config
echo -e "LIBDIRS = $lib_dirs\nINCDIRS = $inc_dirs" > $config