configure

#!/bin/sh

set -e

help() {
    echo "Usage: $0 [OPTION]... [VAR=VALUE]..."
    echo
    echo 'Configuration:'
    echo '  --help                  display this help and exit'
    echo '  --host=HOST             cross-compile to build programs to run on HOST'
    echo
    echo 'Installation directories:'
    echo '  --prefix=PREFIX         install architecture-independent files in PREFIX'
    echo '  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX'
    echo
    echo 'Fine tuning of the installation directories:'
    echo '  --bindir=DIR            user executables [EPREFIX/bin]'
    echo '  --sbindir=DIR           system admin executables [EPREFIX/sbin]'
    echo '  --libexecdir=DIR        program executables [EPREFIX/libexec]'
    echo '  --libdir=DIR            object code libraries [EPREFIX/lib]'
    echo '  --includedir=DIR        C header files [PREFIX/include]'
    echo '  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]'
    echo '  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]'
    echo '  --docdir=DIR            documentation root [DATAROOTDIR/doc/<name>]'
    echo '  --htmldir=DIR           html documentation [DOCDIR]'
    echo
    echo 'Optional Features:'
    echo '  --enable-silent-rules   less verbose build output (undo: "make V=1")'
    echo '  --disable-silent-rules  verbose build output (undo: "make V=0")'
    $make -f $(dirname "$0")/Makefile help-config-list | while read c
    do
        case $c in
            -*) echo "  --enable-${c#?}" ;;
            +*) echo "  --disable-${c#?}" ;;
        esac
    done
    exit 0
}

make=make
if command -v gmake >/dev/null; then
    make=gmake
fi

for param; do
    case "$param" in
        --host=*) param="CROSS=${param#--host=}-" ;;
        --exec-prefix=*) param="exec_${param#--exec-}" ;;
        --disable-silent-rules) param="VERBOSE=1" ;;
        --enable-silent-rules) param="VERBOSE=" ;;
        --disable-*) param="have_${param#--disable-}=" ;;
        --enable-*) param="have_${param#--enable-}=y" ;;
        --help) help ;;
    esac
    set -- "$@" "${param#--}"
    shift
done

for env in CC CXX CPP AR PKG_CONFIG CFLAGS CXXFLAGS CPPFLAGS LDFLAGS; do
    eval val=\"\$$env\"
    if [ -n "$val" ]; then
        set -- $env="$val" "$@"
    fi
done

$make -f $(dirname "$0")/Makefile "$@" configure