configure

#!/bin/sh -e

# hand-written configure script; autoconf is no fun
exec 3> config.h
exec 4> conf.mk
echo '#ifndef CONFIG_H' >&3
echo '#define CONFIG_H' >&3
CC=${CC-cc}

color=color.c
while [ -n "$1" ]; do
    case "$1" in
        --enable-tf-compat)
            echo "compat mode: 24-bit colors disabled"
            color=256color.c
            ;;
        *)
            echo "invalid option $1" >&2
            exit 1
            ;;
    esac
    shift
done
echo "SRCS+=    $color" >&4

printf "checking for asprintf: "
if ${CC} -o config/out config/asprintf_test.c 2>/dev/null; then
    echo "yes"
else
    echo "not found but required!"
    exit 1
fi

printf "checking for getprogname: "
if ${CC} -o config/out config/getprogname_test.c 2>/dev/null; then
    echo "yes"
else
    echo '#define getprogname() ""' >&3
    echo "no"
fi

printf "checking for strlcpy: "
if ${CC} -o config/out config/strlcpy_test.c 2>/dev/null; then
    echo "yes"
else
    echo "size_t strlcpy(char *, const char *, size_t);" >&3
    echo "SRCS+=    strlcpy.c" >&4
    echo "no"
fi

printf "checking for libtls: "
if ${CC} -o config/out config/libtls_test.c -ltls 2>/dev/null; then
    echo 'LDADD+=   -ltls' >&4
    echo 'HAVE_LIBTLS=1' >&4
    echo "yes"
else
    echo "no - building statically linked copy"
fi

echo '#endif' >&3