configure

#!/bin/sh
#
# Copyright (c) 2013, Alexey Degtyarev <alexey@renatasystems.org>.
# All rights reserved.
#
# Detect various compile-time options and create config.h.
#
# $Id$

set -e

LC_ALL=C
export LC_ALL

CC=${CC:-cc}

AUTO_CONF_H="gost3411-2012-config.h"
AUTO_CONF_MK="auto/Makefile"

cat > ${AUTO_CONF_H}.t < /dev/null
cat > ${AUTO_CONF_MK}.t < /dev/null

if [ -z "${PLATFORM}" ]; then
    SYSTEM=`uname -s 2>/dev/null`

    RELEASE=`uname -r 2>/dev/null`

    MACHINE=`uname -m 2>/dev/null`

    PLATFORM="$SYSTEM:$RELEASE:$MACHINE";

    case "$SYSTEM" in
        MINGW32_* | MINGW64_* | MSYS_*)
            PLATFORM=win32
        ;;
    esac
fi

export PLATFORM

echo "building for $PLATFORM"

case "$PLATFORM" in
    Linux:*)
        . auto/os/linux
    ;;
esac

for file in auto/header/*
do
    env CC=${CC} sh ${file} >> ${AUTO_CONF_H}.t 2>/dev/null
done

for file in auto/mk/*
do
    env CC=${CC} sh ${file} >> ${AUTO_CONF_MK}.t 2>/dev/null
done

cat <<EOF >${AUTO_CONF_MK}
CC=${CC}
CFLAGS=${INCLUDES} ${CFLAGS} ${CC_OS_FLAGS}
SOURCES=${SOURCES}
EOF

cat ${AUTO_CONF_MK}.t >> ${AUTO_CONF_MK} && rm -f ${AUTO_CONF_MK}.t

cat >>${AUTO_CONF_MK} <<"EOF" 

compile:
	$(CC) $(CFLAGS) -o gost3411-2012 $(SOURCES)
EOF

mv ${AUTO_CONF_H}.t ${AUTO_CONF_H}

if [ ! -z "${SUPERCOP}" ]; then
    cat >api.h <<EOF
#define CRYPTO_BYTES 64
#define CRYPTO_VERSION "`cat VERSION`"
EOF
fi