# Copyright 2016 Julian Ospald <hasufell@posteo.de>
# Distributed under the terms of the GNU General Public License v2

require cmake

SUMMARY="Cryptographic library for embedded systems"
HOMEPAGE="https://tls.mbed.org/"
DOWNLOADS="https://github.com/ARMmbed/mbedtls/archive/mbedtls-${PV}.tar.gz"

LICENCES="Apache-2.0"
SLOT="0"
PLATFORMS="~amd64 ~x86"

MYOPTIONS="
    havege [[ description = [ Enable the HAVEGE random generator,
                              not suitable for virtualized environments! ] ]]
    threads
"

DEPENDENCIES="
    build+run:
        sys-libs/zlib
    test:
        dev-lang/perl
"

WORK=${WORKBASE}/${PN}-${PNV}

CMAKE_SRC_CONFIGURE_PARAMS=(
    -DENABLE_PROGRAMS=OFF
    -DUSE_SHARED_MBEDTLS_LIBRARY=ON
    -DINSTALL_MBEDTLS_HEADERS=ON
    -DLIB_INSTALL_DIR="/usr/$(exhost --target)/lib"
    -DUSE_STATIC_MBEDTLS_LIBRARY=OFF
    -DENABLE_ZLIB_SUPPORT=ON
)

CMAKE_SRC_CONFIGURE_TESTS=(
    '-DENABLE_TESTING=ON'
)

enable_mbedtls_option() {
    local myopt="$@"
    # check that config.h syntax is the same at version bump
    sed -i \
        -e "s://#define ${myopt}:#define ${myopt}:" \
        include/mbedtls/config.h || die
}

src_prepare() {
    enable_mbedtls_option MBEDTLS_ZLIB_SUPPORT
    option havege && enable_mbedtls_option MBEDTLS_HAVEGE_C
    option threads && enable_mbedtls_option MBEDTLS_THREADING_C
    option threads && enable_mbedtls_option MBEDTLS_THREADING_PTHREAD
}

src_test() {
    LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${ECMAKE_BUILD_DIR}/library" \
        cmake_src_test
}