# This is an example PKGBUILD file. Use this as a start to creating your own,
# and remove these comments. For more information, see 'man PKGBUILD'.
# NOTE: Please fill out the license field for your package! If it is unknown,
# then please put 'unknown'.

# Maintainer: Future Linux Team <future_linux@163.com>
pkgname=libcap
pkgver=2.71
pkgrel=1
pkgdesc="POSIX 1003.1e capabilities"
arch=('x86_64')
url="https://sites.google.com/site/fullycapable/"
license=('BSD-3-Clause OR GPL-2.0-only')
depends=('glibc' 'gcc-libs' 'linux-pam')
makedepends=('linux-api-headers' 'go')
options=('!lto')
source=(https://www.kernel.org/pub/linux/libs/security/linux-privs/libcap2/${pkgname}-${pkgver}.tar.xz
    libcap-2.71-cgo-flags.patch)
sha256sums=(b7006c9af5168315f35fc734bf1a8d2aa70766bd8b8c4340962e05b19c35b900
    436594bed416dfa1a3a3a9df17350555c1f995d480d0ebbb739d7a29656ccc5a)

# NOTE: with CGO_ENABLED we need all relevant make options in build(), check() and package() otherwise the package is not reproducible
_common_make_options=(
    CGO_CPPFLAGS="$CPPFLAGS"
    CGO_CFLAGS="$CFLAGS"
    CGO_CXXFLAGS="$CXXFLAGS"
    CGO_LDFLAGS="$LDFLAGS"
    CGO_REQUIRED="1"
    GOFLAGS="-buildmode=pie -mod=readonly -modcacherw"
    GO_BUILD_FLAGS="-ldflags '-compressdwarf=false -linkmode=external'"
)

prepare() {
    cd ${pkgname}-${pkgver}

    # ensure to use CGO_ENABLED all the way (so that we can have full RELRO)
    patch -Np1 -i ${srcdir}/libcap-2.71-cgo-flags.patch

}

build() {
    cd ${pkgname}-${pkgver}

    export GOPATH=${PWD}

    make "${_common_make_options[@]}" \
        DYNAMIC=yes                   \
        KERNEL_HEADERS=/usr/include   \
        lib=lib64                     \
        prefix=/usr
    make -C pam_cap
}

package() {
    cd ${pkgname}-${pkgver}

    export GOPATH=${PWD}

    make "${_common_make_options[@]}"  \
        DESTDIR=${pkgdir}              \
        RAISE_SETFCAP=no               \
        lib=lib64                      \
        prefix=/usr                    \
        install

    install -vDm644 pam_cap/capability.conf ${pkgdir}/etc/security/capability.conf
}