# Maintainer: Théophile Bastian <contact@tobast.fr>
pkgname=libdwarfpp-git
_pkgname="${pkgname%-git}"
pkgver=r289.d7df953
pkgrel=1
provides=($_pkgname)
conflicts=($_pkgname)
pkgdesc="A C++ wrapper around libdwarf"
arch=('x86_64')
url="https://github.com/stephenrkell/libdwarfpp"
license=('?')
depends=(libcxxfileno libsrk31cxx libdwarf)
makedepends=('git' 'make' 'autoconf')
install=
source=("git+https://github.com/stephenrkell/libdwarfpp"
        "https://tobast.fr/files/libdwarfpp-dies.patch"
        "https://tobast.fr/files/libdwarfpp-headers.patch")
sha1sums=('SKIP'
          '1bfc0b66e1c6bb4b0e284e29a50a1b4be6b3aa50'
          'bb6d91dc75981484814412382102c3c32664eeb5')

pkgver() {
    cd "$srcdir/${_pkgname}"
    printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
}

prepare() {
    cd "$srcdir/${_pkgname}"
    git apply ../libdwarfpp-dies.patch
    git apply ../libdwarfpp-headers.patch
    sed -i 's@libdwarf.h@libdwarf/libdwarf.h@' include/dwarfpp/libdwarf.hpp
}

build() {
    # Why the hell are those things needed :(
    export LIBCXXFILENO_CXXFLAGS=" "
    export LIBSRK31CXX_CXXFLAGS=" "
    export LIBCXXFILENO_LIBS="-lc++fileno"
    export LIBSRK31CXX_LIBS="-lsrk31c++"
    libdwarf_include=$(echo "#include <libdwarf/libdwarf.h>" \
        | gcc -H -fsyntax-only -x c - 2>&1 \
        | awk '{ print $2 }' \
        | xargs dirname)
    libdwarf_lib=$(ldconfig -p \
        | grep 'libdwarf.so$' \
        | sed 's/^.*=> //g' \
        | xargs dirname)

    if [ -z "$libdwarf_include" ]; then
        >&2 echo "libdwarf.h not found"
        exit 1
    fi

    if [ -z "$libdwarf_lib" ]; then
        >&2 echo "libdwarf.so not found"
        exit 1
    fi

    # Use python2
    pydir=$(mktemp -d)
    ln -s "$(which python2)" "$pydir/python"
    export PATH="$pydir:$PATH"

    cd "$srcdir/${_pkgname}"

    autoreconf -i
	./configure --prefix=/usr \
        --with-libdwarf-includes="$libdwarf_include" \
        --with-libdwarf-libs="$libdwarf_lib"
	make -j

    rm -fr "$pydir"
}

package() {
    cd "$srcdir/${_pkgname}"
	make DESTDIR="$pkgdir/" install
}