# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
# Maintainer: Thomas Bächler <thomas@archlinux.org>
# Maintainer: Anatol Pomozov <anatol.pomozov@gmail.com>
# Contributor: Keshav Amburay <(the ddoott ridikulus ddoott rat) (aatt) (gemmaeiil) (ddoott) (ccoomm)>

pkgname=syslinux
pkgver=6.04.pre2.r11.gbf6db5b4
#_tag=syslinux-$pkgver
_commit=bf6db5b4
pkgrel=4
pkgdesc='Collection of boot loaders that boot from FAT, ext2/3/4 and btrfs filesystems, from CDs and via PXE'
url='https://www.syslinux.org/'
arch=(x86_64)
backup=(boot/syslinux/syslinux.cfg)
install=syslinux.install
license=(GPL2)
# syslinux build system is a mess of submakes that does not work with -jN
# efi32/com32 do not like Arch cflags/ldflags, though it would be nice to have the flags for userspace tools
options=(!makeflags !buildflags)
makedepends=(git python nasm upx asciidoc)
makedepends_x86_64=(lib32-glibc) # efi32 needs it
optdepends=('perl-crypt-passwdmd5: For md5pass'
            'perl-digest-sha1:     For sha1pass'
            'mtools:               For mkdiskimage and syslinux support'
            'gptfdisk:             For GPT support'
            'util-linux:           For isohybrid'
            'efibootmgr:           For EFI support'
            'dosfstools:           For EFI support')

# The syslinux-install_update script is maintained at https://gist.github.com/pyther/772138
# Script not yet updated for syslinux-efi
source=(git+https://repo.or.cz/syslinux.git#commit=$_commit
        syslinux.cfg
        syslinux-install_update
        0002-gfxboot-menu-label.patch
        0005-gnu-efi-version-compatibility.patch
        0017-single-load-segment.patch
        0004-gnu-efi-from-arch.patch
        0016-strip-gnu-property.patch
        0018-prevent-pow-optimization.patch
        0025-reproducible-build.patch
        0005-Workaround-multiple-definition-of-symbol-errors.patch
        0006-Replace-builtin-strlen-that-appears-to-get-optimized.patch
)
sha256sums=('SKIP'
            'b9692be0cce43811c1b04053072ac50dd7b39bbc2ba7bcbe0e4387668af8df08'
            '5f86b5813465c48ba7bd178389aacb5149ff0b5f2467ab1772a4f862c5b15d41'
            'd1fe9084ce2526619f94b8a07b89fb0194e874beef9f202f8b974879d77f2e1a'
            '8610959df6c01568ff478ca1eb4aac301f3ba1f5bd4739daaec072865e8be2d7'
            '5b017ba5eae77caa09fa5af6ecfa0df1e7e22776b2b13c8744c6cb7ecd7ad0e9'
            'cf3c3da9300d6ea70eab5b8dca724ce03a3651bd63fb0168594dcfeb35eec11c'
            '7facb5c2abc71c9bfe01bf4db388306ed7b7abf6654009af336262839527f962'
            '755cd7062fe8495f6f62053ce664451c12ae65dba9fb5c75062a495fbe040fb1'
            '9a76f6f75a42485bc337163ba38068b09f7889bdc1a4e191408898f10de36662'
            '7e41e17e8cbc7287d6c3c9eb0a7b682cd8d3252030856b338050c21dff9bf05a'
            'd7410d0ff89a15e2a100faf1546d730e043dde15c295974564144e00a93f03a3')

_targets='bios efi64 efi32'

pkgver() {
  cd syslinux
  git describe --long | sed 's/^syslinux-//;s/\([^-]*-g\)/r\1/;s/-/./g'
}

prepare() {
  cd syslinux

  patch -p1 < ../0002-gfxboot-menu-label.patch
  patch -p1 < ../0017-single-load-segment.patch
  patch -p1 < ../0016-strip-gnu-property.patch
  patch -p1 < ../0018-prevent-pow-optimization.patch

  # TODO: use 'gnu-efi-libs' package instead of embedded sources
  # patch -p1 < ../0004-gnu-efi-from-arch.patch
  # patch -p1 < ../0005-gnu-efi-version-compatibility.patch

  patch -p1 < ../0025-reproducible-build.patch

  patch -p1 < ../0005-Workaround-multiple-definition-of-symbol-errors.patch
  patch -p1 < ../0006-Replace-builtin-strlen-that-appears-to-get-optimized.patch

  # do not swallow efi compilation output to make debugging easier
  sed 's|> /dev/null 2>&1||' -i efi/check-gnu-efi.sh

  # disable debug and development flags to reduce bootloader size
  truncate --size 0 mk/devel.mk
}

build() {
  cd syslinux
  export LDFLAGS+=--no-dynamic-linker  # workaround for binutils 2.28 http://www.syslinux.org/wiki/index.php?title=Building
  export EXTRA_CFLAGS=-fno-PIE   # to fix gpxe build
  make PYTHON=python $_targets
}

package() {
  cd syslinux
  make $_targets install INSTALLROOT="$pkgdir" SBINDIR=/usr/bin MANDIR=/usr/share/man AUXDIR=/usr/lib/syslinux

  rm -r "$pkgdir"/usr/lib/syslinux/{com32,dosutil,syslinux.com}
  install -D -m644 COPYING "$pkgdir"/usr/share/licenses/syslinux/COPYING
  install -d "$pkgdir"/usr/share/doc
  cp -ar doc "$pkgdir"/usr/share/doc/syslinux

  install -d "$pkgdir"/usr/lib/syslinux/bios
  mv "$pkgdir"/usr/lib/syslinux/{*.bin,*.c32,*.0,memdisk} "$pkgdir"/usr/lib/syslinux/bios 

  install -D -m0644 ../syslinux.cfg "$pkgdir"/boot/syslinux/syslinux.cfg
  install -D -m0755 ../syslinux-install_update "$pkgdir"/usr/bin/syslinux-install_update
}
