8.23. GMP-6.3.0

8.23.1. Installation of GMP

Create the PKGBUILD for the Gmp package with the following commands:

mkdir /sources/gmp
cd /sources/gmp
cat > PKGBUILD << "REALEOF"
# Maintainer: Linux From Scratch <lfs-dev@lists.linuxfromscratch.org>

pkgname="gmp"
pkgver="6.3.0"
pkgrel="1"
pkgdesc="The GMP package contains math libraries for arbitrary precision arithmetic."
arch=('x86'
      'x86_64')
url="https://www.gnu.org/software/gmp/"
license=('GPLv2'
         'GPLv3'
         'LGPLv3')
groups=('core')
depends=('gcc'
         'glibc')
makedepends=('bash'
             'binutils'
             'coreutils'
             'diffutils'
             'gawk'
             'grep'
             'm4'
             'make'
             'sed'
             'texinfo')
source=('https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz')
md5sums=('956dc04e864001a9c22429f761f2c283')
    
build() {
  cd "${pkgname}-${pkgver}"
  # Enable shadow stack support
  LDFLAGS+=' -Wl,-z,shstk'     \
  ./configure --prefix=/usr    \
              --enable-cxx     \
              --disable-static \
              --build=${CHOST} \
              --docdir="/usr/share/doc/${pkgname}-${pkgver}"

  # Fix overlinking
  sed -i -e 's/ -shared / -Wl,-O1,--as-needed\0/g' libtool

  make
  make html
}

check() {
  cd "${pkgname}-${pkgver}"
  make check 2>&1 | tee gmp-check-log

  # 1 test is known to fial in some instances
  failcount=`awk '/# FAIL:/{total+=$3} ; END{print total}' gmp-check-log`
  if $failcount -gt 1; then
      echo "Falure in check, failcount=${failcount}"
      exit 1
  fi
}

package() {
  cd "${pkgname}-${pkgver}"
  make DESTDIR="${pkgdir}" install
  make DESTDIR="${pkgdir}" install-html
}
REALEOF

Prepare the build directory for the pacman user and build the package:

chown -R root:pacman .
chmod 2775 .
chmod 664 PKGBUILD
su pacman -c 'makepkg -L --nodeps'

Add the newly created package to the central package repository:

cp gmp-6.3.0-1-$(uname -m).pkg.tar.xz \
   /srv/pacman/repos/LFS/
repo-add /srv/pacman/repos/LFS/LFS.db.tar.xz \
         /srv/pacman/repos/LFS/gmp-6.3.0-1-$(uname -m).pkg.tar.xz

Update the local cache and install the Gmp package:

pacman -Syu
pacman -S gmp --overwrite \* -dd --noconfirm

Finally, copy the source files into the source repository and clean up the build directory:

mkdir /srv/pacman/source/LFS/gmp
cp PKGBUILD /srv/pacman/source/LFS/gmp
cd /sources
rm -rf gmp