#!/bin/bash
#
#  libpth is free software; you can redistribute it and/or modify it under the
#  terms of the GNU General Public License as published by the Free Software
#  Foundation; either version 2 of the License, or any later version.
#
#  libpth is distributed in the hope that it will be useful, but WITHOUT ANY
#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
#  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along with
#  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#
# SlackBuild for pth (GNU Portable Threads)
# http://www.gnu.org/software/pth/
#
# Author: Luis ( luis at riseup d0t net )
#

# Look for slackbuildrc
if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
elif [ -f /etc/slackbuildrc ]; then
  source /etc/slackbuildrc
fi

# Set variables
CWD="$(pwd)"
SRC_NAME="pth"
PKG_NAME="libpth"
ARCH=${ARCH:=i486}
SRC_VERSION=${VERSION:=2.0.7}
PKG_VERSION="$(echo "$SRC_VERSION" | tr '[[:blank:]-]' '_')"
BUILD=${BUILD:=1ls}
SRC_DIR=${SRC_DIR:=$CWD}/$PKG_NAME
TMP=${TMP:=/tmp}
PKG=${PKG:=$TMP/package-$PKG_NAME}
REPOS=${REPOS:=$TMP}
PREFIX=${PREFIX:=/usr}
PKG_SRC="$TMP/$SRC_NAME-$SRC_VERSION"
CONF_OPTIONS=${CONF_OPTIONS:=--mandir=$PREFIX/man}
NUMJOBS=${NUMJOBS:=-j4}

# Set system libraries' path and optmization flags based on $ARCH
LIBDIR="$PREFIX/lib"

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mcpu=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
  LIBDIR="$PREFIX/lib64"
fi

# Set error codes (used by createpkg)
ERROR_WGET=31;      ERROR_MAKE=32;      ERROR_INSTALL=33
ERROR_MD5=34;       ERROR_CONF=35;      ERROR_HELP=36
ERROR_TAR=37;       ERROR_MKPKG=38;     ERROR_GPG=39
ERROR_PATCH=40;     ERROR_VCS=41;       ERROR_MKDIR=42

# Clean up any leftovers of previous builds
rm -rf "$PKG_SRC" 2> /dev/null
rm -rf "$PKG" 2> /dev/null

# Create directories if necessary
mkdir -p "$SRC_DIR" || exit $ERROR_MKDIR
mkdir -p "$PKG" || exit $ERROR_MKDIR
mkdir -p "$REPOS" || exit $ERROR_MKDIR

# Dowload source if necessary
SRC="$SRC_NAME-$SRC_VERSION.tar.gz"
URL="ftp://ftp.gnu.org/gnu/pth/$SRC"

if [ ! -s "$SRC_DIR/$SRC" ] || ! gzip -t "$SRC_DIR/$SRC" 2> /dev/null; then
  wget "$URL" -O "$SRC_DIR/$SRC" || exit $ERROR_WGET
fi

# Import minimized signing key from
# ftp://ftp.gnu.org/gnu/gnu-keyring.gpg
gpg --import << EOKEY || exit $ERROR_GPG
-----BEGIN PGP PUBLIC KEY BLOCK-----
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=rGe0
-----END PGP PUBLIC KEY BLOCK-----
EOKEY

# Dowload source's signature if necessary and check it
if [ ! -s "$SRC_DIR/$SRC.sig" ]; then
  wget "$URL.sig" -O "$SRC_DIR/$SRC.sig" || exit $ERROR_WGET
fi

gpg --verify "$SRC_DIR/$SRC.sig" "$SRC_DIR/$SRC" || exit $ERROR_GPG

# Untar
cd "$TMP"
tar --no-same-owner --no-same-permissions -xvf "$SRC_DIR/$SRC" || exit $ERROR_TAR
cd "$PKG_SRC"

# Configure
CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS" \
  ./configure \
  --prefix="$PREFIX" --libdir="$LIBDIR" "$CONF_OPTIONS" || exit $ERROR_CONF

# Compile
make "$NUMJOBS" || exit $ERROR_MAKE
make test

# Install
make install DESTDIR="$PKG" || exit $ERROR_INSTALL

# Strip binaries
( cd "$PKG"
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
)

# Compress and link manpages
if [ -d "$PKG/$PREFIX/man" ]; then
  ( cd "$PKG/$PREFIX/man"
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# Install documentation
DOCS="ANNOUNCE AUTHORS COPYING ChangeLog HACKING HISTORY INSTALL NEWS PORTING \
      README SUPPORT TESTS THANKS USERS"
mkdir -p "$PKG/usr/doc/$PKG_NAME-$PKG_VERSION" || exit $ERROR_MKDIR
cp -a $DOCS "$PKG/usr/doc/$PKG_NAME-$PKG_VERSION"

# Add package description (slack-desc)
mkdir -p "$PKG/install" || exit $ERROR_MKDIR
cat << EODESC > "$PKG/install/slack-desc"
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

      |-----handy-ruler--------------------------------------------------------|
libpth: libpth (The GNU Portable Threads)
libpth:
libpth: Pth is a very portable POSIX/ANSI-C based library for Unix platforms
libpth: which provides non-preemptive priority-based scheduling for multiple
libpth: threads of execution ("multithreading") inside server applications.
libpth: All threads run in the same address space of the server application,
libpth: but each thread has its own individual program-counter, run-time
libpth: stack, signal mask and errno variable.
libpth:
libpth: For more information, http://www.gnu.org/software/pth/
libpth:
EODESC

# Build the package
cd "$PKG"
makepkg -l y -c n "$REPOS/$PKG_NAME-$PKG_VERSION-$ARCH-$BUILD.tgz" || exit $ERROR_MKPKG

# Delete source and build directories if requested
if [ "$CLEANUP" == "yes" ]; then
  rm -rf "$PKG_SRC" "$PKG"
fi