development/dwz: Added (dwarf compressor).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

development/dwz/README

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+dwz is a dwarf compressor
+
+DWARF optimization and duplicate removal tool
+
+dwz is a program that attempts to optimize DWARF debugging
+information contained in ELF shared libraries and ELF executables for
+size, by replacing DWARF information representation with equivalent
+smaller representation where possible and by reducing the amount of
+duplication using techniques from DWARF standard appendix E -
+creating DW_TAG_partial_unit compilation units (CUs) for duplicated
+information and using DW_TAG_imported_unit to import it into each CU
+that needs it.
+
+sourcecode licence is GPL2. see COPYING and COPYING.RUNTIME for more
+details.

development/dwz/dwz.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for the dwz
+
+# Copyright 2020 Tim Dickson, dickson.tim@googlemail.com
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#download from mirrors.kernel.org/sourceware/dwx/releases/
+PRGNAM=dwz
+VERSION=${VERSION:-0.13}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM
+tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
+cd $PRGNAM
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Fix man installation path (the original works due to a link in slackware from /usr/share/man
+# to /usr/man , but we may as well install it in the right place)
+sed -i 's_^mandir.*_mandir = /usr/man_g' Makefile
+make
+make install DESTDIR=$PKG
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

development/dwz/dwz.info

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+PRGNAM="dwz"
+VERSION="0.13"
+HOMEPAGE="https://sourceware.org/git/?p=dwz.git;a=summary"
+DOWNLOAD="http://mirrors.kernel.org/sourceware/dwz/releases/dwz-0.13.tar.xz"
+MD5SUM="6cb10dc92d432a5b86bc3fe36e154698"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Tim Dickson"
+EMAIL="dickson.tim@googlemail.com"
+

development/dwz/slack-desc

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+# 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 ':' except on otherwise blank lines.
+
+   |-----handy-ruler------------------------------------------------------|
+dwz: dwz (a dwarf compressor)
+dwz:
+dwz: DWARF optimization and duplicate removal tool
+dwz: dwz is a program that attempts to optimize DWARF debugging
+dwz: information contained in ELF shared libraries and ELF executables for
+dwz: size, by replacing DWARF information representation with equivalent
+dwz: smaller representation where possible and by reducing the amount of
+dwz: duplication using techniques from DWARF standard appendix E -
+dwz: creating DW_TAG_partial_unit compilation units (CUs) for duplicated
+dwz: information and using DW_TAG_imported_unit to import it into each CU
+dwz: that needs it. see https://sourceware.org/git/?p=dwz.git;a=summary