#!/bin/bash

# Slackware build script for unifdef

# Written by B. Watson (urchlay@slackware.uk)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20260927 bkw:
# - Fix build on -current. Upstream used constexpr for a variable
#   name, which became a C keyword in C23. Build with -std=gnu17
#   as a workaround. Thanks to Chris Maness for reporting this.
# - Patch one of the tests, so 'make test' works as root.
# The package doesn't change, so not bumping BUILD.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=unifdef
VERSION=${VERSION:-2.12}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz --no-same-owner
cd $PRGNAM-$VERSION
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

# Patch fixes the outeperm.sh test, which fails if run as root.
patch -p1 < $CWD/fixtests.diff

make CFLAGS="$SLKCFLAGS -std=gnu17" DESTDIR=$PKG
make test

mkdir -p $PKG/usr/bin $PKG/usr/man/man1

# manual install = less code than hacking 'make install'
install -s -m0755 $PRGNAM $PKG/usr/bin
install -m0755 ${PRGNAM}all.sh $PKG/usr/bin/${PRGNAM}all
gzip -9c < $PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz
ln -s $PRGNAM.1.gz $PKG/usr/man/man1/${PRGNAM}all.1.gz

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
gzip -9 Changelog # it's bloody enormous
cp -a COPYING README Changelog.gz $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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