graphics/unpaper: Update for 7.0.0

Build system has moved to meson, so rewrite the SlackBuild based on the
standard meson template.

The manpage now requires "sphinx" to be built, which is a large python
package with many dependencies. Patch out the building of same by
default, and add the optional dep of Sphinx and the option SPHINX=true
for those that want it.

Update the README file to reflect this build option/optional dep, and
re-paragraph it to make it more readable.

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

graphics/unpaper/README

@@ -3,21 +3,30 @@ especially for book pages that have been scanned from previously
 created photocopies. The main purpose is to make scanned book pages
 better readable on screen after conversion to PDF. Additionally,
 unpaper might be useful to enhance the quality of scanned pages before
-performing optical character recognition (OCR). unpaper tries to clean
-scanned images by removing dark edges that appeared through scanning
-or copying on areas outside the actual page content (e.g. dark areas
-between the left-hand-side and the right-hand-side of a double-sided
-book-page scan). The program also tries to detect disaligned
-centering and rotation of pages and will automatically straighten
-each page by rotating it to the correct angle. This process is called
-"deskewing". Note that the automatic processing will sometimes fail.
-It is always a good idea to manually control the results of unpaper
-and adjust the parameter settings according to the requirements of
-the input. Each processing step can also be disabled individually
-for each sheet. Input and output files can be in either .pbm, .pgm or
+performing optical character recognition (OCR).
+
+unpaper tries to clean scanned images by removing dark edges that
+appeared through scanning or copying on areas outside the actual page
+content (e.g. dark areas between the left-hand-side and the
+right-hand-side of a double-sided book-page scan). The program also
+tries to detect disaligned centering and rotation of pages and will
+automatically straighten each page by rotating it to the correct
+angle. This process is called "deskewing".
+
+Note that the automatic processing will sometimes fail.  It is always
+a good idea to manually control the results of unpaper and adjust the
+parameter settings according to the requirements of the input. Each
+processing step can also be disabled individually for each sheet.
+Input and output files can be in either .pbm, .pgm or
 .ppm format, thus generally in .pnm format, as also used by the Linux
 scanning tools scanimage and scanadf. Conversion to PDF can e.g. be
 achieved with the Linux tools pgm2tiff, tiffcp and tiff2pdf.
 
 This is a fork of the original unpaper software by D.E. "Flameeyes"
 Petteno'.
+
+BUILD OPTIONS:
+
+SPHINX => set to 'true' to build the manpage for unpaper, which now
+requires "Sphinx" (available in SBo), which is a large python package
+with many dependencies. Thus, it is disabled by default.

graphics/unpaper/unpaper-7.0.0-no-sphinx.patch

@@ -0,0 +1,21 @@
+diff -Naur unpaper-7.0.0.orig/meson.build unpaper-7.0.0/meson.build
+--- unpaper-7.0.0.orig/meson.build	2023-08-12 12:37:30.389999033 -0400
++++ unpaper-7.0.0/meson.build	2023-08-12 12:37:57.307998930 -0400
+@@ -36,17 +36,6 @@
+     install : true,
+ )
+ 
+-sphinx = find_program('sphinx-build', required: true, version: '>= 3.4')
+-
+-custom_target(
+-    'man',
+-    command: [sphinx, '-b', 'man', join_paths(meson.source_root(), 'doc'), '@OUTDIR@'],
+-    input: ['doc/conf.py', 'doc/index.rst', 'doc/unpaper.1.rst'],
+-    output: 'unpaper.1',
+-    install: true,
+-    install_dir: join_paths(get_option('prefix'), get_option('mandir'), 'man1'),
+-)
+-
+ pymod = import('python')
+ python = pymod.find_installation(required: false, modules: ['pytest', 'PIL'], disabler: true)
+ 

graphics/unpaper/unpaper.SlackBuild

@@ -3,7 +3,7 @@
 # Slackware build script for unpaper
 
 # Copyright 2008-2014 LukenShiro, Italy
-# Copyright 2019 Logan Rathbone <poprocks@gmail.com>
+# Copyright 2019-2023 Logan Rathbone <poprocks@gmail.com>
 #
 # All rights reserved.
 #
@@ -24,7 +24,7 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
-# CHANGELOG
+# CHANGELOG - Discontinued as of 7.0.0; see git log.
 #
 # 20191107 Logan Rathbone <poprocks@gmail.com> 6.1-1
 # - Update to 6.1
@@ -39,7 +39,7 @@
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=unpaper
-VERSION=${VERSION:-6.1}
+VERSION=${VERSION:-7.0.0}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -48,13 +48,11 @@ if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
     i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
+    # Unless $ARCH is already set, use uname -m for all other archs:
        *) ARCH=$( uname -m ) ;;
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -66,10 +64,16 @@ OUTPUT=${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
@@ -78,33 +82,58 @@ rm -rf $PKG
 mkdir -p $TMP $PKG $OUTPUT
 cd $TMP
 rm -rf $PRGNAM-$VERSION
-tar xvf $CWD/$PRGNAM-$VERSION.tar.?z*
+tar xvf $CWD/$PRGNAM-$VERSION.tar.?z
+
 cd $PRGNAM-$VERSION
+
+# Building the manpage requires "sphinx" which is a huge python package
+# with many dependencies. Since there is no meson_options.txt in unpaper
+# at this time which allows us to optionally disable this, patch it out
+# unless the SPHINX option is set to true.
+
+SPHINX=${SPHINX:-false}
+
+if [ "$SPHINX" != "true" ]; then
+  patch -p1 < $CWD/unpaper-7.0.0-no-sphinx.patch
+fi
+
 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 \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -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 {} \;
 
+mkdir build
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
-./configure \
-  --prefix=/usr \
+meson setup \
+    --buildtype=plain \
+    --infodir=/usr/info \
+    --libdir=/usr/lib${LIBDIRSUFFIX} \
+    --localstatedir=/var \
     --mandir=/usr/man \
-  --docdir=/usr/doc/$PRGNAM-$VERSION \
-  --build=$ARCH-slackware-linux
-make
-make install DESTDIR=$PKG
+    --prefix=/usr \
+    --sysconfdir=/etc \
+    -Dstrip=true \
+    build/
+${NINJA:=ninja} -v -C build/
+DESTDIR=$PKG $NINJA -C build/ install
+
+rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la
 
 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
 
+if [ "$SPHINX" = "true" ]; then
   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
+fi
 
-mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/
-cp AUTHORS COPYING NEWS README.md $PKG/usr/doc/$PRGNAM-$VERSION/
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  AUTHORS NEWS README.md LICENSES/ \
+  $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 
 mkdir -p $PKG/install

graphics/unpaper/unpaper.info

@@ -1,8 +1,8 @@
 PRGNAM="unpaper"
-VERSION="6.1"
+VERSION="7.0"
 HOMEPAGE="https://www.flameeyes.com/projects/unpaper"
-DOWNLOAD="https://www.flameeyes.com/files/unpaper-6.1.tar.xz"
-MD5SUM="b5e79645765be7c7ae0e003697bdb9e2"
+DOWNLOAD="https://www.flameeyes.com/files/unpaper-7.0.0.tar.xz"
+MD5SUM="24be66b049a27b6f841cc7444ceff9cc"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""