libraries/qwt: Add optional qt4 support.

Signed-off-by: B. Watson <yalhcru@gmail.com>

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

2 files changed, 24 insertions, 19 deletions

diff --git a/libraries/qwt/README b/libraries/qwt/README
index 917a92ae05..e3035aa7de 100644
--- a/libraries/qwt/README
+++ b/libraries/qwt/README
@@ -1,6 +1,7 @@
-Qwt is an extension to the Qt GUI library from Troll Tech AS.  
-The Qwt library contains widgets and components which are 
-primarily useful for technical and scientifical purposes.
-It includes a 2-D plotting widget, different kinds of sliders, 
-and much more.
+Qwt is an extension to the Qt GUI library from Troll Tech AS.  The Qwt
+library contains widgets and components which are primarily useful
+for technical and scientifical purposes. It includes a 2-D plotting
+widget, different kinds of sliders, and much more.
 
+Optional dependency: qt4. If installed, the package will include qt4
+support.
diff --git a/libraries/qwt/qwt.SlackBuild b/libraries/qwt/qwt.SlackBuild
index 8f7f990411..1e5fabaf93 100644
--- a/libraries/qwt/qwt.SlackBuild
+++ b/libraries/qwt/qwt.SlackBuild
@@ -8,6 +8,9 @@
 # Modified by the Slackbuilds.org project
 # Maintained 2015-2021 by Christoph Willing <chris.willing@linux.com>
 
+# 20220222 bkw: Modified by SlackBuilds.org:
+# - add optional qt4 support.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=qwt
@@ -24,9 +27,6 @@ if [ -z "$ARCH" ]; then
   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
@@ -62,9 +62,18 @@ patch -p0 < $CWD/patch-6.1.2-config.diff
 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 \
+ -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
- -exec chmod 644 {} \;
+ -exec chmod 644 {} \+
+
+if [ -x /usr/lib$LIBDIRSUFFIX/qt4/bin/qmake ]; then
+  mkdir -p build-qt4
+  cd build-qt4
+    qmake-qt4 .. LIBDIRSUFFIX=$LIBDIRSUFFIX
+    make CFLAGS+="$SLKCFLAGS" CXXFLAGS+="$SLKCFLAGS -std=c++11 -fPIC"
+    make install INSTALL_ROOT=$PKG
+  cd ..
+fi
 
 mkdir -p build
 cd build
@@ -75,10 +84,8 @@ cd ..
 
 # Rationalise the pkgconfig default filenames
 ( cd $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig 
-  ln -s qwt.pc Qwt6.pc
-  if [ -f Qt5Qwt6.pc ]; then
-    ln -s Qt5Qwt6.pc qwt-qt5.pc
-  fi
+  [ -f qwt.pc ]     && ln -s qwt.pc Qwt6.pc
+  [ -f Qt5Qwt6.pc ] && ln -s Qt5Qwt6.pc qwt-qt5.pc
 )
 
 find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
@@ -86,17 +93,14 @@ find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
 
 mv $PKG/usr/doc/man $PKG/usr
 rm -f $PKG/usr/man/man3/_tmp*
-( cd $PKG/usr/man
-  find . -type f -exec gzip -9 {} \;
-  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
-)
+gzip -9 $PKG/usr/man/man*/*
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/examples
 cp -a build/examples/bin $PKG/usr/doc/$PRGNAM-$VERSION/examples/
 cp -a examples/* $PKG/usr/doc/$PRGNAM-$VERSION/examples/
 
 mv $PKG/usr/doc/html $PKG/usr/doc/$PRGNAM-$VERSION
-cp -a CHANGES* COPYING INSTALL README $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a CHANGES* COPYING README $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 
 mkdir -p $PKG/install