libraries/qt5: Added optional documentation and example options.

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

libraries/qt5/README

@@ -10,3 +10,11 @@ slackbuilds.org)
 Note: To build Qt5 with Pulseadio then pass USEPULSE=yes to the slackbuild.
 
   USEPULSE=yes ./qt5.SlackBuild
+
+Note2: To build documentation pass DOCS=yes to the slackbuild.
+
+  DOCS=yes ./qt5.SlackBuild
+
+Note3: To build examples pass EXAMPLES=yes to the slackbuild
+
+  EXAMPLES=yes ./qt5.SlackBuild

libraries/qt5/qt5.SlackBuild

@@ -47,7 +47,7 @@
 
 PRGNAM=qt5
 VERSION=${VERSION:-5.4.0}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -127,6 +127,13 @@ else
   sed -i '/qtwebengine/d' qt.pro
 fi
 
+# Build examples. Default is no.
+if [ "${EXAMPLES:-no}" == "yes" ]; then
+  BUILD_EXAMPLES=""
+else
+  BUILD_EXAMPLES="-nomake examples"
+fi
+
 export CFLAGS="$SLKCFLAGS"
 export CXXFLAGS="$SLKCFLAGS"
 export OPENSOURCE_CXXFLAGS="$SLKCFLAGS"
@@ -153,18 +160,30 @@ export OPENSOURCE_CXXFLAGS="$SLKCFLAGS"
   -xcb \
   -glib \
   -accessibility \
-  -nomake examples \
   -no-separate-debug-info \
   -no-pch \
   -no-rpath \
   -no-strip \
   -release \
   $RELOCATIONS \
-  $PULSE
+  $PULSE \
+  $BUILD_EXAMPLES
 
 make
 make install INSTALL_ROOT=$PKG
 
+# Install documentation. Default is not to install documentation.
+if [ "${DOCS:-no}" == "yes" ]; then
+  # Recreate Makefiles in order to use the just compiled qdoc.
+  for doc in $(find . -name "Makefile*" | xargs egrep "^\s/usr/lib${LIBDIRSUFFIX}/qt5/bin/" \
+    | cut -d':' -f1)
+  do
+    rm -fv $doc
+  done
+  make docs
+  make install_docs INSTALL_ROOT=$PKG
+fi
+
 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