python3-xapp: Switch to meson.

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

python3-xapp/python3-xapp.SlackBuild

@@ -50,7 +50,22 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
-python3 setup.py install --root=$PKG
+mkdir build
+cd build
+  CFLAGS="$SLKCFLAGS" \
+  CXXFLAGS="$SLKCFLAGS" \
+  meson .. \
+    --buildtype=release \
+    --infodir=/usr/info \
+    --libdir=/usr/lib${LIBDIRSUFFIX} \
+    --localstatedir=/var \
+    --mandir=/usr/man \
+    --prefix=/usr \
+    --sysconfdir=/etc \
+    -Dstrip=true
+  "${NINJA:=ninja}"
+  DESTDIR=$PKG $NINJA install
+cd ..
 
 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