* update brltty to 6.7-2

brltty/PKGBUILD

@@ -81,16 +81,12 @@ build() {
     --disable-stripping
   )
 
-  case "${CARCH}" in
-    powerpc64le) configure_options+=(--disable-ocaml-bindings) ;;
-  esac
-
   # fat-lto-objects is required for non-mangled static libs
   CFLAGS+=" -ffat-lto-objects"
 
   cd $pkgbase-${pkgbase^^}-$pkgver
   ./configure "${configure_options[@]}"
-  make
+  make -j1
   # make brlapi.jar deterministic
   find . -type f -iname "*.jar" -exec strip-nondeterminism {} \;
 }