clean up makefile

packages/cuda/Makefile.in

@@ -67,6 +67,11 @@ install: all
 	for h in $(BDD_PROLOG); do $(INSTALL_DATA) $$h $(DESTDIR)$(SHAREDIR); done
 	$(INSTALL_PROGRAM) $(SOBJS) $(DESTDIR)$(YAPLIBDIR)
 
-clean:
-	rm -f *.o *~ $(OBJS) $(SOBJS) *.BAK
+install-examples:
+
+clean:
+	rm -f *.o *~ $(OBJS) *.BAK
+
+realclean:
+	rm -f $(SOBJS) Makefile
 

packages/cuda/configure.in

@@ -14,14 +14,14 @@ CUDA_LDFLAGS=""
 CUDA_CPPFLAGS=""
 if test "$yap_cv_cuda" = no 
 then
-  ENABLE_CUDA="@# "
+  PKG_CUDA=""
 else
   AC_PATH_PROG(NVCC, [nvcc], [no], [$yap_cv_cuda/bin])
   if test "$yap_cv_cuda" = no
   then
-    ENABLE_CUDA="@# "
+    PKG_CUDA=""
   else
-    ENABLE_CUDA=""
+    PKG_CUDA="packages/cuda"
     case "$target_os" in
      *darwin*)
        CUDA_LDFLAGS="$LDFLAGS"
@@ -37,7 +37,7 @@ else
  fi
 fi
 
-AC_SUBST(ENABLE_CUDA)
+AC_SUBST(PKG_CUDA)
 AC_SUBST(NVCC)
 AC_SUBST(CUDA_SHLIB_LD)
 AC_SUBST(CUDA_CPPFLAGS)
@@ -45,3 +45,5 @@ AC_SUBST(CUDA_LDFLAGS)
 
 AC_CONFIG_FILES([packages/cuda/Makefile])
 
+mkdir -p  packages/cuda
+