Copy the lib_pyston directory into cmake

CMakeLists.txt

@@ -135,6 +135,7 @@ link_directories(${CMAKE_BINARY_DIR}/libunwind/lib)
 link_directories(${LLVM_LIBRARY_DIRS})
 
 add_subdirectory(lib_python)
+add_subdirectory(lib_pyston)
 add_subdirectory(src)
 add_subdirectory(test/test_extension)
 add_subdirectory(test/unittests)

Makefile

@@ -749,10 +749,10 @@ $(call link,_release,$(OPT_OBJS),$(LDFLAGS_RELEASE),$(LLVM_RELEASE_DEPS))
 else
 .PHONY: pyston_dbg pyston_release
 pyston_dbg:
-	$(NINJA) -C $(HOME)/pyston-build-dbg pyston copy_stdlib $(NINJAFLAGS)
+	$(NINJA) -C $(HOME)/pyston-build-dbg pyston copy_stdlib copy_libpyston $(NINJAFLAGS)
 	ln -sf $(HOME)/pyston-build-dbg/pyston pyston_dbg
 pyston_release:
-	$(NINJA) -C $(HOME)/pyston-build-release pyston copy_stdlib $(NINJAFLAGS)
+	$(NINJA) -C $(HOME)/pyston-build-release pyston copy_stdlib copy_libpyston $(NINJAFLAGS)
 	ln -sf $(HOME)/pyston-build-release/pyston pyston_release
 endif
 

lib_pyston/CMakeLists.txt

+# Copy any changed lib_pyston sources:
+file(GLOB_RECURSE LIBPYSTON_SRCS . "*.py")
+SET(LIBPYSTON_TARGETS "")
+foreach(STDLIB_FILE ${LIBPYSTON_SRCS})
+    file(RELATIVE_PATH FN_REL ${CMAKE_SOURCE_DIR} ${STDLIB_FILE})
+    set(TARGET ${CMAKE_BINARY_DIR}/${FN_REL})
+
+    add_custom_command(OUTPUT ${TARGET} COMMAND
+                       ${CMAKE_COMMAND} -E copy_if_different ${STDLIB_FILE} ${TARGET}
+                       DEPENDS ${STDLIB_FILE}
+                       COMMENT "Copying ${FN_REL}"
+                       )
+                   set(LIBPYSTON_TARGETS ${LIBPYSTON_TARGETS} ${TARGET})
+endforeach(STDLIB_FILE)
+add_custom_target(copy_libpyston ALL DEPENDS ${LIBPYSTON_TARGETS})
+