[CMake] output of add_custom_command as target in Makefile

[Dave Yost]

In this example, how do I get
   make foo.cc
to work?

0 Thu 16:56:19 yost DaveBook ~/p/c++/cmake/custom-command-target
369 Z% bundle CMakeLists.txt genFoo
#!/usr/bin/env unbundle
# See http://yost.com/computers/bundle/
======== CMakeLists.txt
cmake_minimum_required(VERSION 3.3.0)

project(custom-command-target)


add_custom_command (
  OUTPUT  foo.cc
  COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/genFoo > foo.cc
  )

add_executable (foo foo.cc)

======== genFoo
#!/bin/bash

echo "
int main() {
  return 0;
}"
========
0 Thu 16:56:23 yost DaveBook ~/p/c++/cmake/custom-command-target
370 Z% cd build                                                
0 Thu 16:56:36 yost DaveBook ~/p/c++/cmake/custom-command-target/build
371 Z% cmake ..                                                
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/yost/p/c++/cmake/custom-command-target/build
0 Thu 16:56:41 yost DaveBook ~/p/c++/cmake/custom-command-target/build
372 Z% make clean                                              
0 Thu 16:56:45 yost DaveBook ~/p/c++/cmake/custom-command-target/build
373 Z% make foo.cc                                             
make: *** No rule to make target 'foo.cc'.  Stop.
2 Thu 16:56:49 yost DaveBook ~/p/c++/cmake/custom-command-target/build
374 Z% 


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