1#!/usr/local/bin/python3.8
2
3# Copyright 2006 Vladimir Prus.
4# Distributed under the Boost Software License, Version 1.0. (See
5# accompanying file LICENSE_1_0.txt or copy at
6# http://www.boost.org/LICENSE_1_0.txt)
7
8import BoostBuild
9from time import sleep
10
11
12t = BoostBuild.Tester()
13
14t.write("jamroot.jam", """
15import pch ;
16project : requirements <warnings-as-errors>on ;
17cpp-pch pch : pch.hpp : <toolset>msvc:<source>pch.cpp <include>. ;
18cpp-pch pch-afx : pch.hpp : <define>HELLO <toolset>msvc:<source>pch.cpp <include>. ;
19exe hello : hello.cpp pch : <include>. ;
20exe hello-afx : hello-afx.cpp pch-afx : <define>HELLO <include>. ;
21""")
22
23t.write("pch.hpp.bad", """
24THIS WILL NOT COMPILE
25""")
26
27# Note that pch.hpp is written after pch.hpp.bad, so its timestamp will not be
28# less than timestamp of pch.hpp.bad.
29sleep(1)
30t.write("pch.hpp", """
31#undef HELLO
32class TestClass
33{
34public:
35    TestClass( int, int ) {}
36};
37""")
38
39t.write("pch.cpp", """#include <pch.hpp>
40""")
41
42for name in ("hello.cpp", "hello-afx.cpp"):
43    t.write(name, """#include <pch.hpp>
44int main() { TestClass c(1, 2); }
45""")
46
47t.run_build_system()
48t.expect_addition("bin/$toolset/debug*/hello.exe")
49t.expect_addition("bin/$toolset/debug*/hello-afx.exe")
50
51
52# Now make the header unusable, without changing timestamp. If everything is OK,
53# B2 will not recreate PCH, and compiler will happily use pre-compiled
54# header, not noticing that the real header is bad.
55
56t.copy_preserving_timestamp("pch.hpp.bad", "pch.hpp")
57
58t.rm("bin/$toolset/debug*/hello.obj")
59t.rm("bin/$toolset/debug*/hello-afx.obj")
60
61t.run_build_system()
62t.expect_addition("bin/$toolset/debug*/hello.obj")
63t.expect_addition("bin/$toolset/debug*/hello-afx.obj")
64
65t.cleanup()
66