Fix re-scanning of built files for implicit dependencies when the -j option is used.

1 files changed, 72 insertions, 0 deletions

diff --git a/test/parallel-rescan.py b/test/parallel-rescan.py
new file mode 100644
index 0000000..4a1f27e
--- /dev/null
+++ b/test/parallel-rescan.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+#
+# __COPYRIGHT__
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
+
+"""
+Verify that when a source file is generated and the -j option is used,
+the source file correctly gets re-scanned for implicit dependencies
+after it's built.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """\
+env = Environment()
+env['BUILDERS']['COPY'] = Builder(action = Copy("$TARGET", "$SOURCE"))
+
+env.COPY('a.c', 'a.in')
+env.COPY('b.c', 'b.in')
+
+env.StaticLibrary('lib', ['a.c', 'b.c'])
+""")
+
+test.write("a.in", """\
+#include "a.h"
+""")
+
+test.write("b.in", """\
+#include "b.h"
+""")
+
+test.write("a.h", """\
+char *A_FILE = "b.in";
+""")
+
+test.write("b.h", """\
+char *B_FILE = "b.in";
+""")
+
+test.run(arguments = '-j4 .',
+         stderr=TestSCons.noisy_ar,
+         match=TestSCons.match_re_dotall)
+
+# If the dependencies weren't re-scanned properly, the .h files won't
+# show up in the previous run's dependency lists, and the .o files and
+# library will get rebuilt here.
+test.up_to_date(arguments = '.')
+
+test.pass_test()