def run(self, project, name, prop_set, sources):
if not name:
# Unless this generator is invoked as the top-most generator for a
# main target, fail. This allows using 'H' type as input type for
# this generator, while preventing Boost.Build to try this generator
# when not explicitly asked for.
#
# One bad example is msvc, where pch generator produces both PCH
# target and OBJ target, so if there's any header generated (like by
# bison, or by msidl), we'd try to use pch generator to get OBJ from
# that H, which is completely wrong. By restricting this generator
# only to pch main target, such problem is solved.
pass
else:
r = self.run_pch(project, name, prop_set.add_raw("<define>BOOST_BUILD_PCH_ENABLED"), sources)
return generators.add_usage_requirements(r, ["<define>BOOST_BUILD_PCH_ENABLED"])
def run(self, project, name, prop_set, sources):
if not name:
# Unless this generator is invoked as the top-most generator for a
# main target, fail. This allows using 'H' type as input type for
# this generator, while preventing Boost.Build to try this generator
# when not explicitly asked for.
#
# One bad example is msvc, where pch generator produces both PCH
# target and OBJ target, so if there's any header generated (like by
# bison, or by msidl), we'd try to use pch generator to get OBJ from
# that H, which is completely wrong. By restricting this generator
# only to pch main target, such problem is solved.
pass
else:
r = self.run_pch(
project, name,
prop_set.add_raw('<define>BOOST_BUILD_PCH_ENABLED'), sources)
return generators.add_usage_requirements(
r, ['<define>BOOST_BUILD_PCH_ENABLED'])