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# file : buildfile
# copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
# license : MIT; see accompanying LICENSE file
./: exe{driver}
lib{bar}: {hxx cxx}{bar}
# The order of prerequisites is important. When compile with VC using modules
# the module interface file (foo.ifc) should be produced before module consumer
# (driver.cxx) is compiled. The same reasoning is applied for bar.ifc.
#
if ($cxx.id == "msvc")
exe{driver}: lib{bar} {hxx cxx}{foo} cxx{driver}
else
exe{driver}: {hxx cxx}{foo} cxx{driver} lib{bar}
cxx.poptions =+ -I$src_root
if ($use_modules == true)
{
cxx.poptions += -DMODTEST_USE_MODULES
if ($cxx.id == "clang")
{
# -Wno-ambiguous-macro - required to suppress "ambiguous expansion of macro
# MODTEST_MACRO" warning (do not mix up with macro
# redefinition warning). The warning seems to follow
# from a module macro leakage effect.
#
cxx.coptions += -fmodules -Wno-ambiguous-macro \
-fmodules-cache-path=$out_root/modcache
# Frankly not 100% sure this is required.
#
obj{foo}: cxx.coptions += -fmodule-name=foo
obj{bar}: cxx.coptions += -fmodule-name=bar
}
if ($cxx.id == "clang-apple")
{
# While compiler (8.0.0) recognizes -fmodules* options they just get
# ignored as no import module semantics is assigned to #include directive.
#
# @@ Can there be something wrong with module.modulemap file?
#
cxx.coptions += -fmodules -fmodules-cache-path=$out_root/modcache
obj{foo}: cxx.coptions += -fmodule-name=foo
obj{bar}: cxx.coptions += -fmodule-name=bar
}
elif ($cxx.id == "msvc")
{
# /module:interface - produce ifc-file if there is interface definition
# in a file.
# /module:search - directory to search for ifc-files. In its absense
# need to use /module:reference <ifc-file> option when
# compile consumer of the module represented with the
# corresponding ifc-file.
#
cxx.coptions += /experimental:module /module:interface \
/module:search $out_base
}
}
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