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-rw-r--r--libbuild2/cxx/init.cxx19
1 files changed, 11 insertions, 8 deletions
diff --git a/libbuild2/cxx/init.cxx b/libbuild2/cxx/init.cxx
index 901fd8f..a886cbc 100644
--- a/libbuild2/cxx/init.cxx
+++ b/libbuild2/cxx/init.cxx
@@ -273,18 +273,21 @@ namespace build2
{
case compiler_type::msvc:
{
- // While modules are supported in VC15.0 (19.10), there is a bug
- // in separate interface/implementation unit support which makes
- // them pretty much unusable. This has been fixed in VC15.3
- // (19.11). And VC15.5 (19.12) supports the 'export module M;'
- // syntax.
+ // While modules are supported in VC 15.0 (19.10), there is a
+ // bug in the separate interface/implementation unit support
+ // which makes them pretty much unusable. This has been fixed in
+ // 15.3 (19.11). And 15.5 (19.12) supports the `export module
+ // M;` syntax. And 16.4 (19.24) supports the global module
+ // fragment.
//
if (mj > 19 || (mj == 19 && mi >= (l ? 10 : 12)))
{
r.push_back (
- mj > 19 || mi > 11
- ? "/D__cpp_modules=201704" // p0629r0 (export module M;)
- : "/D__cpp_modules=201703"); // n4647 ( module M;)
+ mj > 19 || mi >= 24 ?
+ "/D__cpp_modules=201810" : // p1103 (merged modules)
+ mj == 19 || mi >= 12 ?
+ "/D__cpp_modules=201704" : // p0629r0 (export module M;)
+ "/D__cpp_modules=201703"); // n4647 ( module M;)
r.push_back ("/experimental:module");
modules = true;