From c8d9235115f5c0c3b20bdb0cf59b05761cb3d3de Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 22 Nov 2023 08:22:49 +0200
Subject: Add support for `import std` in Clang 17 or later with libc++

---
 libbuild2/cc/buildfile | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'libbuild2/cc/buildfile')

diff --git a/libbuild2/cc/buildfile b/libbuild2/cc/buildfile
index e090e76..7dcd811 100644
--- a/libbuild2/cc/buildfile
+++ b/libbuild2/cc/buildfile
@@ -18,12 +18,22 @@ intf_libs = ../bin/lib{build2-bin}
 
 ./: lib{build2-cc}: libul{build2-cc}:               \
   {hxx ixx txx cxx}{** -pkgconfig-lib* -**.test...} \
-  h{msvc-setup}                                     \
-  $intf_libs $impl_libs
+  h{msvc-setup}
 
 libul{build2-cc}: cxx{pkgconfig-libpkgconf}: include = $libpkgconf
 libul{build2-cc}: cxx{pkgconfig-libpkg-config}: include = (!$libpkgconf)
 
+libul{build2-cc}: $intf_libs $impl_libs
+
+# libc++ std module interface translation unit.
+#
+# Hopefully temporary, see llvm-project GH issues #73089.
+#
+# @@ TMP: make sure sync'ed with upstream before release (keep this note).
+#
+lib{build2-cc}: file{std.cppm}
+file{std.cppm}@./: install = data/libbuild2/cc/
+
 # Unit tests.
 #
 exe{*.test}:
-- 
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