Add support for `import std` in Clang 17 or later with libc++

1 files changed, 11 insertions, 0 deletions

diff --git a/libbuild2/buildfile b/libbuild2/buildfile
index 6d7c597..5ef0006 100644
--- a/libbuild2/buildfile
+++ b/libbuild2/buildfile
@@ -222,6 +222,17 @@ if ($install.root != [null])
       $directory($install.resolve($install.buildfile)), '\\', '\\\\')\"
   #\
 
+  # Data directory or src_root if not installed.
+  #
+  # Note: normalized in both cases.
+  #
+  {obja objs}{utility-installed}: cxx.poptions += \
+    -DBUILD2_INSTALL_DATA=\"$regex.replace(\
+      $install.resolve($install.data), '\\', '\\\\')\"
+
+  {obja objs}{utility-uninstalled}: cxx.poptions += \
+    -DBUILD2_INSTALL_DATA=\"$regex.replace(\
+      $src_root, '\\', '\\\\')\"
 }
 
 if ($cxx.target.class != 'windows')