Add $<LINK_LANGUAGE> generator expression

They can't be used when evaluating link libraries, but they can be
used for include directories and compile definitions. Later they can
be used for compile options.

1 files changed, 7 insertions, 0 deletions

diff --git a/Tests/IncludeDirectories/TargetIncludeDirectories/main.c b/Tests/IncludeDirectories/TargetIncludeDirectories/main.c
new file mode 100644
index 0000000..a597daa
--- /dev/null
+++ b/Tests/IncludeDirectories/TargetIncludeDirectories/main.c
@@ -0,0 +1,7 @@
+
+#include "common.h"
+
+int main(void)
+{
+  return 0;
+}