Make targets depend on the link interface of their dependees.

4 files changed, 25 insertions, 1 deletions

diff --git a/Tests/CMakeCommands/target_link_libraries/CMakeLists.txt b/Tests/CMakeCommands/target_link_libraries/CMakeLists.txt
index 1faa888..60b36fc 100644
--- a/Tests/CMakeCommands/target_link_libraries/CMakeLists.txt
+++ b/Tests/CMakeCommands/target_link_libraries/CMakeLists.txt
@@ -56,3 +56,10 @@ assert_property(targetA LINK_INTERFACE_LIBRARIES "")
 target_link_libraries(targetA depB depC)
 
 assert_property(targetA LINK_INTERFACE_LIBRARIES "")
+
+# Exclude depIfaceOnly from ALL so that it will only be built if something
+# depends on it. As it is in the link interface of depB, targetA
+# will depend on it. That dependency is what is being tested here.
+add_library(depIfaceOnly SHARED EXCLUDE_FROM_ALL depIfaceOnly.cpp)
+generate_export_header(depIfaceOnly)
+set_property(TARGET depB APPEND PROPERTY LINK_INTERFACE_LIBRARIES depIfaceOnly)
diff --git a/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.cpp b/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.cpp
new file mode 100644
index 0000000..3b90af0
--- /dev/null
+++ b/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.cpp
@@ -0,0 +1,7 @@
+
+#include "depIfaceOnly.h"
+
+int DepIfaceOnly::foo()
+{
+  return 0;
+}
diff --git a/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.h b/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.h
new file mode 100644
index 0000000..dddf6a5
--- /dev/null
+++ b/Tests/CMakeCommands/target_link_libraries/depIfaceOnly.h
@@ -0,0 +1,7 @@
+
+#include "depifaceonly_export.h"
+
+struct DEPIFACEONLY_EXPORT DepIfaceOnly
+{
+  int foo();
+};
diff --git a/Tests/CMakeCommands/target_link_libraries/targetA.cpp b/Tests/CMakeCommands/target_link_libraries/targetA.cpp
index 3c6472e..6ff65b1 100644
--- a/Tests/CMakeCommands/target_link_libraries/targetA.cpp
+++ b/Tests/CMakeCommands/target_link_libraries/targetA.cpp
@@ -1,6 +1,7 @@
 
 #include "depB.h"
 #include "depC.h"
+#include "depIfaceOnly.h"
 
 int main(int argc, char **argv)
 {
@@ -8,5 +9,7 @@ int main(int argc, char **argv)
   DepB b;
   DepC c;
 
-  return a.foo() + b.foo() + c.foo();
+  DepIfaceOnly iface_only;
+
+  return a.foo() + b.foo() + c.foo() + iface_only.foo();
 }