Test link multiplicity export/import

We test that LINK_INTERFACE_MULTIPLICITY propagates through export() and
install(EXPORT) into dependent projects.  A simple cycle of two archives
that need to be scanned three times ensures that the importing project
uses the multiplicity correctly.

7 files changed, 22 insertions, 0 deletions

diff --git a/Tests/ExportImport/Export/CMakeLists.txt b/Tests/ExportImport/Export/CMakeLists.txt
index 0dd2550..235a1d2 100644
--- a/Tests/ExportImport/Export/CMakeLists.txt
+++ b/Tests/ExportImport/Export/CMakeLists.txt
@@ -73,12 +73,22 @@ target_link_libraries(testLib4
 add_executable(testExe3 testExe3.c)
 set_property(TARGET testExe3 PROPERTY MACOSX_BUNDLE 1)
 
+# Test cyclic dependencies.
+add_library(testLibCycleA STATIC
+  testLibCycleA1.c testLibCycleA2.c testLibCycleA3.c)
+add_library(testLibCycleB STATIC
+  testLibCycleB1.c testLibCycleB2.c testLibCycleB3.c)
+target_link_libraries(testLibCycleA testLibCycleB)
+target_link_libraries(testLibCycleB testLibCycleA)
+set_property(TARGET testLibCycleA PROPERTY LINK_INTERFACE_MULTIPLICITY 3)
+
 # Install and export from install tree.
 install(
   TARGETS
   testExe1 testLib1 testLib2 testExe2 testLib3 testLib4 testExe3
   testExe2lib testLib4lib testLib4libdbg testLib4libopt
   testLib6
+  testLibCycleA testLibCycleB
   EXPORT exp
   RUNTIME DESTINATION bin
   LIBRARY DESTINATION lib NAMELINK_SKIP
@@ -116,6 +126,7 @@ export(TARGETS testExe1 testLib1 testLib2 testLib3
   )
 export(TARGETS testExe2 testLib4 testLib5 testLib6 testExe3 testExe2lib
   testLib4lib testLib4libdbg testLib4libopt
+  testLibCycleA testLibCycleB
   NAMESPACE bld_
   APPEND FILE ExportBuildTree.cmake
   )
diff --git a/Tests/ExportImport/Export/testLibCycleA1.c b/Tests/ExportImport/Export/testLibCycleA1.c
new file mode 100644
index 0000000..3db9e53
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleA1.c
@@ -0,0 +1,2 @@
+extern int testLibCycleB1(void);
+int testLibCycleA1(void) { return testLibCycleB1(); }
diff --git a/Tests/ExportImport/Export/testLibCycleA2.c b/Tests/ExportImport/Export/testLibCycleA2.c
new file mode 100644
index 0000000..29ad46d
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleA2.c
@@ -0,0 +1,2 @@
+extern int testLibCycleB2(void);
+int testLibCycleA2(void) { return testLibCycleB2(); }
diff --git a/Tests/ExportImport/Export/testLibCycleA3.c b/Tests/ExportImport/Export/testLibCycleA3.c
new file mode 100644
index 0000000..565447b
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleA3.c
@@ -0,0 +1,2 @@
+extern int testLibCycleB3(void);
+int testLibCycleA3(void) { return testLibCycleB3(); }
diff --git a/Tests/ExportImport/Export/testLibCycleB1.c b/Tests/ExportImport/Export/testLibCycleB1.c
new file mode 100644
index 0000000..36cb7b0
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleB1.c
@@ -0,0 +1,2 @@
+extern int testLibCycleA2(void);
+int testLibCycleB1(void) { return testLibCycleA2(); }
diff --git a/Tests/ExportImport/Export/testLibCycleB2.c b/Tests/ExportImport/Export/testLibCycleB2.c
new file mode 100644
index 0000000..ff12093
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleB2.c
@@ -0,0 +1,2 @@
+extern int testLibCycleA3(void);
+int testLibCycleB2(void) { return testLibCycleA3(); }
diff --git a/Tests/ExportImport/Export/testLibCycleB3.c b/Tests/ExportImport/Export/testLibCycleB3.c
new file mode 100644
index 0000000..ca8d470
--- /dev/null
+++ b/Tests/ExportImport/Export/testLibCycleB3.c
@@ -0,0 +1 @@
+int testLibCycleB3(void) { return 0; }