Merge topic 'imported-same-name'

f35be59961 Fix transitive usage requirements through same-name imported targets
1b57f49586 genex: Simplify cmGeneratorExpressionInterpreter
bea390e9bd Fix dependency propagation through same-name imported targets
fc7e4d1ed8 cmLinkItem: Convert to a "sum type" over a string and target pointer

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2359

7 files changed, 47 insertions, 0 deletions

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 971d7ff..a22521b 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -396,6 +396,7 @@ if(BUILD_TESTING)
   ADD_TEST_MACRO(CompatibleInterface CompatibleInterface)
   ADD_TEST_MACRO(AliasTarget AliasTarget)
   ADD_TEST_MACRO(StagingPrefix StagingPrefix)
+  ADD_TEST_MACRO(ImportedSameName ImportedSameName)
   ADD_TEST_MACRO(InterfaceLibrary InterfaceLibrary)
   if (CMAKE_BUILD_TYPE MATCHES "[Dd][Ee][Bb][Uu][Gg]")
     set(ConfigSources_BUILD_OPTIONS -DCMAKE_BUILD_TYPE=Debug)
diff --git a/Tests/ImportedSameName/A/CMakeLists.txt b/Tests/ImportedSameName/A/CMakeLists.txt
new file mode 100644
index 0000000..0a31b40
--- /dev/null
+++ b/Tests/ImportedSameName/A/CMakeLists.txt
@@ -0,0 +1,8 @@
+add_library(a STATIC a.c)
+target_compile_definitions(a INTERFACE DEF_A)
+
+add_library(sameName INTERFACE IMPORTED)
+target_link_libraries(sameName INTERFACE a)
+
+add_library(ifaceA INTERFACE)
+target_link_libraries(ifaceA INTERFACE sameName)
diff --git a/Tests/ImportedSameName/A/a.c b/Tests/ImportedSameName/A/a.c
new file mode 100644
index 0000000..4ef3698
--- /dev/null
+++ b/Tests/ImportedSameName/A/a.c
@@ -0,0 +1,3 @@
+void a(void)
+{
+}
diff --git a/Tests/ImportedSameName/B/CMakeLists.txt b/Tests/ImportedSameName/B/CMakeLists.txt
new file mode 100644
index 0000000..d930326
--- /dev/null
+++ b/Tests/ImportedSameName/B/CMakeLists.txt
@@ -0,0 +1,8 @@
+add_library(b STATIC b.c)
+target_compile_definitions(b INTERFACE DEF_B)
+
+add_library(sameName INTERFACE IMPORTED)
+target_link_libraries(sameName INTERFACE b)
+
+add_library(ifaceB INTERFACE)
+target_link_libraries(ifaceB INTERFACE sameName)
diff --git a/Tests/ImportedSameName/B/b.c b/Tests/ImportedSameName/B/b.c
new file mode 100644
index 0000000..c7c7df4
--- /dev/null
+++ b/Tests/ImportedSameName/B/b.c
@@ -0,0 +1,3 @@
+void b(void)
+{
+}
diff --git a/Tests/ImportedSameName/CMakeLists.txt b/Tests/ImportedSameName/CMakeLists.txt
new file mode 100644
index 0000000..4292c12
--- /dev/null
+++ b/Tests/ImportedSameName/CMakeLists.txt
@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.12)
+project(ImportedSameName C)
+
+add_subdirectory(A)
+add_subdirectory(B)
+
+add_executable(ImportedSameName main.c)
+target_link_libraries(ImportedSameName PRIVATE ifaceA ifaceB)
diff --git a/Tests/ImportedSameName/main.c b/Tests/ImportedSameName/main.c
new file mode 100644
index 0000000..a0cb27f
--- /dev/null
+++ b/Tests/ImportedSameName/main.c
@@ -0,0 +1,16 @@
+#ifndef DEF_A
+#  error "DEF_A not defined"
+#endif
+#ifndef DEF_B
+#  error "DEF_B not defined"
+#endif
+
+extern void a(void);
+extern void b(void);
+
+int main(void)
+{
+  a();
+  b();
+  return 0;
+}