commit 0e1cb50299d628f55d370ca0c4c4652367ee9005
Author: Luís Murta <luis@murta.dev>
Date:   Tue Aug 5 23:30:57 2025 +0100

    CMake transitive LINK_LIBRARIES

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.cache
+build
diff --git a/CMakeLists.txt b/CMakeLists.txt
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--- /dev/null
+++ b/CMakeLists.txt
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+cmake_minimum_required(VERSION 3.12...4.1)
+project(link-libraries)
+
+# Added in 4.1, enables transitive link libraries on LINK_LIBRARIES property
+# https://cmake.org/cmake/help/v4.1/policy/CMP0189.html
+# https://gitlab.kitware.com/cmake/cmake/-/issues/26709
+# https://gitlab.kitware.com/cmake/cmake/-/merge_requests/10391
+cmake_policy(SET CMP0189 NEW)
+
+add_library(shared1 SHARED dummy.cpp)
+add_library(shared2 SHARED dummy.cpp)
+add_library(shared3 SHARED dummy.cpp)
+add_library(interface1 INTERFACE)
+add_library(interface2 INTERFACE)
+add_library(interface3 INTERFACE)
+add_library(interface4 INTERFACE)
+add_library(static1 STATIC dummy.cpp)
+add_library(static2 STATIC dummy.cpp)
+
+add_library(lib1 STATIC dummy.cpp)
+target_link_libraries(
+  lib1
+  PUBLIC shared1 interface1 static1
+  PRIVATE shared2 interface2 static2
+  INTERFACE interface3)
+
+add_library(lib2 SHARED dummy.cpp)
+target_link_libraries(lib2 shared3 interface3)
+
+add_executable(exe1 dummy.cpp)
+target_link_libraries(exe1 PRIVATE lib1 lib2 interface4)
+
+add_executable(exe2 dummy.cpp)
+target_link_libraries(exe2 lib1 lib2 interface4)
+
+get_target_property(lib1_LINK_LIBRARIES lib1 LINK_LIBRARIES)
+get_target_property(lib1_INTERFACE_LINK_LIBRARIES lib1 INTERFACE_LINK_LIBRARIES)
+message(STATUS "lib1_LINK_LIBRARIES: ${lib1_LINK_LIBRARIES}")
+message(STATUS "lib1_INTERFACE_LINK: ${lib1_INTERFACE_LINK_LIBRARIES}")
+
+get_target_property(exe1_LINK_LIBRARIES exe1 LINK_LIBRARIES)
+get_target_property(exe1_INTERFACE_LINK_LIBRARIES exe1 INTERFACE_LINK_LIBRARIES)
+message(STATUS "exe1_LINK_LIBRARIES: ${exe1_LINK_LIBRARIES}")
+message(STATUS "exe1_INTERFACE_LINK: ${exe1_INTERFACE_LINK_LIBRARIES}")
+
+get_target_property(exe2_LINK_LIBRARIES exe2 LINK_LIBRARIES)
+get_target_property(exe2_INTERFACE_LINK_LIBRARIES exe1 INTERFACE_LINK_LIBRARIES)
+message(STATUS "exe2_LINK_LIBRARIES: ${exe2_LINK_LIBRARIES}")
+message(STATUS "exe2_INTERFACE_LINK: ${exe2_INTERFACE_LINK_LIBRARIES}")
+
+# https://stackoverflow.com/questions/51353110/how-do-i-output-the-result-of-a-generator-expression-in-cmake
+file(
+  GENERATE
+  OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/lib1_link_libraries.txt
+  CONTENT "$<TARGET_PROPERTY:lib1,LINK_LIBRARIES>")
+file(
+  GENERATE
+  OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/exe1_link_libraries.txt
+  CONTENT "$<TARGET_PROPERTY:exe1,LINK_LIBRARIES>")
+file(
+  GENERATE
+  OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/exe2_link_libraries.txt
+  CONTENT "$<TARGET_PROPERTY:exe2,LINK_LIBRARIES>")
+
+# set_property(GLOBAL PROPERTY GLOBAL_DEPENDS_DEBUG_MODE 1)
diff --git a/README.md b/README.md
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+++ b/README.md
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+# CMake transitive LINK_LIBRARIES
+
+Small test to check if the target property LINK_LIBRARIES was transitive. It seems it was only added
+as the result of the generator expression $<TARGET_PROPERTY:tgt,LINK_LIBRARIES> in CMake 4.1.
diff --git a/dummy.cpp b/dummy.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/exe1_link_libraries.txt b/exe1_link_libraries.txt
new file mode 100644
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--- /dev/null
+++ b/exe1_link_libraries.txt
@@ -0,0 +1 @@
+lib1;lib2;interface4;shared1;interface1;static1;shared2;interface2;static2;interface3;shared3;interface3
\ No newline at end of file
diff --git a/exe2_link_libraries.txt b/exe2_link_libraries.txt
new file mode 100644
index 0000000..8ba879c
--- /dev/null
+++ b/exe2_link_libraries.txt
@@ -0,0 +1 @@
+lib1;lib2;interface4;shared1;interface1;static1;shared2;interface2;static2;interface3;shared3;interface3
\ No newline at end of file
diff --git a/lib1_link_libraries.txt b/lib1_link_libraries.txt
new file mode 100644
index 0000000..3f55fd9
--- /dev/null
+++ b/lib1_link_libraries.txt
@@ -0,0 +1 @@
+shared1;interface1;static1;shared2;interface2;static2
\ No newline at end of file