UseSWIG: add support of target property INCLUDE_DIRECTORIES consumption

Fixes: #18003

2 files changed, 54 insertions, 0 deletions

diff --git a/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/CMakeLists.txt b/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/CMakeLists.txt
new file mode 100644
index 0000000..3e266c3
--- /dev/null
+++ b/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/CMakeLists.txt
@@ -0,0 +1,45 @@
+cmake_minimum_required(VERSION 3.1)
+
+project(TestUseTargetINCLUDE_DIRECTORIES CXX)
+
+include(CTest)
+
+find_package(SWIG REQUIRED)
+include(${SWIG_USE_FILE})
+
+find_package(Python3 REQUIRED COMPONENTS Interpreter Development)
+
+unset(CMAKE_SWIG_FLAGS)
+
+set_property(SOURCE "example.i" PROPERTY CPLUSPLUS ON)
+set_property(SOURCE "example.i" PROPERTY COMPILE_OPTIONS -includeall)
+
+swig_add_library(example1
+                 LANGUAGE python
+                 OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/example1"
+                 SOURCES example.i ../example.cxx)
+set_target_properties (example1 PROPERTIES
+  INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/.."
+  SWIG_USE_TARGET_INCLUDE_DIRECTORIES TRUE
+  OUTPUT_NAME example1
+  LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example1"
+  ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example1"
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example1")
+target_link_libraries(example1 PRIVATE Python3::Python)
+
+
+# Check that source property override target property
+set_property(SOURCE "example.i" PROPERTY USE_TARGET_INCLUDE_DIRECTORIES TRUE)
+
+swig_add_library(example2
+                 LANGUAGE python
+                 OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/example2"
+                 SOURCES example.i ../example.cxx)
+set_target_properties (example2 PROPERTIES
+  INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/.."
+  SWIG_USE_TARGET_INCLUDE_DIRECTORIES FALSE
+  OUTPUT_NAME example2
+  LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example2"
+  ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example2"
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/example2")
+target_link_libraries(example2 PRIVATE Python3::Python)
diff --git a/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/example.i b/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/example.i
new file mode 100644
index 0000000..fbdf724
--- /dev/null
+++ b/Tests/UseSWIG/UseTargetINCLUDE_DIRECTORIES/example.i
@@ -0,0 +1,9 @@
+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+/* Let's just grab the original header file here */
+%include "example.h"