From 71a36147a66868757a976b89cea2a6bc1a33df21 Mon Sep 17 00:00:00 2001
From: Andrej730 <azhilenkov@gmail.com>
Date: Thu, 11 Dec 2025 16:00:48 +0500
Subject: [PATCH] FindCGAL - another fix for 6591a6981

---
 cmake/CMakeLists.txt               |  2 +-
 cmake/FindCGAL.cmake               | 10 +++++++---
 src/ifcgeom/kernels/CMakeLists.txt |  4 ++--
 src/svgfill/CMakeLists.txt         |  2 +-
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index e218fcaab9..a9acf473ec 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -199,7 +199,7 @@ endforeach()
 
 if(WITH_CGAL)
     find_package(CGAL REQUIRED)
-    set(CGAL_LIBRARIES CGAL::CGAL)
+    set(CGAL_LIBRARIES CGAL::CGAL_INTERFACE)
     list(APPEND GEOMETRY_KERNELS cgal)
 endif()
 
diff --git a/cmake/FindCGAL.cmake b/cmake/FindCGAL.cmake
index 089a1b112f..772c315e9c 100644
--- a/cmake/FindCGAL.cmake
+++ b/cmake/FindCGAL.cmake
@@ -10,10 +10,10 @@
 # Input variables could also be provided as environment variables.
 #
 # Output targets:
-# - `CGAL::CGAL`
+# - `CGAL::CGAL_INTERFACE`
 #
 
-if(TARGET CGAL::CGAL)
+if(TARGET CGAL::CGAL_INTERFACE)
     return()
 endif()
 
@@ -56,5 +56,9 @@ else()
     message(STATUS "CGAL: found config at '${CGAL_DIR}'.")
 endif()
 
-target_compile_definitions(CGAL::CGAL INTERFACE IFOPSH_WITH_CGAL)
+# Adding another `CGAL_INTERFACE` target, because we want to add compile definitions to it,
+# but in `CGALconfig.cmake` `CGAL::CGAL` is an alias, so you can't add properties to it.
+add_library(CGAL::CGAL_INTERFACE INTERFACE IMPORTED)
+target_link_libraries(CGAL::CGAL_INTERFACE INTERFACE CGAL::CGAL)
+target_compile_definitions(CGAL::CGAL_INTERFACE INTERFACE IFOPSH_WITH_CGAL)
 set(SWIG_DEFINES ${SWIG_DEFINES} -DIFOPSH_WITH_CGAL)
diff --git a/src/ifcgeom/kernels/CMakeLists.txt b/src/ifcgeom/kernels/CMakeLists.txt
index 1927a1bc68..5ccb71f149 100644
--- a/src/ifcgeom/kernels/CMakeLists.txt
+++ b/src/ifcgeom/kernels/CMakeLists.txt
@@ -15,7 +15,7 @@ foreach(kernel ${GEOMETRY_KERNELS})
 
     if(${kernel} STREQUAL "cgal")
         find_package(CGAL REQUIRED)
-        target_link_libraries(${KERNEL_TARGET} CGAL::CGAL)
+        target_link_libraries(${KERNEL_TARGET} CGAL::CGAL_INTERFACE)
         set_property(TARGET ${KERNEL_TARGET} APPEND_STRING PROPERTY COMPILE_FLAGS " -DCGAL_HAS_THREADS")
 
         set(KERNEL_TARGET_SIMPLE "${KERNEL_TARGET}_simple")
@@ -23,7 +23,7 @@ foreach(kernel ${GEOMETRY_KERNELS})
         set_target_properties(${KERNEL_TARGET_SIMPLE} PROPERTIES COMPILE_FLAGS "-DIFC_GEOM_EXPORTS -DIFOPSH_SIMPLE_KERNEL -DCGAL_HAS_THREADS")
         list(APPEND kernel_libraries ${KERNEL_TARGET_SIMPLE})
         target_link_libraries(${KERNEL_TARGET_SIMPLE} ${${KERNEL_UPPER}_LIBRARIES} Eigen3::Eigen)
-        target_link_libraries(${KERNEL_TARGET_SIMPLE} CGAL::CGAL)
+        target_link_libraries(${KERNEL_TARGET_SIMPLE} CGAL::CGAL_INTERFACE)
     elseif(${kernel} STREQUAL "opencascade")
         target_link_libraries(${KERNEL_TARGET} ${OpenCASCADE_LIBRARIES})
     endif()
diff --git a/src/svgfill/CMakeLists.txt b/src/svgfill/CMakeLists.txt
index ab557313d7..ed777d23a4 100644
--- a/src/svgfill/CMakeLists.txt
+++ b/src/svgfill/CMakeLists.txt
@@ -56,7 +56,7 @@ file(GLOB LIB_H_FILES src/*.h)
 file(GLOB LIB_CPP_FILES src/svgfill.cpp src/arrange_polygons.cpp)
 set(LIB_SRC_FILES ${LIB_H_FILES} ${LIB_CPP_FILES})
 add_library(svgfill ${LIB_SRC_FILES})
-target_link_libraries(svgfill ${Boost_LIBRARIES} ${BCRYPT_LIBRARIES} LibXml2::LibXml2 CGAL::CGAL)
+target_link_libraries(svgfill ${Boost_LIBRARIES} ${BCRYPT_LIBRARIES} LibXml2::LibXml2 CGAL::CGAL_INTERFACE)
 
 add_executable(svgfill_exe src/main.cpp)
 target_link_libraries(svgfill_exe svgfill)