vcpkg/ports/libigl/dependencies.patch

diff --git a/cmake/igl/modules/opengl.cmake b/cmake/igl/modules/opengl.cmake
index 4580c037..b09d762f 100644
--- a/cmake/igl/modules/opengl.cmake
+++ b/cmake/igl/modules/opengl.cmake
@@ -14,11 +14,10 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/*.cpp")
 igl_target_sources(igl_opengl ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(glad)
 find_package(OpenGL REQUIRED OPTIONAL_COMPONENTS OpenGL)
 target_link_libraries(igl_opengl ${IGL_SCOPE}
     igl::core
-    glad::glad
+    glad
     # Link against OpenGL::OpenGL if available, or fallback to OpenGL::GL
     $<IF:$<TARGET_EXISTS:OpenGL::OpenGL>,OpenGL::OpenGL,OpenGL::GL>
 )
diff --git a/cmake/igl/modules/core.cmake b/cmake/igl/modules/core.cmake
index 2aefcd64..137d30bc 100644
--- a/cmake/igl/modules/core.cmake
+++ b/cmake/igl/modules/core.cmake
@@ -20,7 +20,7 @@ igl_target_sources(igl_core ${INC_FILES} ${SRC_FILES})
 igl_install(igl_core ${INC_FILES} ${SRC_FILES})
 
 # 5. Dependencies
-include(eigen)
+find_package(Eigen3 CONFIG REQUIRED)
 find_package(Threads REQUIRED)
 target_link_libraries(igl_core ${IGL_SCOPE}
     Eigen3::Eigen
diff --git a/cmake/igl/modules/embree.cmake b/cmake/igl/modules/embree.cmake
index 6f223192..21ce00e3 100644
--- a/cmake/igl/modules/embree.cmake
+++ b/cmake/igl/modules/embree.cmake
@@ -14,10 +14,10 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/embree/*.cpp")
 igl_target_sources(igl_embree ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(embree)
+find_package(embree 3 CONFIG REQUIRED)
 target_link_libraries(igl_embree ${IGL_SCOPE}
     igl::core
-    embree::embree
+    embree
 )
 
 # 5. Unit tests
diff --git a/cmake/igl/modules/glfw.cmake b/cmake/igl/modules/glfw.cmake
index 151338e4..77c48e58 100644
--- a/cmake/igl/modules/glfw.cmake
+++ b/cmake/igl/modules/glfw.cmake
@@ -14,10 +14,10 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/glfw/*.cpp")
 igl_target_sources(igl_glfw ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(glfw)
+find_package(glfw3 CONFIG REQUIRED)
 igl_include(opengl)
 target_link_libraries(igl_glfw ${IGL_SCOPE}
     igl::core
     igl::opengl
-    glfw::glfw
+    glfw
 )
diff --git a/cmake/igl/modules/xml.cmake b/cmake/igl/modules/xml.cmake
index 3763b771..31ab979b 100644
--- a/cmake/igl/modules/xml.cmake
+++ b/cmake/igl/modules/xml.cmake
@@ -14,7 +14,7 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/xml/*.cpp")
 igl_target_sources(igl_xml ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(tinyxml2)
+find_package(tinyxml2 CONFIG REQUIRED)
 target_link_libraries(igl_xml ${IGL_SCOPE}
     igl::core
     tinyxml2::tinyxml2

diff --git a/cmake/igl/modules/imgui.cmake b/cmake/igl/modules/imgui.cmake
index d7ffb9d4..aac353aa 100644
--- a/cmake/igl/modules/imgui.cmake
+++ b/cmake/igl/modules/imgui.cmake
@@ -14,8 +14,8 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/glfw/imgui/*.cpp")
 igl_target_sources(igl_imgui ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(imgui)
-include(imguizmo)
+find_package(imgui CONFIG REQUIRED)
+find_package(imguizmo CONFIG REQUIRED)
 include(libigl_imgui_fonts)
 igl_include(glfw)
 target_link_libraries(igl_imgui ${IGL_SCOPE}
diff --git a/cmake/igl/modules/copyleft/cgal.cmake b/cmake/igl/modules/copyleft/cgal.cmake
index f6abe8c3..125dd701 100644
--- a/cmake/igl/modules/copyleft/cgal.cmake
+++ b/cmake/igl/modules/copyleft/cgal.cmake
@@ -14,13 +14,18 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/copyleft/cgal/*.cpp")
 igl_target_sources(igl_copyleft_cgal ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(cgal)
+find_package(cgal CONFIG REQUIRED)
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(gmp REQUIRED IMPORTED_TARGET gmp)
+target_link_libraries(igl_copyleft_cgal INTERFACE PkgConfig::gmp)
+pkg_check_modules(mpfr REQUIRED IMPORTED_TARGET mpfr)
+target_link_libraries(igl_copyleft_cgal INTERFACE PkgConfig::mpfr)
 igl_include(copyleft core)
 target_link_libraries(igl_copyleft_cgal ${IGL_SCOPE}
     igl::core
     igl_copyleft::core
-    CGAL::CGAL
-    CGAL::CGAL_Core
+    CGAL
+    CGAL_Core
 )
 
 # 5. Unit tests