From df9804d20a75d76b8e0099252f2d4751767dadda Mon Sep 17 00:00:00 2001
From: Chuck Walbourn <walbourn@users.noreply.github.com>
Date: Fri, 16 Jun 2023 11:51:57 -0700
Subject: [PATCH] CMake targets fixes for optional vs. required packages (#121)

---
 CMakeLists.txt                | 8 ++++----
 build/UVAtlas-config.cmake.in | 7 +++++--
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d20ff4ca..d29f444a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -171,7 +171,7 @@ if(ENABLE_USE_EIGEN)
     message(STATUS "Using Eigen3 & Spectra for CSymmetricMatrix::GetEigen.")
     find_package(Eigen3 REQUIRED)
     find_package(spectra REQUIRED)
-    target_link_libraries(${PROJECT_NAME} PRIVATE Eigen3::Eigen Spectra::Spectra)
+    target_link_libraries(${PROJECT_NAME} PUBLIC Eigen3::Eigen Spectra::Spectra)
     target_compile_definitions(${PROJECT_NAME} PRIVATE UVATLAS_USE_EIGEN)
 endif()
 
@@ -254,7 +254,7 @@ if(BUILD_TOOLS AND WIN32)
         UVAtlasTool/Mesh.h
         UVAtlasTool/MeshOBJ.cpp
         UVAtlasTool/SDKMesh.h)
-    target_link_libraries(uvatlastool
+    target_link_libraries(uvatlastool PRIVATE
         ${PROJECT_NAME}
         ole32.lib version.lib
         Microsoft::DirectXMesh
@@ -263,11 +263,11 @@ if(BUILD_TOOLS AND WIN32)
     source_group(uvatlastool REGULAR_EXPRESSION UVAtlasTool/*.*)
 
     if(UVATLAS_USE_OPENMP)
-      target_link_libraries(uvatlastool OpenMP::OpenMP_CXX)
+      target_link_libraries(uvatlastool PRIVATE OpenMP::OpenMP_CXX)
     endif()
 
     if(directxmath_FOUND)
-      target_link_libraries(uvatlastool Microsoft::DirectXMath)
+      target_link_libraries(uvatlastool PRIVATE Microsoft::DirectXMath)
     endif()
 endif()
 
diff --git a/build/UVAtlas-config.cmake.in b/build/UVAtlas-config.cmake.in
index a68ee640..a24b7461 100644
--- a/build/UVAtlas-config.cmake.in
+++ b/build/UVAtlas-config.cmake.in
@@ -15,8 +15,11 @@ if (ENABLE_USE_EIGEN)
 endif()
 
 if(MINGW OR (NOT WIN32))
-    find_dependency(directx-headers CONFIG)
-    find_dependency(directxmath CONFIG)
+    find_dependency(directx-headers)
+    find_dependency(directxmath)
+else()
+    find_package(directx-headers CONFIG QUIET)
+    find_package(directxmath CONFIG QUIET)
 endif()
 
 check_required_components("@PROJECT_NAME@")