From c664ee1b8a53d958d7cb2fccf3b04aec8ea1cce0 Mon Sep 17 00:00:00 2001
From: papush! <contact@ccolin.fr>
Date: Tue, 9 Nov 2021 22:17:14 +0100
Subject: [PATCH] add eigen dep

---
 CMakeLists.txt                |  4 +++-
 external/Eigen/CMakeLists.txt | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 external/Eigen/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd6e2c1..345b53c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ project(tp LANGUAGES C CXX)
 
 find_package(Qt5 REQUIRED COMPONENTS Core Gui Widgets)
 add_subdirectory(external/OpenMesh)
+add_subdirectory(external/Eigen)
 
 add_executable(${PROJECT_NAME})
 target_sources(${PROJECT_NAME} PRIVATE
@@ -24,7 +25,8 @@ target_sources(${PROJECT_NAME} PRIVATE
   src/util.h)
 target_link_libraries(${PROJECT_NAME} PRIVATE
   Qt5::Core Qt5::Gui Qt5::Widgets
-  OpenMeshCore)
+  OpenMeshCore
+  eigen)
 target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_11)
 set_target_properties(${PROJECT_NAME} PROPERTIES
   AUTOMOC ON
diff --git a/external/Eigen/CMakeLists.txt b/external/Eigen/CMakeLists.txt
new file mode 100644
index 0000000..38708b2
--- /dev/null
+++ b/external/Eigen/CMakeLists.txt
@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.15)
+
+include(FetchContent)
+
+FetchContent_Declare(
+  Eigen
+  URL https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.gz
+  URL_HASH MD5=4c527a9171d71a72a9d4186e65bea559)
+
+FetchContent_MakeAvailable(Eigen)