From e78ed6e7f3d64f06761446d0a8dcb356a0373bff Mon Sep 17 00:00:00 2001
From: Hans Johnson <hans.j.johnson@gmail.com>
Date: Sun, 17 Nov 2019 15:14:25 -0600
Subject: COMP: Simplify install commands for Eigen

Confirm that install directory is identical
before and after this simplifying patch.

```bash
hg clone <<Eigen>>
mkdir eigen-bld
cd eigen-bld
cmake ../Eigen -DCMAKE_INSTALL_PREFIX:PATH=/tmp/bef
make install
find /tmp/pre_eigen_modernize >/tmp/bef

#  Apply this patch

cmake ../Eigen -DCMAKE_INSTALL_PREFIX:PATH=/tmp/aft
make install
find /tmp/post_eigen_modernize |sed 's/post_e/pre_e/g' >/tmp/aft
diff /tmp/bef /tmp/aft
```
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c178ce56..619bd18f8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -456,7 +456,7 @@ if(EIGEN_BUILD_PKGCONFIG)
         )
 endif()
 
-add_subdirectory(Eigen)
+install(DIRECTORY Eigen DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel)
 
 add_subdirectory(doc EXCLUDE_FROM_ALL)
 
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