From b32d5ef803e4a1cf4363a092524ea2894fe3e104 Mon Sep 17 00:00:00 2001
From: Max Lyon <lyon@cs.rwth-aachen.de>
Date: Sun, 14 Feb 2021 18:41:06 +0100
Subject: [PATCH] add cmake variable that controls if headers should be
 installed or not

---
 src/OpenMesh/Core/CMakeLists.txt  | 8 +++++++-
 src/OpenMesh/Tools/CMakeLists.txt | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/OpenMesh/Core/CMakeLists.txt b/src/OpenMesh/Core/CMakeLists.txt
index 59e3fecf..c00a1d65 100644
--- a/src/OpenMesh/Core/CMakeLists.txt
+++ b/src/OpenMesh/Core/CMakeLists.txt
@@ -101,7 +101,13 @@ endif()
 
 
 # Only install if the project name matches OpenMesh.
-if (NOT APPLE AND ${CMAKE_PROJECT_NAME} MATCHES "OpenMesh")
+if (${CMAKE_PROJECT_NAME} MATCHES "OpenMesh")
+  set (OPENMESH_NO_INSTALL_HEADERS FALSE CACHE BOOL "Should OpenMesh skip installing headers?")
+else()
+  set (OPENMESH_NO_INSTALL_HEADERS TRUE CACHE BOOL "Should OpenMesh skip installing headers?")
+endif()
+
+if (NOT APPLE AND NOT ${OPENMESH_NO_INSTALL_HEADERS})
 
 # Install Header Files)
 install(DIRECTORY . 
diff --git a/src/OpenMesh/Tools/CMakeLists.txt b/src/OpenMesh/Tools/CMakeLists.txt
index 8265af19..0170e2b8 100644
--- a/src/OpenMesh/Tools/CMakeLists.txt
+++ b/src/OpenMesh/Tools/CMakeLists.txt
@@ -97,7 +97,13 @@ endif()
 
 
 # Only install if the project name matches OpenMesh.
-if (NOT APPLE AND ${CMAKE_PROJECT_NAME} MATCHES "OpenMesh")
+if (${CMAKE_PROJECT_NAME} MATCHES "OpenMesh")
+  set (OPENMESH_NO_INSTALL_HEADERS FALSE CACHE BOOL "Should OpenMesh skip installing headers?")
+else()
+  set (OPENMESH_NO_INSTALL_HEADERS TRUE CACHE BOOL "Should OpenMesh skip installing headers?")
+endif()
+
+if (NOT APPLE AND NOT ${OPENMESH_NO_INSTALL_HEADERS})
 
 # Install Header Files
 install(DIRECTORY .