From 36ba9ec8a3ed38554f06ce9a3e3aac2eeef06772 Mon Sep 17 00:00:00 2001
From: Matthew Parno <parnomd@gmail.com>
Date: Tue, 16 Aug 2022 13:54:32 -0400
Subject: [PATCH] Allowed for separation of python installation path to support
 conda package.

---
 CMakeLists.txt                 |  4 ++++
 bindings/python/CMakeLists.txt |  4 ++--
 cmake/SetInstallPaths.cmake    | 10 ++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 cmake/SetInstallPaths.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 71709872..50e5f648 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,10 @@ option(MPART_MATLAB "Build matlab bindings with pybind11" ON)
 option(MPART_JULIA "Build julia bindings with CxxWrap.jl" ON)
 option(MPART_FETCH_DEPS "If CMake should be allowed to fetch and build external dependencies that weren't found." ON)
 
+##############################################################
+# Installation path configuration 
+Include(SetInstallPaths)
+
 ##############################################################
 # Compiler configuration
 
diff --git a/bindings/python/CMakeLists.txt b/bindings/python/CMakeLists.txt
index e2a7f630..2b9f4b5f 100644
--- a/bindings/python/CMakeLists.txt
+++ b/bindings/python/CMakeLists.txt
@@ -17,5 +17,5 @@ pybind11_add_module(pympart SHARED NO_EXTRAS ${PYTHON_BINDING_SOURCES})
 target_link_libraries(pympart PRIVATE mpart Kokkos::kokkos Eigen3::Eigen)
 
 # Add an installation target for the python bindings
-install(TARGETS pympart DESTINATION python/mpart)
-install(DIRECTORY package/ DESTINATION python/mpart)
\ No newline at end of file
+install(TARGETS pympart DESTINATION "${PYTHON_INSTALL_PREFIX}/mpart")
+install(DIRECTORY package/ DESTINATION "${PYTHON_INSTALL_PREFIX}/mpart")
\ No newline at end of file
diff --git a/cmake/SetInstallPaths.cmake b/cmake/SetInstallPaths.cmake
new file mode 100644
index 00000000..1e5d6b2e
--- /dev/null
+++ b/cmake/SetInstallPaths.cmake
@@ -0,0 +1,10 @@
+
+
+if(PYTHON_INSTALL_PREFIX)
+  message(STATUS "PYTHON_INSTALL_PREFIX was set by user to be ${PYTHON_INSTALL_PREFIX}.")
+else()
+  message(STATUS "PYTHON_INSTALL_PREFIX was not set by user, defaulting to CMAKE_INSTALL_PREFIX/python.")
+  set(PYTHON_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/python)
+endif()
+
+message(STATUS "Python packages will be installed to ${PYTHON_INSTALL_PREFIX}.")