From 25624bc788a2dfc2ce1ed80dc61caeef759f5274 Mon Sep 17 00:00:00 2001
From: scivision <scivision@users.noreply.github.com>
Date: Wed, 20 Dec 2023 09:11:14 -0500
Subject: [PATCH] print MPI::MPI_Fortran target props

---
 CMakeLists.txt                 |  5 ++++-
 cmake/mpi.cmake                |  2 ++
 cmake/print_target_props.cmake | 28 ++++++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 cmake/print_target_props.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 71488f7..ba16b01 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,13 +6,16 @@ LANGUAGES C Fortran
 
 enable_testing()
 
-message(STATUS "CMake ${CMAKE_VERSION} Generator ${CMAKE_GENERATOR}")
+message(STATUS "CMake ${CMAKE_VERSION} Generator ${CMAKE_GENERATOR}  Build type ${CMAKE_BUILD_TYPE}")
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
 
 # this has checks that can be reused in other projects as well
 include(cmake/mpi.cmake)
 
+include(cmake/print_target_props.cmake)
+print_target_props(MPI::MPI_Fortran)
+
 include(cmake/compilers.cmake)
 
 add_subdirectory(test)
diff --git a/cmake/mpi.cmake b/cmake/mpi.cmake
index 586f345..496b2fa 100644
--- a/cmake/mpi.cmake
+++ b/cmake/mpi.cmake
@@ -1,7 +1,9 @@
 include(CheckSourceCompiles)
 
 set(MPI_DETERMINE_LIBRARY_VERSION true)
+
 find_package(MPI REQUIRED COMPONENTS C Fortran)
+
 message(STATUS "MPI Library Version: ${MPI_C_LIBRARY_VERSION_STRING}")
 
 # Cray FindMPI.cmake has a bug where the plain CMake variables aren't defined, only imported target is
diff --git a/cmake/print_target_props.cmake b/cmake/print_target_props.cmake
new file mode 100644
index 0000000..3b27cfa
--- /dev/null
+++ b/cmake/print_target_props.cmake
@@ -0,0 +1,28 @@
+execute_process(COMMAND ${CMAKE_COMMAND} --help-property-list
+OUTPUT_VARIABLE _props OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+
+STRING(REGEX REPLACE "\n" ";" _props "${_props}")
+
+list(REMOVE_DUPLICATES _props)
+
+function(print_target_props tgt)
+    if(NOT TARGET ${tgt})
+        message(WARNING "Target ${tgt} not found")
+        return()
+    endif()
+
+    message(STATUS "Target: ${tgt} properties")
+    foreach(p IN LISTS _props)
+        if(p MATCHES "<CONFIG>" AND NOT CMAKE_BUILD_TYPE)
+          continue()
+        endif()
+
+        string(REPLACE "<CONFIG>" "${CMAKE_BUILD_TYPE}" p "${p}")
+
+        get_property(v TARGET ${tgt} PROPERTY "${p}")
+        if(v)
+            message(STATUS "${tgt} ${p} = ${v}")
+        endif()
+    endforeach()
+endfunction()