From 1b1508521a1365ce8cec96ba32a183eea9ba36cd Mon Sep 17 00:00:00 2001
From: Mark Piper <mark.piper@colorado.edu>
Date: Wed, 18 Dec 2024 15:44:59 -0700
Subject: [PATCH] Use object libraries for test fixtures and example helpers

---
 example/CMakeLists.txt | 4 +++-
 test/CMakeLists.txt    | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index c9fabb6..2ae0bc6 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -2,9 +2,11 @@ include(CTest)
 
 include_directories(${CMAKE_Fortran_MODULE_DIRECTORY})
 
+add_library(helpers OBJECT testing_helpers.f90)
+
 function(make_example example_name)
   add_test(NAME ${example_name} COMMAND ${example_name} ${CMAKE_CURRENT_SOURCE_DIR})
-  add_executable(${example_name} ${example_name}.f90 testing_helpers.f90)
+  add_executable(${example_name} ${example_name}.f90 $<TARGET_OBJECTS:helpers>)
   target_link_libraries(${example_name} ${bmi_name})
 endfunction(make_example)
 
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 463b8e4..53daa32 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,9 +2,11 @@ include(CTest)
 
 include_directories(${CMAKE_Fortran_MODULE_DIRECTORY})
 
+add_library(fixtures OBJECT fixtures.f90)
+
 function(make_test test_name)
   add_test(NAME ${test_name} COMMAND ${test_name} "${CMAKE_CURRENT_SOURCE_DIR}/sample.cfg")
-  add_executable(${test_name} ${test_name}.f90 fixtures.f90)
+  add_executable(${test_name} ${test_name}.f90 $<TARGET_OBJECTS:fixtures>)
   target_link_libraries(${test_name} ${bmi_name})
 endfunction(make_test)