From 9ff07eac3aafde8541e532f804e20beadb879a6f Mon Sep 17 00:00:00 2001
From: andrew-platt <andy.platt@nrel.gov>
Date: Wed, 27 Mar 2024 14:37:47 -0600
Subject: [PATCH] CMake: openmp optional for FF and CPP if not explicitly
 requested (correction)

---
 CMakeLists.txt | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 20297c27b6..b2dc54651d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,11 +110,13 @@ include(${CMAKE_SOURCE_DIR}/cmake/set_rpath.cmake)
 # OpenMP
 #-------------------------------------------------------------------------------
 
-if (OPENMP)
+if (OPENMP OR BUILD_FASTFARM OR BUILD_OPENFAST_CPP_API)
+  if (OPENMP)
     FIND_PACKAGE(OpenMP REQUIRED)
-endif()
-if (BUILD_FASTFARM OR BUILD_OPENFAST_CPP_API)
-   FIND_PACKAGE(OpenMP)
+  else()
+    # Optional for FF or the CPP interface
+    FIND_PACKAGE(OpenMP)
+  endif()
   if (OpenMP_Fortran_FOUND)
     set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${OpenMP_Fortran_FLAGS}")
     link_libraries("${OpenMP_Fortran_LIBRARIES}")