From 5a77c2e02a568ce17a2571953ea56066f8ca09a3 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 2 Jun 2023 09:15:40 -0400
Subject: FindOpenACC: Keep flags together in imported target usage
 requirements

If `OpenACC_C_FLAGS` contains `-h acc`, the flag pair needs to
be preserved as a shell command fragment, and must not be split by
de-duplication with other `target_compile_options`.

Fixes: #24963
---
 Modules/FindOpenACC.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Modules/FindOpenACC.cmake b/Modules/FindOpenACC.cmake
index 00e42b8..436f5ea 100644
--- a/Modules/FindOpenACC.cmake
+++ b/Modules/FindOpenACC.cmake
@@ -294,9 +294,9 @@ foreach (LANG IN ITEMS C CXX Fortran)
   endif()
   if(OpenACC_${LANG}_FLAGS)
     set_property(TARGET OpenACC::OpenACC_${LANG} PROPERTY
-      INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${OpenACC_${LANG}_OPTIONS}>")
+      INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:SHELL:${OpenACC_${LANG}_FLAGS}>")
     set_property(TARGET OpenACC::OpenACC_${LANG} PROPERTY
-      INTERFACE_LINK_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${OpenACC_${LANG}_OPTIONS}>")
+      INTERFACE_LINK_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:SHELL:${OpenACC_${LANG}_FLAGS}>")
     unset(_OpenACC_${LANG}_OPTIONS)
   endif()
 endforeach()
-- 
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