[llvm-branch-commits] [flang] release/20.x: [flang][runtime] Make sure to link libexecinfo if it exists (#125344) (PR #125515)

[via llvm-branch-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-flang-runtime

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport cb2598dda1aae5096a77bc8a9f6679ca1b350e5e

Requested by: @<!-- -->brad0

---
Full diff: https://github.com/llvm/llvm-project/pull/125515.diff


1 Files Affected:

- (modified) flang/runtime/CMakeLists.txt (+7-2) 


``````````diff
diff --git a/flang/runtime/CMakeLists.txt b/flang/runtime/CMakeLists.txt
index fbfaae9a8806486..bf27a121e4d174c 100644
--- a/flang/runtime/CMakeLists.txt
+++ b/flang/runtime/CMakeLists.txt
@@ -59,10 +59,15 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
     )
 endif()
 
+set(linked_libraries FortranDecimal)
+
 # function checks
 find_package(Backtrace)
 set(HAVE_BACKTRACE ${Backtrace_FOUND})
 set(BACKTRACE_HEADER ${Backtrace_HEADER})
+if(HAVE_BACKTRACE)
+  list(APPEND linked_libraries ${Backtrace_LIBRARY})
+endif()
 
 include(CheckCXXSymbolExists)
 include(CheckCXXSourceCompiles)
@@ -271,7 +276,7 @@ if (NOT DEFINED MSVC)
   add_flang_library(FortranRuntime
     ${sources}
     LINK_LIBS
-    FortranDecimal
+    ${linked_libraries}
 
     INSTALL_WITH_TOOLCHAIN
   )
@@ -279,7 +284,7 @@ else()
   add_flang_library(FortranRuntime
     ${sources}
     LINK_LIBS
-    FortranDecimal
+    ${linked_libraries}
   )
   set(CMAKE_MSVC_RUNTIME_LIBRARY MultiThreaded)
   add_flang_library(FortranRuntime.static ${sources}

``````````

</details>


https://github.com/llvm/llvm-project/pull/125515
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