[llvm] [llvm-config] Make llvm-config --system-libs obey LLVM_USE_STATIC_ZSTD. (PR #93754)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: Kyle Huey (khuey)

<details>
<summary>Changes</summary>

LLVM's build system does the right thing but LLVM_SYSTEM_LIBS ends up containing the shared library. Emit the static library instead when appropriate.

CC @<!-- -->MaskRay since zstd compression is relevant to his interests.

---
Full diff: https://github.com/llvm/llvm-project/pull/93754.diff


1 Files Affected:

- (modified) llvm/lib/Support/CMakeLists.txt (+6-2) 


``````````diff
diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt
index 03e888958a071..1ab5bd370c480 100644
--- a/llvm/lib/Support/CMakeLists.txt
+++ b/llvm/lib/Support/CMakeLists.txt
@@ -321,8 +321,12 @@ if(LLVM_ENABLE_ZSTD)
   if(NOT zstd_library)
     get_property(zstd_library TARGET ${zstd_target} PROPERTY LOCATION)
   endif()
-  get_library_name(${zstd_library} zstd_library)
-  set(llvm_system_libs ${llvm_system_libs} "${zstd_library}")
+  if (zstd_target STREQUAL zstd::libzstd_shared)
+    get_library_name(${zstd_library} zstd_library)
+    set(llvm_system_libs ${llvm_system_libs} "${zstd_library}")
+  else()
+    set(llvm_system_libs ${llvm_system_libs} "${zstd_STATIC_LIBRARY}")
+  endif()
 endif()
 
 if(LLVM_ENABLE_TERMINFO)

``````````

</details>


https://github.com/llvm/llvm-project/pull/93754