[PATCH] D134990: [CMake] Provide Findzstd module

[Petr Hosek via Phabricator via llvm-commits]

phosek updated this revision to Diff 465320.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134990/new/

https://reviews.llvm.org/D134990

Files:
  llvm/cmake/modules/Findzstd.cmake


Index: llvm/cmake/modules/Findzstd.cmake
===================================================================
--- /dev/null
+++ llvm/cmake/modules/Findzstd.cmake
@@ -0,0 +1,49 @@
+# Try to find the zstd library
+#
+# If successful, the following variables will be defined:
+# zstd_INCLUDE_DIR
+# zstd_LIBRARY
+# zstd_FOUND
+#
+# Additionally, one of the following import targets will be defined:
+# zstd::libzstd_shared
+# zstd::libzstd_static
+
+if(MSVC)
+  set(zstd_SHARED_LIBRARY_SUFFIX "\\${CMAKE_LINK_LIBRARY_SUFFIX}$")
+  set(zstd_STATIC_LIBRARY_SUFFIX "_static\\${CMAKE_STATIC_LIBRARY_SUFFIX}$")
+else()
+  set(zstd_SHARED_LIBRARY_SUFFIX "\\${CMAKE_SHARED_LIBRARY_SUFFIX}$")
+  set(zstd_STATIC_LIBRARY_SUFFIX "\\${CMAKE_STATIC_LIBRARY_SUFFIX}$")
+endif()
+
+find_path(zstd_INCLUDE_DIR NAMES zstd.h)
+find_library(zstd_LIBRARY NAMES zstd zstd_static)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+    zstd DEFAULT_MSG
+    zstd_LIBRARY zstd_INCLUDE_DIR
+)
+
+if(zstd_FOUND)
+  if(zstd_LIBRARY MATCHES "${zstd_SHARED_LIBRARY_SUFFIX}$" AND
+     NOT TARGET zstd::libzstd_shared)
+    add_library(zstd::libzstd_shared SHARED IMPORTED)
+    set_target_properties(zstd::libzstd_shared PROPERTIES
+          INTERFACE_INCLUDE_DIRECTORIES "${zstd_INCLUDE_DIR}"
+          IMPORTED_LOCATION "${zstd_LIBRARY}")
+  endif()
+  if(zstd_LIBRARY MATCHES "${zstd_STATIC_LIBRARY_SUFFIX}$" AND
+     NOT TARGET zstd::libzstd_static)
+    add_library(zstd::libzstd_static STATIC IMPORTED)
+    set_target_properties(zstd::libzstd_static PROPERTIES
+        INTERFACE_INCLUDE_DIRECTORIES "${zstd_INCLUDE_DIR}"
+        IMPORTED_LOCATION "${zstd_LIBRARY}")
+  endif()
+endif()
+
+unset(zstd_SHARED_LIBRARY_SUFFIX)
+unset(zstd_STATIC_LIBRARY_SUFFIX)
+
+mark_as_advanced(zstd_INCLUDE_DIR zstd_LIBRARY)


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