[third-party] Respect LLVM_INSTALL_GTEST for llvm_gtest_main

mgorny · mgorny · commit dde05b4b9132 · 2023-03-13T17:11:57.000+01:00
Pass BUILDTREE_ONLY to llvm_gtest_main only if LLVM_INSTALL_GTEST is not set. This fixes 0807986. Otherwise, llvm_gtest_main cannot be used in LLVM_DISTRIBUTION_COMPONENTS, effectively making it impossible to install llvm_gtest correctly. Differential Revision: https://reviews.llvm.org/D145946
diff --git a/third-party/unittest/UnitTestMain/CMakeLists.txt b/third-party/unittest/UnitTestMain/CMakeLists.txt
@@ -1,3 +1,8 @@
+set(BUILDTREE_ONLY BUILDTREE_ONLY)
+if (LLVM_INSTALL_GTEST)
+  set(BUILDTREE_ONLY "")
+endif ()
+
 add_llvm_library(llvm_gtest_main
   TestMain.cpp
 
@@ -7,6 +12,5 @@ add_llvm_library(llvm_gtest_main
   LINK_COMPONENTS
   Support # Depends on llvm::cl
 
-  # This library is not meant to be in the install tree, only the build tree.
-  BUILDTREE_ONLY
+  ${BUILDTREE_ONLY}
   )
