Index: test/CMakeLists.txt
===================================================================
--- test/CMakeLists.txt
+++ test/CMakeLists.txt
@@ -61,14 +61,12 @@
           dsymutil
           llvm-dwarfdump
           llvm-dwp
-          llvm-exegesis
           llvm-extract
           llvm-isel-fuzzer
           llvm-lib
           llvm-link
           llvm-lto2
           llvm-mc
-          llvm-mca
           llvm-modextract
           llvm-mt
           llvm-nm
@@ -101,8 +99,14 @@
           yaml2obj
         )
 
+if(TARGET llvm-mca)
+  list(APPEND LLVM_TEST_DEPENDS llvm-mca)
+endif()
+if(TARGET llvm-exegesis)
+  list(APPEND LLVM_TEST_DEPENDS llvm-exegesis)
+endif()
 if(TARGET llvm-lto)
-  set(LLVM_TEST_DEPENDS ${LLVM_TEST_DEPENDS} llvm-lto)
+  list(APPEND LLVM_TEST_DEPENDS llvm-lto)
 endif()
 
 # If Intel JIT events are supported, depend on a tool that tests the listener.
Index: unittests/tools/CMakeLists.txt
===================================================================
--- unittests/tools/CMakeLists.txt
+++ unittests/tools/CMakeLists.txt
@@ -4,7 +4,7 @@
   )
 endif()
 
-add_subdirectory(
-  llvm-exegesis
-)
+if(TARGET llvm-exegesis)
+  add_subdirectory(llvm-exegesis)
+endif()