[llvm] b6be37b - [llvm] [cmake] Set EXCLUDE_FROM_ALL on gtest and TestingSupport

[Michał Górny via llvm-commits]

Author: Michał Górny
Date: 2022-11-06T08:55:20+01:00
New Revision: b6be37b0be5e1b524456c375700c76b7dae5171c

URL: https://github.com/llvm/llvm-project/commit/b6be37b0be5e1b524456c375700c76b7dae5171c
DIFF: https://github.com/llvm/llvm-project/commit/b6be37b0be5e1b524456c375700c76b7dae5171c.diff

LOG: [llvm] [cmake] Set EXCLUDE_FROM_ALL on gtest and TestingSupport

Exclude building googletest and LLVMTestingSupport libraries from
the `all` target.  If unittests are being built, these libraries will
be built as a dependency anyway.  If they are not being built, building
them makes little sense as they are not installed or used otherwise.

This will also make standalone builds of other projects easier, as it
makes it possible to include these directories without having to cover
them with additional conditions to prevent them from being built
unconditionally.

Differential Revision: https://reviews.llvm.org/D137035

Added: 
    

Modified: 
    llvm/lib/Testing/Support/CMakeLists.txt
    llvm/utils/unittest/CMakeLists.txt

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Testing/Support/CMakeLists.txt b/llvm/lib/Testing/Support/CMakeLists.txt
index 81774eb171ca..385d8eca2daa 100644
--- a/llvm/lib/Testing/Support/CMakeLists.txt
+++ b/llvm/lib/Testing/Support/CMakeLists.txt
@@ -1,3 +1,7 @@
+# Do not build unittest libraries automatically, they will be pulled in
+# by unittests if these are built.
+set(EXCLUDE_FROM_ALL ON)
+
 add_llvm_library(LLVMTestingSupport
   Annotations.cpp
   Error.cpp

diff  --git a/llvm/utils/unittest/CMakeLists.txt b/llvm/utils/unittest/CMakeLists.txt
index 0e54e0e57c35..302e9e0e8440 100644
--- a/llvm/utils/unittest/CMakeLists.txt
+++ b/llvm/utils/unittest/CMakeLists.txt
@@ -38,6 +38,10 @@ if (HAVE_LIBPTHREAD)
   list(APPEND LIBS pthread)
 endif()
 
+# Do not build unittest libraries automatically, they will be pulled in
+# by unittests if these are built.
+set(EXCLUDE_FROM_ALL ON)
+
 add_llvm_library(llvm_gtest
   googletest/src/gtest-all.cc
   googlemock/src/gmock-all.cc