Turn TINK_BUILD_TESTS into an option, disable it by default.

PiperOrigin-RevId: 239196540
GitOrigin-RevId: 3c494c5339afe6ac88452fd922fd849215cf4e42

CMakeLists.txt

@@ -6,6 +6,8 @@ include(tink_version.cmake)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
+option(TINK_BUILD_TESTS "Build Tink tests" OFF)
+
 include(TinkWorkspace)
 include(TinkBuildRules)
 include(TinkUtil)

cmake/TinkBuildRules.cmake

@@ -25,19 +25,15 @@
 #   TINK_GENFILE_DIR generated content root, such pb.{cc,h} files.
 #   TINK_INCLUDE_DIRS list of global include paths.
 #   TINK_CXX_STANDARD C++ standard to enforce, 11 for now.
-#   TINK_ENABLE_TESTS flag, set to false to disable tests (default true).
+#   TINK_BUILD_TESTS flag, set to false to disable tests (default false).
 #
 # Sensible defaults are provided for all variables, except TINK_MODULE, which is
 # defined by calls to tink_module(). Please don't alter it directly.
 
 include(CMakeParseArguments)
 include(GoogleTest)
 
-if (NOT DEFINED TINK_ENABLE_TESTS)
-  set(TINK_ENABLE_TESTS true)
-endif()
-
-if (TINK_ENABLE_TESTS)
+if (TINK_BUILD_TESTS)
   enable_testing()
 endif()
 
@@ -158,7 +154,7 @@ function(tink_cc_test)
     "SRCS;DEPS;DATA"
   )
 
-  if (NOT TINK_ENABLE_TESTS)
+  if (NOT TINK_BUILD_TESTS)
     return()
   endif()
 

examples/helloworld/cc/CMakeLists.txt

@@ -3,7 +3,6 @@ cmake_minimum_required(VERSION 3.5)
 project(TinkHelloWorld CXX)
 
 set(CMAKE_BUILD_TYPE Release)
-set(TINK_ENABLE_TESTS false)
 
 # Import Tink as an in-tree dependency.
 add_subdirectory(../../.. "${CMAKE_CURRENT_BINARY_DIR}/tink")