cmake: fix configure when using -DBUILD_TESTING=OFF

Author: Mizux

CMakeLists.txt

@@ -196,6 +196,7 @@ CMAKE_DEPENDENT_OPTION(BUILD_re2 "Build the re2 dependency Library" OFF
 message(STATUS "Build re2: ${BUILD_re2}")
 
 if(BUILD_TESTING)
+  set(OR_TOOLS_BUILD_TESTING ON)
   CMAKE_DEPENDENT_OPTION(BUILD_googletest "Build googletest" OFF
     "NOT BUILD_DEPS" ON)
   CMAKE_DEPENDENT_OPTION(BUILD_benchmark "Build benchmark" OFF
@@ -215,6 +216,7 @@ if(BUILD_TESTING)
       "NOT BUILD_DEPS" ON)
   endif()
 else()
+  set(OR_TOOLS_BUILD_TESTING OFF)
   set(BUILD_googletest OFF)
   set(BUILD_protobuf_matchers OFF)
   set(BUILD_benchmark OFF)

cmake/dependencies/CMakeLists.txt

@@ -120,7 +120,11 @@ if(BUILD_absl)
   set(ABSL_USE_SYSTEM_INCLUDES ON)
   # We want Abseil to declare what C++ standard it was compiled with.
   set(ABSL_PROPAGATE_CXX_STD ON)
-  set(ABSL_BUILD_TEST_HELPERS ON)
+  if(OR_TOOLS_BUILD_TESTING)
+    set(ABSL_BUILD_TEST_HELPERS ON)
+  else()
+    set(ABSL_BUILD_TEST_HELPERS OFF)
+  endif()
   set(ABSL_USE_EXTERNAL_GOOGLETEST ON)
   set(ABSL_FIND_GOOGLETEST OFF)
   # We want Abseil to keep the INSTALL rules enabled, even though it is a

ortools/math_opt/solvers/CMakeLists.txt

@@ -89,8 +89,10 @@ if(USE_SCIP)
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
   )
   # This test fail on windows and takes too long so we disable it.
-  set_tests_properties(cxx_math_opt_solvers_gscip_solver_test
-    PROPERTIES DISABLED TRUE)
+  if(TARGET cxx_math_opt_solvers_gscip_solver_test)
+    set_tests_properties(cxx_math_opt_solvers_gscip_solver_test
+      PROPERTIES DISABLED TRUE)
+  endif()
 endif()
 
 if(USE_GLOP)
@@ -148,8 +150,10 @@ ortools_cxx_test(
     "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
 )
 # This test takes too long so we disable it.
-set_tests_properties(cxx_math_opt_solvers_cp_sat_solver_test
-  PROPERTIES DISABLED TRUE)
+if(TARGET cxx_math_opt_solvers_cp_sat_solver_test)
+  set_tests_properties(cxx_math_opt_solvers_cp_sat_solver_test
+    PROPERTIES DISABLED TRUE)
+endif()
 
 ortools_cxx_test(
   NAME
@@ -248,8 +252,10 @@ if(USE_HIGHS)
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
   )
   # This test fail on windows and takes too long so we disable it.
-  set_tests_properties(cxx_math_opt_solvers_highs_solver_test
-    PROPERTIES DISABLED TRUE)
+  if(TARGET cxx_math_opt_solvers_highs_solver_test)
+    set_tests_properties(cxx_math_opt_solvers_highs_solver_test
+      PROPERTIES DISABLED TRUE)
+  endif()
 endif()
 
 if(USE_XPRESS)