instantiate std::variant to make things fail if not supported

shogun-toolbox · May 22, 2018 · ce69368 · ce69368
1 parent 21e932b
commit ce69368
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/shogun/CMakeLists.txt b/src/shogun/CMakeLists.txt
@@ -325,7 +325,7 @@ ENDIF()
 #### LAPACK
 include(ShogunFindLAPACK)
 
-CHECK_CXX_SOURCE_COMPILES("#include <variant>\n int main(int argc, char** argv) { return 0; }" HAVE_STD_VARIANT)
+CHECK_CXX_SOURCE_COMPILES("#include <variant>\n int main(int argc, char** argv) { std::variant<int, float> v; return 0; }" HAVE_STD_VARIANT)
 # variant
 IF (NOT HAVE_STD_VARIANT)
   include(external/variant)