From: Ivan Maidanski <ivmai@mail.ru>
Date: Tue, 13 Aug 2019 07:48:28 +0000 (+0300)
Subject: Eliminate 'treating c input as c++ when in C++ mode' Clang warning (CMake)
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b6d8aadafdc79d8159f3ecac738d6896c960405a;p=gc

Eliminate 'treating c input as c++ when in C++ mode' Clang warning (CMake)

* CMakeLists.txt [build_tests && enable_cplusplus
&& !(BORLAND || MSVC || WATCOM)]: Add "-x c++" compile option.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e017f389..eacea37f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -394,7 +394,11 @@ if (build_tests)
   if (enable_cplusplus)
     set_source_files_properties(tests/leak_test.c tests/test.c
                                 PROPERTIES LANGUAGE CXX)
-  endif()
+    # To avoid "treating 'c' input as 'c++' when in C++ mode" Clang warning.
+    if (NOT (BORLAND OR MSVC OR WATCOM))
+      add_compile_options(-x c++)
+    endif()
+  endif(enable_cplusplus)
 
   add_executable(gctest WIN32 tests/test.c)
   target_link_libraries(gctest PRIVATE gc)