Commit 7e57e6ae authored by Michael Stürmer's avatar Michael Stürmer Committed by Brad King
Browse files

VS: Do not reference output assemblies if not possible for CSharp target

Since commit v3.9.0-rc4~4^2 (Vs: allow CSharp targets to be linked to
CXX targets, 2017-06-20) CSharp targets get `ProjectReference` entries
to their dependencies.  This causes VS to also reference the
dependency's output assembly by default, which is incorrect for
non-managed targets.

Fix this by setting `ReferenceOutputAssembly` to `false` for targets
that can't provide output assemblies.  Unmanaged C++ targets (shared
libs & executables) can still be referenced and a warning will be shown
in the IDE but the build will not break anymore.

Fixes: #17172
parent 29907992
......@@ -778,6 +778,19 @@ bool cmGlobalVisualStudioGenerator::TargetIsCSharpOnly(
return false;
bool cmGlobalVisualStudioGenerator::TargetCanBeReferenced(
cmGeneratorTarget const* gt)
if (this->TargetIsCSharpOnly(gt)) {
return true;
if (gt->GetType() != cmStateEnums::SHARED_LIBRARY &&
gt->GetType() != cmStateEnums::EXECUTABLE) {
return false;
return true;
bool cmGlobalVisualStudioGenerator::TargetCompare::operator()(
cmGeneratorTarget const* l, cmGeneratorTarget const* r) const
......@@ -85,6 +85,9 @@ public:
// return true if target is C# only
static bool TargetIsCSharpOnly(cmGeneratorTarget const* gt);
// return true if target can be referenced by C# targets
bool TargetCanBeReferenced(cmGeneratorTarget const* gt);
/** Get the top-level registry key for this VS version. */
std::string GetRegistryBase();
......@@ -3502,6 +3502,13 @@ void cmVisualStudio10TargetGenerator::WriteProjectReferences()
(*this->BuildFileStream) << "</Project>\n";
this->WriteString("<Name>", 3);
(*this->BuildFileStream) << name << "</Name>\n";
if (csproj == this->ProjectType) {
if (!static_cast<cmGlobalVisualStudioGenerator*>(this->GlobalGenerator)
->TargetCanBeReferenced(dt)) {
"<ReferenceOutputAssembly>false</ReferenceOutputAssembly>\n", 3);
this->WriteString("</ProjectReference>\n", 2);
this->WriteString("</ItemGroup>\n", 1);
......@@ -15,3 +15,9 @@ target_compile_options(CLIApp PRIVATE "/clr")
add_executable(CSharpLinkToCxx csharp.cs)
target_link_libraries(CSharpLinkToCxx CLIApp)
# this unmanaged C++ library will be added to the C#/.NET
# references of CSharpLinkToCxx but it will show a warning
# because it is unmanaged
add_library(CppNativeApp SHARED cpp_native.hpp cpp_native.cpp)
target_link_libraries(CSharpLinkToCxx CppNativeApp)
#include "cpp_native.hpp"
#include <iostream>
namespace CppApp {
void MyCpp::testMyCpp()
std::cout << "#message from CppApp" << std::endl;
#pragma once
namespace CppApp {
class MyCpp
void testMyCpp();
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