Unable to build 'debug' with VS2015

[dpolivy]

I've pulled down the latest code from master, and am trying to build it with VS2015 on my machine. Python, etc are all installed correctly. Building a release build works just fine, but when I try to build debug, I get a bunch of linker errors that seem to indicate MSVCRT is missing.

Steps:

1. Clone repo
2. npm install
3. node-gyp configure
4. node-gyp build --> success
5. node-gyp build -debug --> fail

Sample error output (32 linker errors total):

edge.obj : error LNK2028: unresolved token (0A0005FF) "extern "C" int __cdecl _
CrtDbgReportW(int,wchar_t const *,int,wchar_t const *,wchar_t const *,...)" (?_
CrtDbgReportW@@$$J0YAHHPEB_WH00ZZ) referenced in function "public: void __cdecl
 std::_Container_base12::_Orphan_all(void)" (?_Orphan_all@_Container_base12@std
@@$$FQEAAXXZ) [C:\git\edge\build\edge_nativeclr.vcxproj]
v8synchronizationcontext.obj : error LNK2020: unresolved token (0A000602) "exte
rn "C" int __cdecl _CrtDbgReportW(int,wchar_t const *,int,wchar_t const *,wchar
_t const *,...)" (?_CrtDbgReportW@@$$J0YAHHPEB_WH00ZZ) [C:\git\edge\build\edge_
nativeclr.vcxproj]
clractioncontext.obj : error LNK2020: unresolved token (0A000600) "extern "C" i
nt __cdecl _CrtDbgReportW(int,wchar_t const *,int,wchar_t const *,wchar_t const
 *,...)" (?_CrtDbgReportW@@$$J0YAHHPEB_WH00ZZ) [C:\git\edge\build\edge_nativecl
r.vcxproj]
clrfuncreflectionwrap.obj : error LNK2020: unresolved token (0A0005F9) "extern
"C" int __cdecl _CrtDbgReportW(int,wchar_t const *,int,wchar_t const *,wchar_t
const *,...)" (?_CrtDbgReportW@@$$J0YAHHPEB_WH00ZZ) [C:\git\edge\build\edge_nat
iveclr.vcxproj]
persistentdisposecontext.obj : error LNK2020: unresolved token (0A000601) "exte
rn "C" int __cdecl _CrtDbgReportW(int,wchar_t const *,int,wchar_t const *,wchar
_t const *,...)" (?_CrtDbgReportW@@$$J0YAHHPEB_WH00ZZ) [C:\git\edge\build\edge_
nativeclr.vcxproj]

C:\git\edge\build\Debug\edge_nativeclr.node : fatal error LNK1120: 32 unresolve
d externals [C:\git\edge\build\edge_nativeclr.vcxproj]

Funny thing is the CoreCLR library builds just fine; this is only impacting the native CLR version.

As a potential fix/hack, I manually modified build/edge_nativeclr.vcxproj to add msvcmrtd.lib to the <AdditionalDependencies> section. That seems to work, but does give another linker warning:

LINK : warning LNK4098: defaultlib 'ucrtd.lib' conflicts with use of other libs
; use /NODEFAULTLIB:library [C:\git\edge\build\edge_nativeclr.vcxproj]

Not sure if this is a node-gyp issue, or something with the build configuration for edge. Any ideas?

[dpolivy]

Related to this tools\buildall.bat appears to hardcode msvs_version=2013 which is causing problems. If I update that to 2015, then buildall.bat appears to work OK.

[dpolivy]

The proper fix to build debug with VS2015 is to change the RuntimeLibrary property for the debug config to 3, which is the value for the runtime multithreaded debug DLL.