Undefined reference to `__ms_vsnprintf' when l

问题:

I am trying to compile the GLFW quickstart guide (Here) in windows 8 64-bit using mingw. I am using the official 32 bit windows binary from the glfw website.

Everything works fine when I link the glfw library dynamically by linking -lglfw3dll -lgdi32 -lopengl32 -lglew32 and defining GLFW_DLL.

When I try to link glfw statically, however, I get undefined reference to '__ms_vsnprintf'

My command to link statically is mingw32-g++.exe -o bin\Release\test.exe obj\Release\main.o -s -lglfw3 -lgdi32 -lopengl32 -lglew32s with GLEW_STATIC defined.

回答1:

I got the same problem when I tried to build an example app for GLFW. I switched the compiler suite from original MinGW32 to MinGW-W64 and that solved the problem. I came up with that idea after reading this post:

http://mingw-users.1079350.n2.nabble.com/missing-symbol-ms-vsnprintf-when-linking-with-cross-compiled-library-td7582798.html

Seems the GLFW libs are build with a MinGW64 or MinGW-W64.

回答2:

MinGW\include\stdio.h:

/* The following pair ALWAYS refer to the MSVCRT implementations...
 */
_CRTIMP int __cdecl __MINGW_NOTHROW _snprintf (char*, size_t, const char*, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW _vsnprintf (char*, size_t, const char*, __VALIST);
_CRTIMP int __cdecl __MINGW_NOTHROW _vscprintf (const char*, __VALIST);

So just use them with underscore in front of them.