swprintf and vswprintf not declared?

问题

I am trying to compile Botan on Windows with MinGW, and am receiving the following error during compilation:

c:\qt\2010.04\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cwchar:159: error:
'::swprintf' has not been declared
c:\qt\2010.04\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cwchar:166: error:
'::vswprintf' has not been declared

Why are swprintf and vswprintf not declared, and how can I fix this?

回答1:

Try putting in

#undef __STRICT_ANSI__ 

before including stdio.h

回答2:

had the same problem compiling Grantlee using MinGW (Qt 2010.05).

How I got it to compile:

• find file cwchar (C:\Qt\2010.05\mingw\lib\gcc\mingw32\4.4.0\include\c++\cwchar)

• comment the following lines out (around line 160)

  using ::swprintf;

  using ::vswprintf;

回答3:

When running make ensure that -ansi flag is not set. If this flag is being used then remove it and the problem will be solved.

来源：https://stackoverflow.com/questions/3445312/swprintf-and-vswprintf-not-declared