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Re: error: '::vfwscanf' has not been declared

To: Makoto Fujiwara <makoto%if.t.u-tokyo.ac.jp@localhost>
Subject: Re: error: '::vfwscanf' has not been declared
From: nia <nia%NetBSD.org@localhost>
Date: Wed, 25 Dec 2024 09:06:41 +0000

On Mon, Dec 23, 2024 at 06:48:45PM +0900, Makoto Fujiwara wrote:
> /usr/include/g++/cwchar:164:11: error: '::vfwscanf' has not been declared
>    using ::vfwscanf;

There is a bug in the netbsd-9 (and earlier) libc/libstdc++ headers
where many standard functions will not be declared.

In most cases adding -D_NETBSD_SOURCE to CXXFLAGS fixes it.

Follow-Ups:
- CXXFLAGS won't work at do-package stage (?)
  - From: Makoto Fujiwara

References:
- error: '::vfwscanf' has not been declared
  - From: Makoto Fujiwara

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