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Re: [PATCH] Use __fpurge when fpurge is undeclared

X-seq: zsh-workers 53986
From: "Jun. T" <takimoto-j@xxxxxxxxxxxxxxxxx>
To: zsh-workers@xxxxxxx
Subject: Re: [PATCH] Use __fpurge when fpurge is undeclared
Date: Fri, 3 Oct 2025 08:41:06 +0900
Archived-at: <https://zsh.org/workers/53986>
In-reply-to: <C67D0BD1-02AA-4E51-A339-3DA18A186A0A@kba.biglobe.ne.jp>
List-id: <zsh-workers.zsh.org>
References: <20250930192031.1472495-1-floppym@gentoo.org> <C67D0BD1-02AA-4E51-A339-3DA18A186A0A@kba.biglobe.ne.jp>

I tested on Alpine-3.22 and the test A04 succeeded without calling
fpurge(). Probably we don't need it on musl-based systems.

fpurge() exists as a weak alias to __fpurge in musl-libc, but it is
declared nowhere in header files. musl's git log indicates it was
removed from stdio.h by an old commit
https://git.musl-libc.org/cgit/musl/commit/?id=a34b0465ba14c70532b8eaba650a9eac228fce57
but the weak alias was not removed. I guess this is a bug of musl.

Follow-Ups:
- Re: [PATCH] Use __fpurge when fpurge is undeclared
  - From: Mike Gilbert

References:
- [PATCH] Use __fpurge when fpurge is undeclared
  - From: Mike Gilbert
- Re: [PATCH] Use __fpurge when fpurge is undeclared
  - From: Jun. T

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