Re: fpurge implicit declaration error glibc 2.41

[Chet Ramey]

On 11/13/25 4:08 PM, Emanuele Torre wrote:

The 81d85842687 commit from 2025-11-13 introduced an fpurge (stdout) in
sig.c

When compiling using:
     $ gcc --version|sed q
     gcc (Gentoo 14.3.1_p20250801 p4) 14.3.1 20250801
     $ /usr/lib/ld-linux.so.2 --version|sed q
     ld.so (Gentoo 2.41-r6 (patchset 8)) stable release version 2.41.

I get the following error:
     ../sig.c: In function ‘throw_to_top_level’:
     ../sig.c:467:5: error: implicit declaration of function ‘fpurge’ 
[-Wimplicit-function-declaration]
       467 |     fpurge (stdout);
           |     ^~~~~~

Thanks for the report. It's an easy fix to enable the declaration in
externs.h.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

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