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Date: Tue, 22 Apr 2014 06:28:04 -0700 (PDT)
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Subject: GLIBC_2.14  memcpy
From: Ian Douglas <ian@vionia.com>
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Xref: number.nntp.dca.giganews.com comp.lang.ada:185936
Date: 2014-04-22T06:28:04-07:00
List-Id: <comp.lang.ada>

Hi all

So I write my first hello world program, and it runs fine. Upload to the se=
rver, but it does not run there.

./Hello1: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./H=
ello1)

Dev box is Gentoo linux, server is CentOS 6.2

Google shows many C programmers complaining about similar issue.

Some analysis shows the problem to be memcpy wanting GLIBC_2.14 while every=
thing else is happy with GLIBC_2.25.

I  can't find anything relevant in this newsgroup (surprising!), or on AdaC=
ore's site (program was built with GPS), so I was wondering if anyone has a=
 workaround ... the C people add a line to force the compiler to use a more=
 recent version of memcpy, as per=20

__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");

While I am horrified at the necessity of doing something like that (especia=
lly for a simple Hello World), how would I do this in Ada / Gnat?

(A way to do it globally for C is here:=20
http://rjpower9000.wordpress.com/2012/04/09/fun-with-shared-libraries-versi=
on-glibc_2-14-not-found/)

Thanks, Ian