Compilation problems with 9.16.30 {External}

[William D. Colburn]

On Wed, Jun 15, 2022 at 07:22:50PM +0200, Ond??ej Surý wrote:
>You need to provide little bit more detail about the environment - operating system, compiler used, output of ./configure (including the options used).
>
>There???s no such thing as too many *relevant* details???

I'll trim down the configurte output:

===============================================================================
Configuration summary:
-------------------------------------------------------------------------------
Optional features enabled:
    Mutex lock type: adaptive
    GSS-API (--with-gssapi)
    IPv6 support (--enable-ipv6)
    Python tools (--with-python)
    XML statistics (--with-libxml2)
    HTTP zlib compression (--with-zlib)
    Print backtrace on crash (--enable-backtrace)
    Use symbol table for backtrace, named only (--enable-symtable)
    DNSSEC validation active by default (--enable-auto-validation)
    Dynamically loadable zone (DLZ) drivers:
        None
-------------------------------------------------------------------------------
Features disabled or unavailable on this platform:
    Small-system tuning (--with-tuning)
    Allow 'dnstap' packet logging (--enable-dnstap)
    GeoIP2 access control (--enable-geoip)
    DNS Response Policy Service interface (--enable-dnsrps)
    Allow 'fixed' rrset-order (--enable-fixed-rrset)
    Using PKCS#11 for Public-Key Cryptography (--with-native-pkcs11)
    Very verbose query trace logging (--enable-querytrace)
    Use GNU libtool (--with-libtool)
    CMocka Unit Testing Framework (--with-cmocka)
    JSON statistics (--with-json-c)
    LMDB database to store configuration for 'addzone' zones (--with-lmdb)
    IDN support (--with-libidn2)
-------------------------------------------------------------------------------
Configured paths:
    prefix: /tmp/bind
    sysconfdir: /etc
    localstatedir: /var
-------------------------------------------------------------------------------
Compiler: gcc -std=gnu99
    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
    Copyright (C) 2010 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    
Unrecognized options:
    --disable-openssl-version-check, --disable-ipv6
===============================================================================

The system is an RHEL6.10.

root at zia</tmp/root/bind-9.16.30># uname -a
Linux zia 2.6.32-696.20.1.el6.x86_64 #1 SMP Fri Jan 12 15:07:59 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
root at zia</tmp/root/bind-9.16.30># cat /etc/redhat-release 
Red Hat Enterprise Linux Workstation release 6.10 (Santiago)
root at zia</tmp/root/bind-9.16.30># 

Since the C language doesn't allow a typedef to be redifined, none of
this (os, configure output) seemed relevant, but when I poke around, it appears that at some
point the C language changed to allow a typedef to be redefined.  I had no idea.

The program:
  #include <stdio.h>
  typedef int int_t;
  typedef int int_t;
  int main( int argc, char **argv, char **envp ) {printf( "hello world\n" );}

Works with gcc 4.9.3, 5.4.0, 6.3.0, 7.2.0, and 8.5.0 (everything I had
handy to test with) but not 4.4.7, which is still the default on RHEL6.

So, I've updated my scripts that build bind to use one of our many
installed compilers, and now it works again

--Schlake
  Sysadmin IV, NRAO
  Work: 575-835-7281 (BACK IN THE OFFICE!)
  Cell: 575-517-5668 (out of work hours)