Date: Fri, 22 Oct 2021 20:51:22 -0300
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>,
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
	Andres Freund <andres@anarazel.de>
Subject: Re: pg_dump versus ancient server versions
Message-ID: <202110222351.3f42l5fgo3lw@alvherre.pgsql>
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On 2021-Oct-22, Robert Haas wrote:

> In fact, I get that same failure on every branch older than 9.2. I
> expect I could work around that by disabling SSL or finding an older
> version of OpenSSL that works the way those branches expect, but that
> might not be the only problem, either.

I just tried to build 9.1.  My config line there doesn't have ssl, but I
do get this in the compile stage:

gram.c:69:25: error: conflicting types for ‘base_yylex’
   69 | #define yylex           base_yylex
      |                         ^~~~~~~~~~
scan.c:15241:12: note: in expansion of macro ‘yylex’
15241 | extern int yylex \
      |            ^~~~~
In file included from /pgsql/source/REL9_1_STABLE/src/backend/parser/gram.y:60:
/pgsql/source/REL9_1_STABLE/src/include/parser/gramparse.h:66:12: note: previous declaration of ‘base_yylex’ was here
   66 | extern int base_yylex(YYSTYPE *lvalp, YYLTYPE *llocp,
      |            ^~~~~~~~~~
gram.c:69:25: error: conflicting types for ‘base_yylex’
   69 | #define yylex           base_yylex
      |                         ^~~~~~~~~~
scan.c:15244:21: note: in expansion of macro ‘yylex’
15244 | #define YY_DECL int yylex \
      |                     ^~~~~
scan.c:15265:1: note: in expansion of macro ‘YY_DECL’
15265 | YY_DECL
      | ^~~~~~~
In file included from /pgsql/source/REL9_1_STABLE/src/backend/parser/gram.y:60:
/pgsql/source/REL9_1_STABLE/src/include/parser/gramparse.h:66:12: note: previous declaration of ‘base_yylex’ was here
   66 | extern int base_yylex(YYSTYPE *lvalp, YYLTYPE *llocp,
      |            ^~~~~~~~~~
make[3]: *** [../../../src/Makefile.global:655: gram.o] Error 1

-- 
Álvaro Herrera              Valdivia, Chile  —  https://www.EnterpriseDB.com/
"El Maquinismo fue proscrito so pena de cosquilleo hasta la muerte"
(Ijon Tichy en Viajes, Stanislaw Lem)