Re: Compilation failure: 8.2.4 and 8.1.0 under XPPro/MinGW

Phil,

I found the same problem. It seems that MinGW has a broken header file.
I made the following changes:

In MinGW/include/sys/time.h

--------- Cut here ------------
#ifndef __MINGW_H
/* Provided for compatibility with code that assumes that
   the presence of gettimeofday function implies a definition
   of struct timezone. */
struct timezone
{
  int tz_minuteswest; /* of Greenwich */
  int tz_dsttime;     /* type of dst correction to apply */
};

/*
   Implementation as per:
   The Open Group Base Specifications, Issue 6
   IEEE Std 1003.1, 2004 Edition

   The timezone pointer arg is ignored.  Errors are ignored.
*/
int __cdecl gettimeofday(struct timeval *__restrict__,
             void *__restrict__  /*    tzp (unused) */);
#endif
--------- Cut here ------------

This is not documented anywhere. On the postgres site or the mingw
sites.
Hope that helps.

Match

-----Original Message-----
From: pgsql-ports-owner@postgresql.org
[mailto:pgsql-ports-owner@postgresql.org] On Behalf Of Phil Mills
Sent: Tuesday, July 03, 2007 3:30 PM
To: pgsql-ports@postgresql.org
Subject: [PORTS] Compilation failure: 8.2.4 and 8.1.0 under XPPro/MinGW

I've seen the build error below referenced in several messages, but
haven't seen a clear answer for how to resolve it.

Environment: XP Pro with MSys/MinGW freshly installed according to the
docs here: http://www.postgresql.org/docs/faqs.FAQ_MINGW.html
Zlib is installed; Visual Studio and Cygwin are also on the system but
should be out of the way.

Reason for building: increase NAMEDATALEN so it'll quit truncating my
absurdly-large column names.

Output from Make (substantially the same whether I'm building 8.2.4 or
8.1.0):

pmills@ITLPT9060 /c/postgresql-8.2.4
$ make
make -C doc all
make[1]: Entering directory `/c/postgresql-8.2.4/doc'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/c/postgresql-8.2.4/doc'
make -C src all
make[1]: Entering directory `/c/postgresql-8.2.4/src'
make -C port all
make[2]: Entering directory `/c/postgresql-8.2.4/src/port'
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline
-Wdeclaration-after-                             statement
-Wendif-labels -fno-strict-aliasing -I../../src/port -DFRONTEND -I../.
./src/include -I./src/include/port/win32 -DEXEC_BACKEND
"-I../../src/include/po                             rt/win32"  -c -o
getrusage.o getrusage.c
In file included from ../../src/include/rusagestub.h:17,
                 from getrusage.c:18:
c:/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/sys/time.h:27:
error:                              redefinition of `struct timezone'
c:/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/sys/time.h:40:
error:                              conflicting types for 'gettimeofday'
../../src/include/port.h:292: error: previous declaration of
'gettimeofday' was                              here
c:/mingw/bin/../lib/gcc/mingw32/3.4.2/../../../../include/sys/time.h:40:
error:                              conflicting types for 'gettimeofday'
../../src/include/port.h:292: error: previous declaration of
'gettimeofday' was                              here
make[2]: *** [getrusage.o] Error 1
make[2]: Leaving directory `/c/postgresql-8.2.4/src/port'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/c/postgresql-8.2.4/src'
make: *** [all] Error 2

pmills@ITLPT9060 /c/postgresql-8.2.4
$


Could someone please provide either:
* Better instructions for how to install/configure MSys and MinGW or
* Better instructions for how to compile Postgres using MinGW?

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