Hi all,
I am using MingW W64 from SVN, version 3.0 beta-ish.
There are few issues when compiling Postgres with MingW W64. There was
a patch submitted to this list in July 2011 but it does not address
these issues (that I can tell). The following applies to both 32 and 64
bit builds.
----
The header file crtdefs.h in MinGW typedefs errcode which conflicts with
Postgres' elog.h.
#ifndef __ERRCODE_DEFINED_MS
#define __ERRCODE_DEFINED_MS
typedef int errcode;
#endif
The previous patch #undef'ed errcode, which is probably not going to
help here. I added CPPFLAGS=-D__ERRCODE_DEFINED_MS to the configure
line to work around this.
How would a proper patch deal with this? Add an explicit #define when
MinGW W64 is detected?
----
MinGW W64's sys/stat.h #defines stat to be _stati64 and there is
subsequently a compilation error in port.h:
note: expected 'struct _stati64 *' but argument is of type 'struct stat *'
error: conflicting types for 'pgwin32_safestat'
As stupid as it is, I added #undef stat immediately after including
sys/stat.h in port.h:
#if defined(WIN32) && !defined(__CYGWIN__) && !defined(UNSAFE_STAT_OK)
#include <sys/stat.h>
#undef stat
extern int pgwin32_safestat(const char *path, struct stat * buf);
#define stat(a,b) pgwin32_safestat(a,b)
#endif
Though I might have tried -DUNSAFE_STAT_OK too, but didn't.
NOTE: I'm compiling Postgres exclusively to cross compile PL/Java and
run time behaviour is not a concern of mine.
I am not sure what macro magic would be proper here. Comments welcome.
----
There are series of redefined macros from the MinGW W64 CRT.
In pg_config_os:
warning: "_WIN32_WINNT" redefined [enabled by default]
warning: "fseeko" redefined [enabled by default]
warning: "ftello" redefined [enabled by default]
warning: "EMSGSIZE" redefined [enabled by default]
warning: "EAFNOSUPPORT" redefined [enabled by default]
warning: "EWOULDBLOCK" redefined [enabled by default]
warning: "ECONNRESET" redefined [enabled by default]
warning: "EINPROGRESS" redefined [enabled by default]
warning: "ENOBUFS" redefined [enabled by default]
warning: "EPROTONOSUPPORT" redefined [enabled by default]
warning: "ECONNREFUSED" redefined [enabled by default]
warning: "EOPNOTSUPP" redefined [enabled by default]
In port.h:
warning: "popen" redefined [enabled by default]
warning: "pclose" redefined [enabled by default]
And possibly some more. Do we need these redefines?
----
I'm willing to work on some (if not all) of these issues with proper
guidance.
--
Johann Oskarsson http://www.2ndquadrant.com/ |[]
PostgreSQL Development, 24x7 Support, Training and Services --+--
|
Blog: http://my.opera.com/myrkraverk/blog/
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