1
0
mirror of https://github.com/postgres/postgres.git synced 2025-08-24 09:27:52 +03:00
Files
postgres/src/port
Tom Lane 3a6e2ff08a Fix things so that fopen's, not only open's, pass FILE_SHARE_DELETE
and other special flags on Windows.  May fix intermittent 'Permission
denied' errors.  Magnus Hagander
2006-08-30 18:06:27 +00:00
..
2006-06-07 22:24:46 +00:00
2005-10-15 02:49:52 +00:00
2006-06-07 22:24:46 +00:00
2006-04-28 04:39:41 +00:00
2003-11-29 19:52:15 +00:00
2006-07-06 02:12:32 +00:00
2004-10-07 13:59:45 +00:00

libpgport must have special behavior.  It supplies functions to both
libraries and applications.  However, there are two complexities:

1)  Libraries need to use object files that are compiled with exactly
the same flags as the library.  libpgport might not use the same flags,
so it is necessary to recompile the object files for individual
libraries.  This is done by removing -lpgport from the link line:

        # Need to recompile any libpgport object files
        LIBS := $(filter-out -lpgport, $(LIBS))

and adding infrastructure to recompile the object files:

        OBJS= execute.o typename.o descriptor.o data.o error.o prepare.o memory.o \
                connect.o misc.o path.o exec.o \
                $(filter snprintf.o, $(LIBOBJS))

The problem is that there is no testing of which object files need to be
added, but missing functions usually show up when linking user
applications.

2) For applications, we use -lpgport before -lpq, so the static files
from libpgport are linked first.  This avoids having applications
dependent on symbols that are _used_ by libpq, but not intended to be
exported by libpq.  libpq's libpgport usage changes over time, so such a
dependency is a problem.  Win32, Linux, and Darwin use an export list to
control the symbols exported by libpq.