postgresql/src/port
David Rowley 6ff385f20c Meson: check for pg_config_paths.h left over from make
The meson build scripts attempt to find files left over from configure
and fail, mentioning that "make maintainer-clean" should be run to remove
these.  This seems to have been done for files generated from configure.
pg_config_paths.h is generated during the actual make build, so seems to
have been missed.  This would result in compilation using the wrong
pg_config_paths.h file.

Here we just add this file to generated_sources_ac so that meson errors
out if pg_config_paths.h exists.

Likely this wasn't noticed before because make maintainer-clean will
remove pg_config_paths.h, however, people using the MSVC build scripts
are more likely to run into issues and they have to manually remove
these files and pg_config_paths.h wasn't listed as a conflicting file to
remove in the meson log.

Backpatch-through: 16, where meson support was added
Discussion: https://postgr.es/m/CAApHDvqjYOxZfmLKAOWKFEE7LOr9_E6UA6YNmx9r8nxStcS3gg@mail.gmail.com
2023-08-24 10:33:53 +12:00
..
.gitignore Build src/port files as a library with -fPIC, and use that in libpq. 2018-09-27 11:23:43 -04:00
bsearch_arg.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
chklocale.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
dirent.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
dirmod.c Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
explicit_bzero.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
getopt.c Use our own getopt() on OpenBSD. 2019-01-18 15:06:26 -05:00
getopt_long.c Teach in-tree getopt_long() to move non-options to the end of argv. 2023-07-12 20:34:39 -07:00
getpeereid.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
inet_aton.c Correct include file name in inet_aton fallback. 2017-10-01 17:41:00 -07:00
inet_net_ntop.c Remove configure probe for sockaddr_in6 and require AF_INET6. 2022-08-26 10:18:30 +12:00
kill.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
Makefile Rename port/thread.c to port/user.c. 2023-07-09 18:17:09 +12:00
meson.build Meson: check for pg_config_paths.h left over from make 2023-08-24 10:33:53 +12:00
mkdtemp.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
noblock.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
open.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
path.c Remove gratuitous references to postmaster program 2023-01-26 10:48:32 +01:00
pg_bitutils.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_crc32c_armv8.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_crc32c_armv8_choose.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_crc32c_loongarch.c Use native CRC instructions on 64-bit LoongArch 2023-08-10 11:36:15 +07:00
pg_crc32c_sb8.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_crc32c_sse42.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_crc32c_sse42_choose.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_strong_random.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pgcheckdir.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pgmkdirp.c Fix various typos and grammar errors in comments. 2015-04-26 18:42:31 +02:00
pgsleep.c Use nanosleep() to implement pg_usleep(). 2023-03-15 17:57:12 +13:00
pgstrcasecmp.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pgstrsignal.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pqsignal.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
preadv.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pthread-win32.h Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
pthread_barrier_wait.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pwritev.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
qsort.c Use sort_template.h for qsort() and qsort_arg(). 2021-03-03 17:02:32 +13:00
qsort_arg.c Use sort_template.h for qsort() and qsort_arg(). 2021-03-03 17:02:32 +13:00
quotes.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
README AIX: Fix missing libpq symbols by respecting SHLIB_EXPORTS. 2021-09-06 11:27:59 -07:00
snprintf.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
strerror.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
strlcat.c pgindent run for 9.4 2014-05-06 12:12:18 -04:00
strlcpy.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
strnlen.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
strtof.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
system.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
tar.c Add and use symbolic constants for tar header offsets and file types. 2023-08-01 13:50:42 -04:00
user.c Rename port/thread.c to port/user.c. 2023-07-09 18:17:09 +12:00
win32.ico Revert binary change in copyright year adjustment. 2012-01-01 19:40:13 -05:00
win32common.c Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:38 +09:00
win32dlopen.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32env.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32error.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32fdatasync.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32fseek.c Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:38 +09:00
win32getrusage.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32gettimeofday.c Simplify gettimeofday for Windows. 2022-08-07 12:35:36 +12:00
win32link.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32ntdll.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32pread.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32pwrite.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32security.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32setlocale.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
win32stat.c Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:38 +09:00
win32ver.rc Update copyright for 2023 2023-01-02 15:00:37 -05:00

src/port/README

libpgport
=========

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 strlcat.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.  Windows, Linux, AIX, and macOS use an export
list to control the symbols exported by libpq.