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https://git.postgresql.org/git/postgresql.git
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e6927270cd
Autoconf is showing its age, fewer and fewer contributors know how to wrangle it. Recursive make has a lot of hard to resolve dependency issues and slow incremental rebuilds. Our home-grown MSVC build system is hard to maintain for developers not using Windows and runs tests serially. While these and other issues could individually be addressed with incremental improvements, together they seem best addressed by moving to a more modern build system. After evaluating different build system choices, we chose to use meson, to a good degree based on the adoption by other open source projects. We decided that it's more realistic to commit a relatively early version of the new build system and mature it in tree. This commit adds an initial version of a meson based build system. It supports building postgres on at least AIX, FreeBSD, Linux, macOS, NetBSD, OpenBSD, Solaris and Windows (however only gcc is supported on aix, solaris). For Windows/MSVC postgres can now be built with ninja (faster, particularly for incremental builds) and msbuild (supporting the visual studio GUI, but building slower). Several aspects (e.g. Windows rc file generation, PGXS compatibility, LLVM bitcode generation, documentation adjustments) are done in subsequent commits requiring further review. Other aspects (e.g. not installing test-only extensions) are not yet addressed. When building on Windows with msbuild, builds are slower when using a visual studio version older than 2019, because those versions do not support MultiToolTask, required by meson for intra-target parallelism. The plan is to remove the MSVC specific build system in src/tools/msvc soon after reaching feature parity. However, we're not planning to remove the autoconf/make build system in the near future. Likely we're going to keep at least the parts required for PGXS to keep working around until all supported versions build with meson. Some initial help for postgres developers is at https://wiki.postgresql.org/wiki/Meson With contributions from Thomas Munro, John Naylor, Stone Tickle and others. Author: Andres Freund <andres@anarazel.de> Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Author: Peter Eisentraut <peter@eisentraut.org> Reviewed-By: Peter Eisentraut <peter.eisentraut@enterprisedb.com> Discussion: https://postgr.es/m/20211012083721.hvixq4pnh2pixr3j@alap3.anarazel.de |
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| chklocale.c | ||
| dirent.c | ||
| dirmod.c | ||
| explicit_bzero.c | ||
| getopt_long.c | ||
| getopt.c | ||
| getpeereid.c | ||
| inet_aton.c | ||
| inet_net_ntop.c | ||
| kill.c | ||
| Makefile | ||
| meson.build | ||
| mkdtemp.c | ||
| noblock.c | ||
| open.c | ||
| path.c | ||
| pg_bitutils.c | ||
| pg_crc32c_armv8_choose.c | ||
| pg_crc32c_armv8.c | ||
| pg_crc32c_sb8.c | ||
| pg_crc32c_sse42_choose.c | ||
| pg_crc32c_sse42.c | ||
| pg_strong_random.c | ||
| pgcheckdir.c | ||
| pgmkdirp.c | ||
| pgsleep.c | ||
| pgstrcasecmp.c | ||
| pgstrsignal.c | ||
| pqsignal.c | ||
| preadv.c | ||
| pthread_barrier_wait.c | ||
| pthread-win32.h | ||
| pwritev.c | ||
| qsort_arg.c | ||
| qsort.c | ||
| quotes.c | ||
| README | ||
| snprintf.c | ||
| strerror.c | ||
| strlcat.c | ||
| strlcpy.c | ||
| strnlen.c | ||
| strtof.c | ||
| system.c | ||
| tar.c | ||
| thread.c | ||
| win32.ico | ||
| win32dlopen.c | ||
| win32env.c | ||
| win32error.c | ||
| win32fdatasync.c | ||
| win32getrusage.c | ||
| win32gettimeofday.c | ||
| win32link.c | ||
| win32ntdll.c | ||
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| win32security.c | ||
| win32setlocale.c | ||
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| win32ver.rc | ||
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.