From 79cd66f28c65abbdc0ed695a9583a530fe6ece14 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Wed, 12 Nov 2025 09:02:27 +0900 Subject: [PATCH] Add check for large files in meson.build A similar check existed in the MSVC scripts that have been removed in v17 by 1301c80b2167, but nothing of the kind was checked in meson when building with a 4-byte off_t. This commit adds a check to fail the builds when trying to use a relation file size higher than 1GB when off_t is 4 bytes, like ./configure, rather than detecting these failures at runtime because the code is not able to handle large files in this case. Backpatch down to v16, where meson has been introduced. Discussion: https://postgr.es/m/aQ0hG36IrkaSGfN8@paquier.xyz Backpatch-through: 16 --- meson.build | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/meson.build b/meson.build index 24aeffe929f..c1e17aa3040 100644 --- a/meson.build +++ b/meson.build @@ -452,6 +452,14 @@ else segsize = (get_option('segsize') * 1024 * 1024 * 1024) / blocksize endif +# If we don't have largefile support, can't handle segment size >= 2GB. +if cc.sizeof('off_t', args: test_c_args) < 8 + segsize_bytes = segsize * blocksize + if segsize_bytes >= (2 * 1024 * 1024 * 1024) + error('Large file support is not enabled. Segment size cannot be larger than 1GB.') + endif +endif + cdata.set('BLCKSZ', blocksize, description: '''Size of a disk block --- this also limits the size of a tuple. You can set it bigger if you need bigger tuples (although TOAST should reduce the need