From 85656c1bef4af031f8e9801d927cdaeaaae95566 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Wed, 1 Jul 2026 13:44:45 -0400 Subject: [PATCH] Fix macro-redefinition warning introduced by aeb07c55f. Some platforms provide a definition of unreachable() in standard C headers, leading to a conflict with unreachable() in the new timezone code. It seems best for our purposes to conform to what pg_unreachable() does, so #undef away the platform version. Reported-by: Tristan Partin Discussion: https://postgr.es/m/DJNDN9UQS9GP.11L4NJ1HHE1ZJ@partin.io --- src/timezone/private.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/timezone/private.h b/src/timezone/private.h index 0d02e620b6f..2a1a64d43c9 100644 --- a/src/timezone/private.h +++ b/src/timezone/private.h @@ -184,6 +184,8 @@ */ #define INITIALIZE(x) ((x) = 0) +/* Some platforms provide unreachable(), but let's rely on our own version */ +#undef unreachable #define unreachable() pg_unreachable() /*