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pgsql: Make PGAC_C_BUILTIN_OP_OVERFLOW link instead of just compiling.

From:	Andres Freund <andres(at)anarazel(dot)de>
To:	pgsql-committers(at)postgresql(dot)org
Subject:	pgsql: Make PGAC_C_BUILTIN_OP_OVERFLOW link instead of just compiling.
Date:	2017-12-13 01:23:07
Message-ID:	E1eOvlL-0007VQ-A2@gemulon.postgresql.org
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Make PGAC_C_BUILTIN_OP_OVERFLOW link instead of just compiling.

Otherwise the detection can spuriously detect symbol as available,
because the compiler may just emits reference to non-existant symbol.

Branch
------
master

Modified Files
--------------
config/c-compiler.m4 | 5 +++--
configure | 7 +++++--
2 files changed, 8 insertions(+), 4 deletions(-)

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Next Message	Peter Eisentraut	2017-12-13 02:03:17	pgsql: PL/Python: Fix potential NULL pointer dereference
Previous Message	Andres Freund	2017-12-13 01:01:19	pgsql: Use new overflow aware integer operations.