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Remove long-dead support for platforms without sig_atomic_t.

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C89 requires <signal.h> to define sig_atomic_t, and there is no evidence
in the buildfarm that any supported platforms don't comply.  Remove the
configure test to stop wasting build cycles on a purely historical issue.
(Once upon a time, we cared about supporting C89-compliant compilers on
machines with pre-C89 system headers, but that use-case has been dead for
quite a few years.)

I have some other fixes planned in this area, but let's start with this
to see if the buildfarm produces any surprising results.
This commit is contained in:
Tom Lane
2015-08-31 01:36:46 -04:00
parent 794e2558be
commit 0f19d0f12f
5 changed files with 0 additions and 29 deletions
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4
configure.in
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@ -1831,10 +1831,6 @@ AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignme
AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
[#include <stdio.h>])
# We also check for sig_atomic_t, which *should* be defined per ANSI
# C, but is missing on some old platforms.
AC_CHECK_TYPES(sig_atomic_t, [], [], [#include <signal.h>])
# Check for extensions offering the integer scalar type __int128.
PGAC_TYPE_128BIT_INT