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Commit0f19d0f

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Remove long-dead support for platforms without sig_atomic_t.
C89 requires <signal.h> to define sig_atomic_t, and there is no evidencein the buildfarm that any supported platforms don't comply. Remove theconfigure test to stop wasting build cycles on a purely historical issue.(Once upon a time, we cared about supporting C89-compliant compilers onmachines with pre-C89 system headers, but that use-case has been dead forquite a few years.)I have some other fixes planned in this area, but let's start with thisto see if the buildfarm produces any surprising results.
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‎configure

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@@ -14151,20 +14151,6 @@ _ACEOF
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fi
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# We also check for sig_atomic_t, which *should* be defined per ANSI
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# C, but is missing on some old platforms.
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ac_fn_c_check_type"$LINENO""sig_atomic_t""ac_cv_type_sig_atomic_t""#include <signal.h>
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"
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iftest"x$ac_cv_type_sig_atomic_t" = xyes;then:
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cat>>confdefs.h<<_ACEOF
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#define HAVE_SIG_ATOMIC_T 1
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_ACEOF
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fi
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# Check for extensions offering the integer scalar type __int128.
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{$as_echo"$as_me:${as_lineno-$LINENO}: checking for __int128">&5
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$as_echo_n"checking for __int128...">&6; }

‎configure.in

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@@ -1831,10 +1831,6 @@ AC_DEFINE_UNQUOTED(MAXIMUM_ALIGNOF, $MAX_ALIGNOF, [Define as the maximum alignme
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AC_CHECK_TYPES([int8, uint8, int64, uint64], [], [],
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[#include <stdio.h>])
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# We also check for sig_atomic_t, which *should* be defined per ANSI
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# C, but is missing on some old platforms.
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AC_CHECK_TYPES(sig_atomic_t, [], [], [#include <signal.h>])
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# Check for extensions offering the integer scalar type __int128.
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PGAC_TYPE_128BIT_INT
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‎src/include/c.h

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@@ -334,11 +334,6 @@ typedef unsigned PG_INT128_TYPE uint128;
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#defineHAVE_INT64_TIMESTAMP
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#endif
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/* sig_atomic_t is required by ANSI C, but may be missing on old platforms */
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#ifndefHAVE_SIG_ATOMIC_T
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typedefintsig_atomic_t;
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#endif
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/*
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* Size
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*Size of any memory resident object, as returned by sizeof.

‎src/include/pg_config.h.in

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/* Define to 1 if you have sigsetjmp(). */
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#undef HAVE_SIGSETJMP
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/* Define to 1 if the system has the type `sig_atomic_t'. */
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#undef HAVE_SIG_ATOMIC_T
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/* Define to 1 if you have the `snprintf' function. */
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#undef HAVE_SNPRINTF
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‎src/include/pg_config.h.win32

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@@ -322,9 +322,6 @@
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/* Define to 1 if you have sigsetjmp(). */
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/* #undef HAVE_SIGSETJMP */
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/* Define to 1 if the system has the type `sig_atomic_t'. */
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#define HAVE_SIG_ATOMIC_T 1
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/* Define to 1 if you have the `snprintf' function. */
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/* #undef HAVE_SNPRINTF */
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