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Remove dead setenv, unsetenv replacement code.

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setenv() and unsetenv() are in SUSv3 and targeted Unix systems have
them.  We still need special code for these on Windows, but that doesn't
require a configure probe.

This marks the first time we require a SUSv3 (POSIX.1-2001) facility
(rather than SUSv2).  The replacement code removed here was not needed
on any targeted system or any known non-EOL'd Unix system, and was
therefore dead and untested.

No need for vestigial HAVE_SETENV and HAVE_UNSETENV macros, because we
provide a replacement for Windows, and we didn't previously test the
macros.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Greg Stark <stark@mit.edu>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
This commit is contained in:
Thomas Munro
2022-08-05 09:38:36 +12:00
parent b79ec732d2
commit 71f5dc6dfb
7 changed files with 0 additions and 185 deletions
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43
configure vendored
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@ -16841,49 +16841,6 @@ esac
$as_echo "$as_me: On $host_os we will use our strtof wrapper." >&6;}
fi
case $host_os in
# Windows uses a specialised env handler
mingw*)
$as_echo "#define HAVE_SETENV 1" >>confdefs.h
$as_echo "#define HAVE_UNSETENV 1" >>confdefs.h
ac_cv_func_setenv=yes
ac_cv_func_unsetenv=yes
;;
*)
ac_fn_c_check_func "$LINENO" "setenv" "ac_cv_func_setenv"
if test "x$ac_cv_func_setenv" = xyes; then :
$as_echo "#define HAVE_SETENV 1" >>confdefs.h
else
case " $LIBOBJS " in
*" setenv.$ac_objext "* ) ;;
*) LIBOBJS="$LIBOBJS setenv.$ac_objext"
;;
esac
fi
ac_fn_c_check_func "$LINENO" "unsetenv" "ac_cv_func_unsetenv"
if test "x$ac_cv_func_unsetenv" = xyes; then :
$as_echo "#define HAVE_UNSETENV 1" >>confdefs.h
else
case " $LIBOBJS " in
*" unsetenv.$ac_objext "* ) ;;
*) LIBOBJS="$LIBOBJS unsetenv.$ac_objext"
;;
esac
fi
;;
esac
# System's version of getaddrinfo(), if any, may be used only if we found
# a definition for struct addrinfo; see notes in src/include/getaddrinfo.h.
# We use only our own getaddrinfo.c on Windows, but it's time to revisit that.