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Re-order configure tests to reflect the fact that the code generated for 

posix_fadvise and other file-related functions can depend on _LARGEFILE_SOURCE
and/or _FILE_OFFSET_BITS.  Per report from Robert Treat.

Back-patch to 8.4.  This has been wrong all along, but we weren't really using
posix_fadvise in anger before, and AC_FUNC_FSEEKO seems to mask the issue well
enough for that function.
This commit is contained in:
Tom Lane 2010-01-16 19:50:26 +00:00
parent 196a6ca5de
commit a6c75be23d
2 changed files with 1012 additions and 1008 deletions
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1970
configure vendored
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50
configure.in
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@ -1,5 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
dnl $PostgreSQL: pgsql/configure.in,v 1.620 2010/01/07 03:24:57 tgl Exp $
dnl $PostgreSQL: pgsql/configure.in,v 1.621 2010/01/16 19:50:26 tgl Exp $
dnl
dnl Developers, please strive to achieve this order:
dnl
@ -1144,6 +1144,20 @@ AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)])
fi
# Check largefile support. You might think this is a system service not a
# compiler characteristic, but you'd be wrong. We must check this before
# probing existence of related functions such as fseeko, since the largefile
# defines can affect what is generated for that.
AC_SYS_LARGEFILE
# Check for largefile support (must be after AC_SYS_LARGEFILE)
AC_CHECK_SIZEOF([off_t])
# If we don't have largefile support, can't handle segsize >= 2GB.
if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
fi
##
## Functions, global variables
@ -1155,6 +1169,17 @@ PGAC_FUNC_GETTIMEOFDAY_1ARG
AC_CHECK_FUNCS([cbrt dlopen fcvt fdatasync getifaddrs getpeereid getpeerucred getrlimit memmove poll pstat readlink setproctitle setsid sigprocmask symlink sysconf towlower utime utimes waitpid wcstombs])
AC_REPLACE_FUNCS(fseeko)
case $host_os in
# BSD/OS & NetBSD use a custom fseeko/ftello built on fsetpos/fgetpos
# Mingw uses macros to access Win32 API calls
bsdi*|netbsd*|mingw*)
AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
ac_cv_func_fseeko=yes;;
*)
AC_FUNC_FSEEKO;;
esac
# posix_fadvise() is a no-op on Solaris, so don't incur function overhead
# by calling it, 2009-04-02
# http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/posix_fadvise.c
@ -1367,17 +1392,6 @@ AC_CHECK_FUNCS(atexit, [],
[AC_CHECK_FUNCS(on_exit, [],
[AC_MSG_ERROR([neither atexit() nor on_exit() found])])])
AC_REPLACE_FUNCS(fseeko)
case $host_os in
# BSD/OS & NetBSD use a custom fseeko/ftello built on fsetpos/fgetpos
# Mingw uses macros to access Win32 API calls
bsdi*|netbsd*|mingw*)
AC_DEFINE(HAVE_FSEEKO, 1, [Define to 1 because replacement version used.])
ac_cv_func_fseeko=yes;;
*)
AC_FUNC_FSEEKO;;
esac
#
# Pthreads
@ -1651,18 +1665,6 @@ operating system; use --disable-thread-safety to disable thread safety.])
fi
fi
if test $ac_cv_func_fseeko = yes; then
AC_SYS_LARGEFILE
fi
# Check for largefile support (must be after AC_SYS_LARGEFILE)
AC_CHECK_SIZEOF([off_t])
# If we don't have largefile support, can't handle segsize >= 2GB.
if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
AC_MSG_ERROR([Large file support is not enabled. Segment size cannot be larger than 1GB.])
fi
# SunOS doesn't handle negative byte comparisons properly with +/- return
AC_FUNC_MEMCMP