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- (dtucker) [configure.ac] Only try gcc -std=gnu99 if LLONG_MAX isn't

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defined, and check that it helps before keeping it in CFLAGS.  Some old
   gcc's don't set an error code when encountering an unknown value in -std.
   Found and tested by tim@.
This commit is contained in:
Darren Tucker 2005-06-03 17:58:31 +10:00
parent fcc7ff1de8
commit 67b3703da3
2 changed files with 22 additions and 10 deletions
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8
ChangeLog
View File

@ -1,3 +1,9 @@
20050603
- (dtucker) [configure.ac] Only try gcc -std=gnu99 if LLONG_MAX isn't
defined, and check that it helps before keeping it in CFLAGS. Some old
gcc's don't set an error code when encountering an unknown value in -std.
Found and tested by tim@.
20050602
- (tim) [configure.ac] Some platforms need sys/types.h for arpa/nameser.h.
Take AC_CHECK_HEADERS test out of ultrix section. It caused other platforms
@ -2673,4 +2679,4 @@
- (djm) Trim deprecated options from INSTALL. Mention UsePAM
- (djm) Fix quote handling in sftp; Patch from admorten AT umich.edu
$Id: ChangeLog,v 1.3810 2005/06/03 03:28:29 tim Exp $
$Id: ChangeLog,v 1.3811 2005/06/03 07:58:31 dtucker Exp $

18
configure.ac
View File

@ -1,4 +1,4 @@
# $Id: configure.ac,v 1.272 2005/06/03 03:28:29 tim Exp $
# $Id: configure.ac,v 1.273 2005/06/03 07:58:31 dtucker Exp $
#
# Copyright (c) 1999-2004 Damien Miller
#
@ -77,18 +77,24 @@ fi
AC_SUBST(LD)
AC_C_INLINE
AC_CHECK_DECL(LLONG_MAX, have_llong_max=1, , [#include <limits.h>])
if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wno-uninitialized"
# Check for -std=gnu99 support (needed for LLONG_MIN/MAX on Linux)
if test -z "$have_llong_max"; then
# retry LLONG_MAX with -std=gnu99, needed on some Linuxes
unset ac_cv_have_decl_LLONG_MAX
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -std=gnu99"
AC_MSG_CHECKING(whether cc accepts -std=gnu99 option)
AC_TRY_COMPILE([], [return(0);], [AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
CFLAGS="$saved_CFLAGS"],
AC_CHECK_DECL(LLONG_MAX,
[have_llong_max=1],
[CFLAGS="$saved_CFLAGS"],
[#include <limits.h>]
)
fi
fi
AC_ARG_WITH(rpath,
[ --without-rpath Disable auto-added -R linker paths],