- (dtucker) [configure.ac] Relocate LLONG_MAX calculation to after the

sizeof(long long) checks, to make fixing bug #1104 easier (no changes
   yet).
This commit is contained in:
Darren Tucker 2005-10-25 18:38:33 +10:00
parent 314d89e050
commit 537f1ed7df
2 changed files with 85 additions and 66 deletions

View File

@ -1,3 +1,8 @@
20051025
- (dtucker) [configure.ac] Relocate LLONG_MAX calculation to after the
sizeof(long long) checks, to make fixing bug #1104 easier (no changes
yet).
20051017
- (dtucker) [configure.ac] Bug #1097: Fix configure for cross-compiling.
/etc/default/login report and testing from aabaker at iee.org, corrections
@ -3105,4 +3110,4 @@
- (djm) Trim deprecated options from INSTALL. Mention UsePAM
- (djm) Fix quote handling in sftp; Patch from admorten AT umich.edu
$Id: ChangeLog,v 1.3920 2005/10/17 13:29:23 dtucker Exp $
$Id: ChangeLog,v 1.3921 2005/10/25 08:38:33 dtucker Exp $

View File

@ -1,4 +1,4 @@
# $Id: configure.ac,v 1.302 2005/10/17 13:29:23 dtucker Exp $
# $Id: configure.ac,v 1.303 2005/10/25 08:38:34 dtucker Exp $
#
# Copyright (c) 1999-2004 Damien Miller
#
@ -106,70 +106,6 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then
fi
fi
if test -z "$have_llong_max"; then
AC_MSG_CHECKING([for max value of long long])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <stdio.h>
/* Why is this so damn hard? */
#ifdef __GNUC__
# undef __GNUC__
#endif
#define __USE_ISOC99
#include <limits.h>
#define DATA "conftest.llminmax"
int main(void) {
FILE *f;
long long i, llmin, llmax = 0;
if((f = fopen(DATA,"w")) == NULL)
exit(1);
#if defined(LLONG_MIN) && defined(LLONG_MAX)
fprintf(stderr, "Using system header for LLONG_MIN and LLONG_MAX\n");
llmin = LLONG_MIN;
llmax = LLONG_MAX;
#else
fprintf(stderr, "Calculating LLONG_MIN and LLONG_MAX\n");
/* This will work on one's complement and two's complement */
for (i = 1; i > llmax; i <<= 1, i++)
llmax = i;
llmin = llmax + 1LL; /* wrap */
#endif
/* Sanity check */
if (llmin + 1 < llmin || llmin - 1 < llmin || llmax + 1 > llmax
|| llmax - 1 > llmax) {
fprintf(f, "unknown unknown\n");
exit(2);
}
if (fprintf(f ,"%lld %lld", llmin, llmax) < 0)
exit(3);
exit(0);
}
]])],
[
llong_min=`$AWK '{print $1}' conftest.llminmax`
llong_max=`$AWK '{print $2}' conftest.llminmax`
AC_MSG_RESULT($llong_max)
AC_DEFINE_UNQUOTED(LLONG_MAX, [${llong_max}LL],
[max value of long long calculated by configure])
AC_MSG_CHECKING([for min value of long long])
AC_MSG_RESULT($llong_min)
AC_DEFINE_UNQUOTED(LLONG_MIN, [${llong_min}LL],
[min value of long long calculated by configure])
],
[
AC_MSG_RESULT(not found)
],
[
AC_MSG_WARN([cross compiling: not checking])
]
)
fi
AC_ARG_WITH(rpath,
[ --without-rpath Disable auto-added -R linker paths],
[
@ -2053,6 +1989,84 @@ if test "x$ac_cv_sizeof_long_long_int" = "x4" ; then
ac_cv_sizeof_long_long_int=0
fi
# compute LLONG_MIN and LLONG_MAX if we don't know them.
if test -z "$have_llong_max"; then
AC_MSG_CHECKING([for max value of long long])
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <stdio.h>
/* Why is this so damn hard? */
#ifdef __GNUC__
# undef __GNUC__
#endif
#define __USE_ISOC99
#include <limits.h>
#define DATA "conftest.llminmax"
int main(void) {
FILE *f;
long long i, llmin, llmax = 0;
if((f = fopen(DATA,"w")) == NULL)
exit(1);
#if defined(LLONG_MIN) && defined(LLONG_MAX)
fprintf(stderr, "Using system header for LLONG_MIN and LLONG_MAX\n");
llmin = LLONG_MIN;
llmax = LLONG_MAX;
#else
fprintf(stderr, "Calculating LLONG_MIN and LLONG_MAX\n");
/* This will work on one's complement and two's complement */
for (i = 1; i > llmax; i <<= 1, i++)
llmax = i;
llmin = llmax + 1LL; /* wrap */
#endif
/* Sanity check */
if (llmin + 1 < llmin || llmin - 1 < llmin || llmax + 1 > llmax
|| llmax - 1 > llmax) {
fprintf(f, "unknown unknown\n");
exit(2);
}
if (fprintf(f ,"%lld %lld", llmin, llmax) < 0)
exit(3);
exit(0);
}
]])],
[
llong_min=`$AWK '{print $1}' conftest.llminmax`
llong_max=`$AWK '{print $2}' conftest.llminmax`
# snprintf on some Tru64s doesn't understand "%lld"
case "$host" in
alpha-dec-osf*)
if test "x$ac_cv_sizeof_long_long_int" = "x8" &&
test "x$llong_max" = "xld"; then
llong_min="-9223372036854775808"
llong_max="9223372036854775807"
fi
;;
esac
AC_MSG_RESULT($llong_max)
AC_DEFINE_UNQUOTED(LLONG_MAX, [${llong_max}LL],
[max value of long long calculated by configure])
AC_MSG_CHECKING([for min value of long long])
AC_MSG_RESULT($llong_min)
AC_DEFINE_UNQUOTED(LLONG_MIN, [${llong_min}LL],
[min value of long long calculated by configure])
],
[
AC_MSG_RESULT(not found)
],
[
AC_MSG_WARN([cross compiling: not checking])
]
)
fi
# More checks for data types
AC_CACHE_CHECK([for u_int type], ac_cv_have_u_int, [
AC_TRY_COMPILE(