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2009-04-24 Jeff johnston <jjohnstn@redhat.com>

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* configure.in: Add configuration test for long double equals dbl
        and set flag _LDBL_EQ_DBL if true.
        * configure: Regenerated.
        * newlib.hin: Add _LDBL_EQ_DBL flag.
        * libc/include/math.h: Use _LDBL_EQ_DBL flag instead of
        _HAVE_LDBL_MATH.
        * libc/include/stdlib.h: Use _LDBL_EQ_DBL flag instead of
        _HAVE_LDBL_STDLIB.
        * libc/common/local.h: Remove _LDBL_EQ_DBL flag setting.
        * libc/stdlib/local.h: Ditto.
This commit is contained in:
Jeff Johnston
2009-04-24 22:49:55 +00:00
parent de19487224
commit 35f31b6a98
8 changed files with 84 additions and 25 deletions
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37
newlib/configure vendored
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@ -11900,6 +11900,43 @@ if test $libc_cv_initfinit_array = yes; then
#define HAVE_INITFINI_ARRAY 1
_ACEOF
fi
echo "$as_me:$LINENO: checking long double equals double" >&5
echo $ECHO_N "checking long double equals double... $ECHO_C" >&6
if test "${newlib_ldbl_eq_dbl+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat > conftest.c <<EOF
#include <float.h>
#if DBL_MANT_DIG == LDBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
LDBL_MAX_EXP == DBL_MAX_EXP
#define _LDBL_EQ_DBL
#else
#error "LDBL != DBL"
#endif
EOF
if { ac_try='${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
-static -nostartfiles -nostdlib 1>&5'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }
then
newlib_ldbl_eq_dbl=yes;
else
newlib_ldbl_eq_dbl=no;
fi
rm -f conftest*
fi
echo "$as_me:$LINENO: result: $newlib_ldbl_eq_dbl" >&5
echo "${ECHO_T}$newlib_ldbl_eq_dbl" >&6
if test $newlib_ldbl_eq_dbl = yes; then
cat >>confdefs.h <<_ACEOF
#define _LDBL_EQ_DBL 1
_ACEOF
fi
ac_config_files="$ac_config_files Makefile"