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

* 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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13
newlib/ChangeLog
View File

@ -1,3 +1,16 @@
2009-04-24 Jeff johnston <jjohnstn@redhat.com>
* 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.
2009-04-24 Joseph Myers <joseph@codesourcery.com>
* libc/include/stdint.h (UINTPTR_MAX): Define to __UINTPTR_MAX__

37
newlib/configure vendored
View File

@ -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"

23
newlib/configure.in
View File

@ -395,6 +395,29 @@ if test $libc_cv_initfinit_array = yes; then
AC_DEFINE_UNQUOTED(HAVE_INITFINI_ARRAY)
fi
AC_CACHE_CHECK(long double equals double,
newlib_ldbl_eq_dbl, [dnl
cat > conftest.c <<EOF
#include <float.h>
#if DBL_MANT_DIG == LDBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
LDBL_MAX_EXP == DBL_MAX_EXP
#define _LDBL_EQ_DBL
#else
#error "LDBL != DBL"
#endif
EOF
if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
-static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD])
then
newlib_ldbl_eq_dbl=yes;
else
newlib_ldbl_eq_dbl=no;
fi
rm -f conftest*])
if test $newlib_ldbl_eq_dbl = yes; then
AC_DEFINE_UNQUOTED(_LDBL_EQ_DBL)
fi
AC_CONFIG_FILES([Makefile],
[if test -n "$CONFIG_FILES"; then
unset ac_file

8
newlib/libc/include/math.h
View File

@ -334,8 +334,8 @@ extern float log2f _PARAMS((float));
extern float hypotf _PARAMS((float, float));
#endif /* ! defined (_REENT_ONLY) */
/* On platforms where long double math functions are supported. */
#ifdef _HAVE_LDBL_MATH
/* On platforms where long double equals double. */
#ifdef _LDBL_EQ_DBL
/* Reentrant ANSI C functions. */
#ifndef __math_68881
extern long double atanl _PARAMS((long double));
@ -400,14 +400,14 @@ extern long double lgammal _PARAMS((long double));
extern long double erfl _PARAMS((long double));
extern long double erfcl _PARAMS((long double));
#endif /* ! defined (_REENT_ONLY) */
#else /* !_HAVE_LDBL_MATH */
#else /* !_LDBL_EQ_DBL */
#ifdef __i386__
/* Other long double precision functions. */
extern _LONG_DOUBLE rintl _PARAMS((_LONG_DOUBLE));
extern long int lrintl _PARAMS((_LONG_DOUBLE));
extern _LONG_LONG_TYPE llrintl _PARAMS((_LONG_DOUBLE));
#endif /* __i386__ */
#endif /* !_HAVE_LDBL_MATH */
#endif /* !_LDBL_EQ_DBL */
#endif /* !defined (__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L */

6
newlib/libc/include/stdlib.h
View File

@ -199,11 +199,11 @@ int _EXFUN(_system_r,(struct _reent *, const char *));
_VOID _EXFUN(__eprintf,(const char *, const char *, unsigned int, const char *));
/* On platforms where long double stdlib functions are supported. */
#ifdef _HAVE_LDBL_STDLIB
/* On platforms where long double equals double. */
#ifdef _LDBL_EQ_DBL
extern long double strtold (const char *, char **);
extern long double wcstold (const wchar_t *, wchar_t **);
#endif /* _HAVE_LDBL_STDLIB */
#endif /* _LDBL_EQ_DBL */
_END_STD_C

9
newlib/libc/stdlib/local.h
View File

@ -63,13 +63,4 @@ int __iso_8859_index (const char *);
extern wchar_t __cp_conv[12][0x80];
int __cp_index (const char *);
#include <float.h>
/* Check if long double is as wide as double. */
#if (!defined(__STRICT_ANSI__) || __STDC_VERSION__ > 199901L || \
defined(__cplusplus)) && defined(LDBL_MANT_DIG) && \
(DBL_MANT_DIG == LDBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
LDBL_MAX_EXP == DBL_MAX_EXP)
#define _LDBL_EQ_DBL
#endif
#endif

10
newlib/libm/common/local.h
View File

@ -1,9 +1 @@
#include <float.h>
/* Check if long double is as wide as double. */
#if (!defined(__STRICT_ANSI__) || __STDC_VERSION__ > 199901L || \
defined(__cplusplus)) && defined(LDBL_MANT_DIG) && \
(DBL_MANT_DIG == LDBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
LDBL_MAX_EXP == DBL_MAX_EXP)
#define _LDBL_EQ_DBL
#endif
/* placeholder for future usage. */

3
newlib/newlib.hin
View File

@ -46,6 +46,9 @@
functions. */
#undef _ATEXIT_DYNAMIC_ALLOC
/* True if long double supported and it is equal to double. */
#undef _LDBL_EQ_DBL
/*
* Iconv encodings enabled ("to" direction)
*/