diff options
Diffstat (limited to 'gl/m4/math_h.m4')
| -rw-r--r-- | gl/m4/math_h.m4 | 287 |
1 files changed, 250 insertions, 37 deletions
diff --git a/gl/m4/math_h.m4 b/gl/m4/math_h.m4 index 2d89ca3f..bf0845fd 100644 --- a/gl/m4/math_h.m4 +++ b/gl/m4/math_h.m4 @@ -1,5 +1,5 @@ -# math_h.m4 serial 21 -dnl Copyright (C) 2007-2010 Free Software Foundation, Inc. +# math_h.m4 serial 114 +dnl Copyright (C) 2007-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -8,7 +8,6 @@ AC_DEFUN([gl_MATH_H], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([math.h]) - AC_REQUIRE([AC_C_INLINE]) AC_CACHE_CHECK([whether NAN macro works], [gl_cv_header_math_nan_works], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]], @@ -38,9 +37,20 @@ AC_DEFUN([gl_MATH_H], dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. - gl_WARN_ON_USE_PREPARE([[#include <math.h> - ]], [acosl asinl atanl ceilf ceill cosl expl floorf floorl frexpl - ldexpl logb logl round roundf roundl sinl sqrtl tanl trunc truncf truncl]) + gl_WARN_ON_USE_PREPARE([[#include <math.h>]], + [acosf acosl asinf asinl atanf atanl + cbrt cbrtf cbrtl ceilf ceill copysign copysignf copysignl cosf cosl coshf + expf expl exp2 exp2f exp2l expm1 expm1f expm1l + fabsf fabsl floorf floorl fma fmaf fmal + fmod fmodf fmodl frexpf frexpl hypotf hypotl + ilogb ilogbf ilogbl + ldexpf ldexpl + log logf logl log10 log10f log10l log1p log1pf log1pl log2 log2f log2l + logb logbf logbl + modf modff modfl powf + remainder remainderf remainderl + rint rintf rintl round roundf roundl sinf sinl sinhf sqrtf sqrtl + tanf tanl tanhf trunc truncf truncl]) ]) AC_DEFUN([gl_MATH_MODULE_INDICATOR], @@ -54,62 +64,189 @@ AC_DEFUN([gl_MATH_MODULE_INDICATOR], AC_DEFUN([gl_MATH_H_DEFAULTS], [ - GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL]) - GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL]) - GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL]) - GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF]) - GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL]) - GNULIB_COSL=0; AC_SUBST([GNULIB_COSL]) - GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL]) - GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF]) - GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL]) - GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP]) - GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL]) - GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE]) - GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF]) - GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN]) - GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF]) - GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND]) - GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL]) - GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL]) - GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB]) - GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL]) - GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND]) - GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF]) - GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL]) - GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT]) - GNULIB_SINL=0; AC_SUBST([GNULIB_SINL]) - GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL]) - GNULIB_TANL=0; AC_SUBST([GNULIB_TANL]) - GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC]) - GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF]) - GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL]) + GNULIB_ACOSF=0; AC_SUBST([GNULIB_ACOSF]) + GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL]) + GNULIB_ASINF=0; AC_SUBST([GNULIB_ASINF]) + GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL]) + GNULIB_ATANF=0; AC_SUBST([GNULIB_ATANF]) + GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL]) + GNULIB_ATAN2F=0; AC_SUBST([GNULIB_ATAN2F]) + GNULIB_CBRT=0; AC_SUBST([GNULIB_CBRT]) + GNULIB_CBRTF=0; AC_SUBST([GNULIB_CBRTF]) + GNULIB_CBRTL=0; AC_SUBST([GNULIB_CBRTL]) + GNULIB_CEIL=0; AC_SUBST([GNULIB_CEIL]) + GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF]) + GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL]) + GNULIB_COPYSIGN=0; AC_SUBST([GNULIB_COPYSIGN]) + GNULIB_COPYSIGNF=0; AC_SUBST([GNULIB_COPYSIGNF]) + GNULIB_COPYSIGNL=0; AC_SUBST([GNULIB_COPYSIGNL]) + GNULIB_COSF=0; AC_SUBST([GNULIB_COSF]) + GNULIB_COSL=0; AC_SUBST([GNULIB_COSL]) + GNULIB_COSHF=0; AC_SUBST([GNULIB_COSHF]) + GNULIB_EXPF=0; AC_SUBST([GNULIB_EXPF]) + GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL]) + GNULIB_EXP2=0; AC_SUBST([GNULIB_EXP2]) + GNULIB_EXP2F=0; AC_SUBST([GNULIB_EXP2F]) + GNULIB_EXP2L=0; AC_SUBST([GNULIB_EXP2L]) + GNULIB_EXPM1=0; AC_SUBST([GNULIB_EXPM1]) + GNULIB_EXPM1F=0; AC_SUBST([GNULIB_EXPM1F]) + GNULIB_EXPM1L=0; AC_SUBST([GNULIB_EXPM1L]) + GNULIB_FABSF=0; AC_SUBST([GNULIB_FABSF]) + GNULIB_FABSL=0; AC_SUBST([GNULIB_FABSL]) + GNULIB_FLOOR=0; AC_SUBST([GNULIB_FLOOR]) + GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF]) + GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL]) + GNULIB_FMA=0; AC_SUBST([GNULIB_FMA]) + GNULIB_FMAF=0; AC_SUBST([GNULIB_FMAF]) + GNULIB_FMAL=0; AC_SUBST([GNULIB_FMAL]) + GNULIB_FMOD=0; AC_SUBST([GNULIB_FMOD]) + GNULIB_FMODF=0; AC_SUBST([GNULIB_FMODF]) + GNULIB_FMODL=0; AC_SUBST([GNULIB_FMODL]) + GNULIB_FREXPF=0; AC_SUBST([GNULIB_FREXPF]) + GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP]) + GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL]) + GNULIB_HYPOT=0; AC_SUBST([GNULIB_HYPOT]) + GNULIB_HYPOTF=0; AC_SUBST([GNULIB_HYPOTF]) + GNULIB_HYPOTL=0; AC_SUBST([GNULIB_HYPOTL]) + GNULIB_ILOGB=0; AC_SUBST([GNULIB_ILOGB]) + GNULIB_ILOGBF=0; AC_SUBST([GNULIB_ILOGBF]) + GNULIB_ILOGBL=0; AC_SUBST([GNULIB_ILOGBL]) + GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE]) + GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF]) + GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN]) + GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF]) + GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND]) + GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL]) + GNULIB_LDEXPF=0; AC_SUBST([GNULIB_LDEXPF]) + GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL]) + GNULIB_LOG=0; AC_SUBST([GNULIB_LOG]) + GNULIB_LOGF=0; AC_SUBST([GNULIB_LOGF]) + GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL]) + GNULIB_LOG10=0; AC_SUBST([GNULIB_LOG10]) + GNULIB_LOG10F=0; AC_SUBST([GNULIB_LOG10F]) + GNULIB_LOG10L=0; AC_SUBST([GNULIB_LOG10L]) + GNULIB_LOG1P=0; AC_SUBST([GNULIB_LOG1P]) + GNULIB_LOG1PF=0; AC_SUBST([GNULIB_LOG1PF]) + GNULIB_LOG1PL=0; AC_SUBST([GNULIB_LOG1PL]) + GNULIB_LOG2=0; AC_SUBST([GNULIB_LOG2]) + GNULIB_LOG2F=0; AC_SUBST([GNULIB_LOG2F]) + GNULIB_LOG2L=0; AC_SUBST([GNULIB_LOG2L]) + GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB]) + GNULIB_LOGBF=0; AC_SUBST([GNULIB_LOGBF]) + GNULIB_LOGBL=0; AC_SUBST([GNULIB_LOGBL]) + GNULIB_MODF=0; AC_SUBST([GNULIB_MODF]) + GNULIB_MODFF=0; AC_SUBST([GNULIB_MODFF]) + GNULIB_MODFL=0; AC_SUBST([GNULIB_MODFL]) + GNULIB_POWF=0; AC_SUBST([GNULIB_POWF]) + GNULIB_REMAINDER=0; AC_SUBST([GNULIB_REMAINDER]) + GNULIB_REMAINDERF=0; AC_SUBST([GNULIB_REMAINDERF]) + GNULIB_REMAINDERL=0; AC_SUBST([GNULIB_REMAINDERL]) + GNULIB_RINT=0; AC_SUBST([GNULIB_RINT]) + GNULIB_RINTF=0; AC_SUBST([GNULIB_RINTF]) + GNULIB_RINTL=0; AC_SUBST([GNULIB_RINTL]) + GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND]) + GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF]) + GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL]) + GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT]) + GNULIB_SINF=0; AC_SUBST([GNULIB_SINF]) + GNULIB_SINL=0; AC_SUBST([GNULIB_SINL]) + GNULIB_SINHF=0; AC_SUBST([GNULIB_SINHF]) + GNULIB_SQRTF=0; AC_SUBST([GNULIB_SQRTF]) + GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL]) + GNULIB_TANF=0; AC_SUBST([GNULIB_TANF]) + GNULIB_TANL=0; AC_SUBST([GNULIB_TANL]) + GNULIB_TANHF=0; AC_SUBST([GNULIB_TANHF]) + GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC]) + GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF]) + GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL]) dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF]) HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL]) + HAVE_ASINF=1; AC_SUBST([HAVE_ASINF]) HAVE_ASINL=1; AC_SUBST([HAVE_ASINL]) + HAVE_ATANF=1; AC_SUBST([HAVE_ATANF]) HAVE_ATANL=1; AC_SUBST([HAVE_ATANL]) + HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F]) + HAVE_CBRT=1; AC_SUBST([HAVE_CBRT]) + HAVE_CBRTF=1; AC_SUBST([HAVE_CBRTF]) + HAVE_CBRTL=1; AC_SUBST([HAVE_CBRTL]) + HAVE_COPYSIGN=1; AC_SUBST([HAVE_COPYSIGN]) + HAVE_COPYSIGNL=1; AC_SUBST([HAVE_COPYSIGNL]) + HAVE_COSF=1; AC_SUBST([HAVE_COSF]) HAVE_COSL=1; AC_SUBST([HAVE_COSL]) + HAVE_COSHF=1; AC_SUBST([HAVE_COSHF]) + HAVE_EXPF=1; AC_SUBST([HAVE_EXPF]) HAVE_EXPL=1; AC_SUBST([HAVE_EXPL]) + HAVE_EXPM1=1; AC_SUBST([HAVE_EXPM1]) + HAVE_EXPM1F=1; AC_SUBST([HAVE_EXPM1F]) + HAVE_FABSF=1; AC_SUBST([HAVE_FABSF]) + HAVE_FABSL=1; AC_SUBST([HAVE_FABSL]) + HAVE_FMA=1; AC_SUBST([HAVE_FMA]) + HAVE_FMAF=1; AC_SUBST([HAVE_FMAF]) + HAVE_FMAL=1; AC_SUBST([HAVE_FMAL]) + HAVE_FMODF=1; AC_SUBST([HAVE_FMODF]) + HAVE_FMODL=1; AC_SUBST([HAVE_FMODL]) + HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF]) + HAVE_HYPOTF=1; AC_SUBST([HAVE_HYPOTF]) + HAVE_HYPOTL=1; AC_SUBST([HAVE_HYPOTL]) + HAVE_ILOGB=1; AC_SUBST([HAVE_ILOGB]) + HAVE_ILOGBF=1; AC_SUBST([HAVE_ILOGBF]) + HAVE_ILOGBL=1; AC_SUBST([HAVE_ILOGBL]) HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF]) HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND]) HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL]) + HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF]) + HAVE_LOGF=1; AC_SUBST([HAVE_LOGF]) HAVE_LOGL=1; AC_SUBST([HAVE_LOGL]) + HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F]) + HAVE_LOG10L=1; AC_SUBST([HAVE_LOG10L]) + HAVE_LOG1P=1; AC_SUBST([HAVE_LOG1P]) + HAVE_LOG1PF=1; AC_SUBST([HAVE_LOG1PF]) + HAVE_LOG1PL=1; AC_SUBST([HAVE_LOG1PL]) + HAVE_LOGBF=1; AC_SUBST([HAVE_LOGBF]) + HAVE_LOGBL=1; AC_SUBST([HAVE_LOGBL]) + HAVE_MODFF=1; AC_SUBST([HAVE_MODFF]) + HAVE_MODFL=1; AC_SUBST([HAVE_MODFL]) + HAVE_POWF=1; AC_SUBST([HAVE_POWF]) + HAVE_REMAINDER=1; AC_SUBST([HAVE_REMAINDER]) + HAVE_REMAINDERF=1; AC_SUBST([HAVE_REMAINDERF]) + HAVE_RINT=1; AC_SUBST([HAVE_RINT]) + HAVE_RINTL=1; AC_SUBST([HAVE_RINTL]) + HAVE_SINF=1; AC_SUBST([HAVE_SINF]) HAVE_SINL=1; AC_SUBST([HAVE_SINL]) + HAVE_SINHF=1; AC_SUBST([HAVE_SINHF]) + HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF]) HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL]) + HAVE_TANF=1; AC_SUBST([HAVE_TANF]) HAVE_TANL=1; AC_SUBST([HAVE_TANL]) + HAVE_TANHF=1; AC_SUBST([HAVE_TANHF]) HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL]) HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL]) HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL]) + HAVE_DECL_CBRTF=1; AC_SUBST([HAVE_DECL_CBRTF]) + HAVE_DECL_CBRTL=1; AC_SUBST([HAVE_DECL_CBRTL]) HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF]) HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL]) + HAVE_DECL_COPYSIGNF=1; AC_SUBST([HAVE_DECL_COPYSIGNF]) HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL]) HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL]) + HAVE_DECL_EXP2=1; AC_SUBST([HAVE_DECL_EXP2]) + HAVE_DECL_EXP2F=1; AC_SUBST([HAVE_DECL_EXP2F]) + HAVE_DECL_EXP2L=1; AC_SUBST([HAVE_DECL_EXP2L]) + HAVE_DECL_EXPM1L=1; AC_SUBST([HAVE_DECL_EXPM1L]) HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF]) HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL]) HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL]) HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL]) - HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB]) HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL]) + HAVE_DECL_LOG10L=1; AC_SUBST([HAVE_DECL_LOG10L]) + HAVE_DECL_LOG2=1; AC_SUBST([HAVE_DECL_LOG2]) + HAVE_DECL_LOG2F=1; AC_SUBST([HAVE_DECL_LOG2F]) + HAVE_DECL_LOG2L=1; AC_SUBST([HAVE_DECL_LOG2L]) + HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB]) + HAVE_DECL_REMAINDER=1; AC_SUBST([HAVE_DECL_REMAINDER]) + HAVE_DECL_REMAINDERL=1; AC_SUBST([HAVE_DECL_REMAINDERL]) + HAVE_DECL_RINTF=1; AC_SUBST([HAVE_DECL_RINTF]) HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND]) HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF]) HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL]) @@ -119,22 +256,98 @@ AC_DEFUN([gl_MATH_H_DEFAULTS], HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC]) HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF]) HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL]) + REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF]) + REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL]) + REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL]) REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF]) REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL]) + REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1]) + REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F]) + REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2]) + REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L]) + REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL]) + REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR]) REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF]) REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL]) + REPLACE_FMA=0; AC_SUBST([REPLACE_FMA]) + REPLACE_FMAF=0; AC_SUBST([REPLACE_FMAF]) + REPLACE_FMAL=0; AC_SUBST([REPLACE_FMAL]) + REPLACE_FMOD=0; AC_SUBST([REPLACE_FMOD]) + REPLACE_FMODF=0; AC_SUBST([REPLACE_FMODF]) + REPLACE_FMODL=0; AC_SUBST([REPLACE_FMODL]) + REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF]) REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP]) REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL]) REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL]) + REPLACE_HYPOT=0; AC_SUBST([REPLACE_HYPOT]) + REPLACE_HYPOTF=0; AC_SUBST([REPLACE_HYPOTF]) + REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL]) + REPLACE_ILOGB=0; AC_SUBST([REPLACE_ILOGB]) + REPLACE_ILOGBF=0; AC_SUBST([REPLACE_ILOGBF]) REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE]) REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF]) REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN]) REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL]) + REPLACE_LOG=0; AC_SUBST([REPLACE_LOG]) + REPLACE_LOGF=0; AC_SUBST([REPLACE_LOGF]) + REPLACE_LOGL=0; AC_SUBST([REPLACE_LOGL]) + REPLACE_LOG10=0; AC_SUBST([REPLACE_LOG10]) + REPLACE_LOG10F=0; AC_SUBST([REPLACE_LOG10F]) + REPLACE_LOG10L=0; AC_SUBST([REPLACE_LOG10L]) + REPLACE_LOG1P=0; AC_SUBST([REPLACE_LOG1P]) + REPLACE_LOG1PF=0; AC_SUBST([REPLACE_LOG1PF]) + REPLACE_LOG1PL=0; AC_SUBST([REPLACE_LOG1PL]) + REPLACE_LOG2=0; AC_SUBST([REPLACE_LOG2]) + REPLACE_LOG2F=0; AC_SUBST([REPLACE_LOG2F]) + REPLACE_LOG2L=0; AC_SUBST([REPLACE_LOG2L]) + REPLACE_LOGB=0; AC_SUBST([REPLACE_LOGB]) + REPLACE_LOGBF=0; AC_SUBST([REPLACE_LOGBF]) + REPLACE_LOGBL=0; AC_SUBST([REPLACE_LOGBL]) + REPLACE_MODF=0; AC_SUBST([REPLACE_MODF]) + REPLACE_MODFF=0; AC_SUBST([REPLACE_MODFF]) + REPLACE_MODFL=0; AC_SUBST([REPLACE_MODFL]) REPLACE_NAN=0; AC_SUBST([REPLACE_NAN]) + REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER]) + REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF]) + REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL]) REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND]) REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF]) REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL]) REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT]) REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC]) + REPLACE_SQRTL=0; AC_SUBST([REPLACE_SQRTL]) + REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC]) + REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF]) REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL]) ]) + +# gl_LONG_DOUBLE_VS_DOUBLE +# determines whether 'long double' and 'double' have the same representation. +# Sets variable HAVE_SAME_LONG_DOUBLE_AS_DOUBLE to 0 or 1, and defines +# HAVE_SAME_LONG_DOUBLE_AS_DOUBLE accordingly. +# The currently known platforms where this is the case are: +# Linux/HPPA, Minix 3.1.8, AIX 5, AIX 6 and 7 with xlc, MSVC 9. +AC_DEFUN([gl_LONG_DOUBLE_VS_DOUBLE], +[ + AC_CACHE_CHECK([whether long double and double are the same], + [gl_cv_long_double_equals_double], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <float.h>]], + [[typedef int check[sizeof (long double) == sizeof (double) + && LDBL_MANT_DIG == DBL_MANT_DIG + && LDBL_MAX_EXP == DBL_MAX_EXP + && LDBL_MIN_EXP == DBL_MIN_EXP + ? 1 : -1]; + ]])], + [gl_cv_long_double_equals_double=yes], + [gl_cv_long_double_equals_double=no]) + ]) + if test $gl_cv_long_double_equals_double = yes; then + AC_DEFINE([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE], [1], + [Define to 1 if 'long double' and 'double' have the same representation.]) + HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=1 + else + HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=0 + fi + AC_SUBST([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE]) +]) |