Mercurial > hg > octave-lyh > gnulib-hg
changeset 15902:5079d0860767
isfinite: Fix for platforms where 'long double' == 'double'.
* m4/isfinite.m4 (gl_ISFINITEL_WORKS): Require gl_LONG_DOUBLE_VS_DOUBLE.
Don't blindly assume 80-bit 'long double'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 09 Oct 2011 12:08:25 +0200 |
parents | 5711969eba55 |
children | 969352ed87a5 |
files | ChangeLog m4/isfinite.m4 |
diffstat | 2 files changed, 7 insertions(+), 2 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2011-10-09 Bruno Haible <bruno@clisp.org> + isfinite: Fix for platforms where 'long double' == 'double'. + * m4/isfinite.m4 (gl_ISFINITEL_WORKS): Require gl_LONG_DOUBLE_VS_DOUBLE. + Don't blindly assume 80-bit 'long double'. + isfinite, isinf, isnan tests: Avoid syntax error on MSVC 9. * m4/math_h.m4 (gl_LONG_DOUBLE_VS_DOUBLE): New macro. * modules/isfinite-tests (configure.ac): Require
--- a/m4/isfinite.m4 +++ b/m4/isfinite.m4 @@ -1,4 +1,4 @@ -# isfinite.m4 serial 12 +# isfinite.m4 serial 13 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -45,6 +45,7 @@ [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_BIGENDIAN]) + AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether isfinite(long double) works], [gl_cv_func_isfinitel_works], [ @@ -87,7 +88,7 @@ result |= 1; } -#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) +#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE /* Representation of an 80-bit 'long double' as an initializer for a sequence of 'unsigned int' words. */ # ifdef WORDS_BIGENDIAN